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+<sup><sup>*Release notes were automatically generated by [Shipkit](http://shipkit.org/)*</sup></sup>
+
+#### 0.3.0
+ - 2019-08-22 - 2396 commits by 29 authors - published to [![Bintray](https://img.shields.io/badge/Bintray-0.3.0-green.svg)](https://bintray.com/linkedin/maven/ambry/0.3.0)
+ - Commits: [Sivabalan Narayanan](https://github.com/nsivabalan) (592), [Gopalakrishna Holla](https://github.com/vgkholla) (484), [Priyesh Narayanan](https://github.com/pnarayanan) (402), sriramsub (325), [Casey Getz](https://github.com/cgtz) (99), Tianwei Li (96), Jay J Wylie (72), [Ming Xia](https://github.com/xiahome) (71), [Ze Mao](https://github.com/zzmao) (63), [Yingyi Zhang](https://github.com/jsjtzyy) (60), [Terry Li](https://github.com/Tianwei-Li) (32), [Rob Block](https://github.com/lightningrob) (30), [David Harju](https://github.com/dharju) (29), [Xun Yin](https://github.com/xunyin8) (12), Sriram Subramanian (6), [Ankur Agrawal](https://github.com/ankagrawal) (4), [Dmitry Nikiforov](https://github.com/dniq) (3), [Jasper Siepkes](https://github.com/siepkes) (3), [Justin Lin](https://github.com/justinlin-linkedin) (3), [André Laszlo](https://github.com/andrelaszlo) (1), [Bas van Schaik](https://github.com/sjvs) (1), Diego Mariani (1), [Enrico Olivelli](https://github.com/eolivelli) (1), [heipacker](https://github.com/heipacker) (1), johnnyjian (1), [Naresh Bafna](https://github.com/nareshbafna) (1), [ohze.net](https://github.com/ohze) (1), [Shuai Yuan](https://github.com/syuanca) (1), [Vincent Bernat](https://github.com/vincentbernat) (1)
+ - Fix directory deletion failure in DiskSpaceAllocator [(#1244)](https://github.com/linkedin/ambry/pull/1244)
+ - Add config option to connect to Cosmos with DirectHttps mode [(#1243)](https://github.com/linkedin/ambry/pull/1243)
+ - Use Timer instead of Histgram on some metrics [(#1242)](https://github.com/linkedin/ambry/pull/1242)
+ - Enable shipkit release publishing [(#1239)](https://github.com/linkedin/ambry/pull/1239)
+ - Fix gradle heap size configs [(#1238)](https://github.com/linkedin/ambry/pull/1238)
+ - Misc fixes in cluster manager, replication and compaction manager [(#1237)](https://github.com/linkedin/ambry/pull/1237)
+ - Clean up network related metrics. [(#1236)](https://github.com/linkedin/ambry/pull/1236)
+ - Upgrade gradle, fix test logging and int test CPU usage [(#1235)](https://github.com/linkedin/ambry/pull/1235)
+ - Implement helixAccountService with version history and blobs [(#1234)](https://github.com/linkedin/ambry/pull/1234)
+ - Support dynamically removing store from storage manager [(#1232)](https://github.com/linkedin/ambry/pull/1232)
+ - Fix broken builds by specifying Ubuntu trusty dist. [(#1231)](https://github.com/linkedin/ambry/pull/1231)
+ - Run azure recovery locally [(#1230)](https://github.com/linkedin/ambry/pull/1230)
+ - Implement get functionality for Azure Vcr [(#1229)](https://github.com/linkedin/ambry/pull/1229)
+ - Introducing Ambry partition state model and update Helix tool [(#1228)](https://github.com/linkedin/ambry/pull/1228)
+ - Create executor pool to take over network read/write tasks. [(#1227)](https://github.com/linkedin/ambry/pull/1227)
+ - Support dynamically adding store to storage manager [(#1226)](https://github.com/linkedin/ambry/pull/1226)
+ - Add cache of recently seen blobs in CloudBlobStore [(#1225)](https://github.com/linkedin/ambry/pull/1225)
+ - Ensure blobId with prefix in request header is correctly handled [(#1224)](https://github.com/linkedin/ambry/pull/1224)
+ - Set permissions for ambry data and operation files [(#1223)](https://github.com/linkedin/ambry/pull/1223)
+ - Support QPS throttling in NettyPerfClient [(#1220)](https://github.com/linkedin/ambry/pull/1220)
+ - Misc changes for adaptive operation tracker [(#1218)](https://github.com/linkedin/ambry/pull/1218)
+ - Allow NettyPerfClient to connect multiple frontends [(#1217)](https://github.com/linkedin/ambry/pull/1217)
+ - Implement VCR findEntriesSince method [(#1216)](https://github.com/linkedin/ambry/pull/1216)
+ - Free PutOperation references earlier [(#1215)](https://github.com/linkedin/ambry/pull/1215)
+ - Add more log infos in AmbryStateModel [(#1214)](https://github.com/linkedin/ambry/pull/1214)
+ - Allow store to skip disk flush during shutdown if disk I/O error occurs [(#1212)](https://github.com/linkedin/ambry/pull/1212)
+ - Cloud compactor schedule [(#1211)](https://github.com/linkedin/ambry/pull/1211)
+ - Refactoring DiskSpaceAllocator to support dynamically add/remove store [(#1210)](https://github.com/linkedin/ambry/pull/1210)
+ - Fix bug causing uploaded blobs to be empty [(#1209)](https://github.com/linkedin/ambry/pull/1209)
+ - Downgrade metrics library [(#1208)](https://github.com/linkedin/ambry/pull/1208)
+ - Fix partition lag metric typo [(#1207)](https://github.com/linkedin/ambry/pull/1207)
+ - Shutdown request handler before network server in ambry server [(#1206)](https://github.com/linkedin/ambry/pull/1206)
+ - Retry Cosmos requests after delay when they return 429 [(#1205)](https://github.com/linkedin/ambry/pull/1205)
+ - Fix typo in partition lag metric name [(#1204)](https://github.com/linkedin/ambry/pull/1204)
+ - Add off switch for replenishConnections and honor datanode health [(#1203)](https://github.com/linkedin/ambry/pull/1203)
+ - Fixed some issues with Segment GETs [(#1202)](https://github.com/linkedin/ambry/pull/1202)
+ - Fix potential cache incoherence issue. [(#1201)](https://github.com/linkedin/ambry/pull/1201)
+ - Add Cosmos record even if blob was previously uploaded [(#1200)](https://github.com/linkedin/ambry/pull/1200)
+ - Add configurable warm up for remote datacenter connections [(#1198)](https://github.com/linkedin/ambry/pull/1198)
+ - Improve GetWritablePartitionIds Performance for PUT Requests [(#1197)](https://github.com/linkedin/ambry/pull/1197)
+ - Improve OperationTracker to terminate when there are two NOT_FOUND from originating DC [(#1196)](https://github.com/linkedin/ambry/pull/1196)
+ - Add per partition replication lag metrics. [(#1195)](https://github.com/linkedin/ambry/pull/1195)
+ - Upgrade Helix library version and add auto maintenance mode in HelixVcrPopulateTool [(#1194)](https://github.com/linkedin/ambry/pull/1194)
+ - Segmented get metrics [(#1193)](https://github.com/linkedin/ambry/pull/1193)
+ - Azure container name must be lower case [(#1192)](https://github.com/linkedin/ambry/pull/1192)
+ - Add support for querying and purging dead blobs in Azure [(#1189)](https://github.com/linkedin/ambry/pull/1189)
+ - Add post blob size [(#1188)](https://github.com/linkedin/ambry/pull/1188)
+ - Segmented blob GET [(#1187)](https://github.com/linkedin/ambry/pull/1187)
+ - Maintain connection low watermark in NetworkClient [(#1186)](https://github.com/linkedin/ambry/pull/1186)
+ - Use cluster name as prefix in Azure blob container [(#1185)](https://github.com/linkedin/ambry/pull/1185)
+ - Introducing node-level/disk-level histogram in adaptive tracker [(#1184)](https://github.com/linkedin/ambry/pull/1184)
+ - Use customized blobId string as Azure blob name. [(#1181)](https://github.com/linkedin/ambry/pull/1181)
+ - Ensure all disconnected connections are handled by ResponseHandler [(#1180)](https://github.com/linkedin/ambry/pull/1180)
+ - Add resource control enable/disable [(#1179)](https://github.com/linkedin/ambry/pull/1179)
+ - Fix helix test issues. [(#1177)](https://github.com/linkedin/ambry/pull/1177)
+ - Added HelixPopulateTool and tests. [(#1176)](https://github.com/linkedin/ambry/pull/1176)
+ - Stitched blobs support different sized component blobs [(#1175)](https://github.com/linkedin/ambry/pull/1175)
+ - Introducing partition-level histogram into adaptive tracker [(#1174)](https://github.com/linkedin/ambry/pull/1174)
+ - Exclude timed out response from adaptive tracker's histogram [(#1173)](https://github.com/linkedin/ambry/pull/1173)
+ - Add logs in CompositeClusterManager to debug writable partition mismatch [(#1172)](https://github.com/linkedin/ambry/pull/1172)
+ - Introduce HelixVcrCluster to CloudBackupManager and refactor ReplicationEngine and ReplicaThread. [(#1171)](https://github.com/linkedin/ambry/pull/1171)
+ - Minor fixes in IOException catch and metrics registry [(#1170)](https://github.com/linkedin/ambry/pull/1170)
+ - Fix to correct #1165. [(#1169)](https://github.com/linkedin/ambry/pull/1169)
+ - Fix NullPointerException and 'no more capacity' issues in blob store [(#1168)](https://github.com/linkedin/ambry/pull/1168)
+ - Cloud tokens [(#1166)](https://github.com/linkedin/ambry/pull/1166)
+ - Blobs get TTL upload should be uploaded to Cloud. [(#1165)](https://github.com/linkedin/ambry/pull/1165)
+ - Make CompositeClusterManager more robust to NPEs and other errors [(#1164)](https://github.com/linkedin/ambry/pull/1164)
+ - Avoid unnecessary round trips to Azure when uploading blobs [(#1163)](https://github.com/linkedin/ambry/pull/1163)
+ - Fixing the intermittent Helix tool test failure [(#1162)](https://github.com/linkedin/ambry/pull/1162)
+ - Introduce container metrics [(#1161)](https://github.com/linkedin/ambry/pull/1161)
+ - Add more error message to help debug invalid offset [(#1160)](https://github.com/linkedin/ambry/pull/1160)
+ - Refactor operation tracker ctor and introduce custom percentiles [(#1159)](https://github.com/linkedin/ambry/pull/1159)
+ - Add HelixVcrCluster and HelixVcrClusterFactory.  [(#1158)](https://github.com/linkedin/ambry/pull/1158)
+ - Misc minor fixes in Helix tool, ReplicationEngine and Composite Manager [(#1157)](https://github.com/linkedin/ambry/pull/1157)
+ - Create ZkServerWrapper to speed up test. [(#1156)](https://github.com/linkedin/ambry/pull/1156)
+ -  Set network proxy in config rather than jvm args [(#1155)](https://github.com/linkedin/ambry/pull/1155)
+ - Combined cloud blob crypto service [(#1154)](https://github.com/linkedin/ambry/pull/1154)
+ - Provide option to use GetBlobOperation for BlobInfo [(#1153)](https://github.com/linkedin/ambry/pull/1153)
+ - Avoid calling clusterMap.getReplicas() in VCR mode. [(#1152)](https://github.com/linkedin/ambry/pull/1152)
+ - Add support for cluster name in request URI [(#1151)](https://github.com/linkedin/ambry/pull/1151)
+ - Introduce (un)satisfied request metrics to better evaluate availability [(#1150)](https://github.com/linkedin/ambry/pull/1150)
+ - Add metrics for AzureCloudDestination [(#1149)](https://github.com/linkedin/ambry/pull/1149)
+ - Add VirtualReplicatorClusterFactory and refactor endToEndCloudBackupTest SSL config. [(#1148)](https://github.com/linkedin/ambry/pull/1148)
+ - Fix intermittent index test failure [(#1146)](https://github.com/linkedin/ambry/pull/1146)
+ - Disable bucketing test temporarily [(#1145)](https://github.com/linkedin/ambry/pull/1145)
+ - Fix server startup failure due to invalid stats type [(#1143)](https://github.com/linkedin/ambry/pull/1143)
+ - Add VCRServer, StaticVCRCluster and tests [(#1142)](https://github.com/linkedin/ambry/pull/1142)
+ - Fix hostname mismatch issue in test. [(#1141)](https://github.com/linkedin/ambry/pull/1141)
+ - Add CloudBackupManger Implementation. [(#1140)](https://github.com/linkedin/ambry/pull/1140)
+ - Add CloudDestinationFactory to pass to CloudBackupManager [(#1139)](https://github.com/linkedin/ambry/pull/1139)
+ - Refactor VirtualReplicatorClusterMap to VirtualReplicatorCluster. [(#1137)](https://github.com/linkedin/ambry/pull/1137)
+ - Introduce CloudDataNode and CloudReplica [(#1136)](https://github.com/linkedin/ambry/pull/1136)
+ - Stats-related changes in aggregation tool and health report [(#1135)](https://github.com/linkedin/ambry/pull/1135)
+ - Refactor ReplicationManager and Introduce VirtualReplicatorCluster interface. [(#1134)](https://github.com/linkedin/ambry/pull/1134)
+ - Azure Backup: Write blob metadata into Azure CosmosDB [(#1133)](https://github.com/linkedin/ambry/pull/1133)
+ - Upgrade helix to 0.8.3 [(#1131)](https://github.com/linkedin/ambry/pull/1131)
+ - Support to pass externalAssetTag from HTTP header to NotificationSystem. [(#1130)](https://github.com/linkedin/ambry/pull/1130)
+ - Cloud blob store [(#1129)](https://github.com/linkedin/ambry/pull/1129)
+ - Introduce request handlers for account metadata [(#1126)](https://github.com/linkedin/ambry/pull/1126)
+ - Supporting cluster wide stats aggregation for partition class [(#1125)](https://github.com/linkedin/ambry/pull/1125)
+ - Added isBackedUp option for Container objects [(#1124)](https://github.com/linkedin/ambry/pull/1124)
+ - Avoid returning 416 when range end past blob [(#1123)](https://github.com/linkedin/ambry/pull/1123)
+ - Pass IdSigningService into SecurityServiceFactory [(#1120)](https://github.com/linkedin/ambry/pull/1120)
+ - Introducing secure path validation in Container [(#1119)](https://github.com/linkedin/ambry/pull/1119)
+ - Allow NettyServer to use its own ssl impl [(#1117)](https://github.com/linkedin/ambry/pull/1117)
+ - Make Bootstrap tool use Helix Cluster Manager for validation [(#1116)](https://github.com/linkedin/ambry/pull/1116)
+ - Introducing AmbryStatsReport to support multiple types of stats [(#1115)](https://github.com/linkedin/ambry/pull/1115)
+ - Fix size calculation in serializeString [(#1114)](https://github.com/linkedin/ambry/pull/1114)
+ - Address review comments on #1109 [(#1111)](https://github.com/linkedin/ambry/pull/1111)
+ - Add edit functionality to AccountUpdateTool [(#1110)](https://github.com/linkedin/ambry/pull/1110)
+ - Support for raw mode in GetBlobOptions [(#1109)](https://github.com/linkedin/ambry/pull/1109)
+ - Updating format version for Delete records [(#1108)](https://github.com/linkedin/ambry/pull/1108)
+ - Dump index tool fixes [(#1106)](https://github.com/linkedin/ambry/pull/1106)
+ - Warp data as many as possible in SSLTranmission#write(ByteBuffer) [(#1105)](https://github.com/linkedin/ambry/pull/1105)
+ - Merge recent kafka changes into SSLTransmission [(#1104)](https://github.com/linkedin/ambry/pull/1104)
+ - Make cluster manager initialization more resilient [(#1103)](https://github.com/linkedin/ambry/pull/1103)
+ - Two harmless changes for test and perf tuning. [(#1102)](https://github.com/linkedin/ambry/pull/1102)
+ - Populate correct blob size on getBlobInfo requests [(#1101)](https://github.com/linkedin/ambry/pull/1101)
+ - Changed BlobIdTransformer to enforce correct BlobIdProperty size for composite blobs [(#1100)](https://github.com/linkedin/ambry/pull/1100)
+ - Override BlobProperties blob size with the size field in metadata content [(#1099)](https://github.com/linkedin/ambry/pull/1099)
+ - Extract stitch request serde code [(#1098)](https://github.com/linkedin/ambry/pull/1098)
+ - Add metric to track number of SSL handshaking connections [(#1096)](https://github.com/linkedin/ambry/pull/1096)
+ - Add config for selecting PRNG algorithm in JdkSslFactory [(#1095)](https://github.com/linkedin/ambry/pull/1095)
+ - BlobIdTransformer now will transform the listed datachunk IDs in a metadata chunk [(#1094)](https://github.com/linkedin/ambry/pull/1094)
+ - Adding a container config for a whitelist of content types [(#1092)](https://github.com/linkedin/ambry/pull/1092)
+ - Changing impl of keeping sealed index segs in mem [(#1091)](https://github.com/linkedin/ambry/pull/1091)
+ - Granular (colo-level) update support in the Helix tool [(#1090)](https://github.com/linkedin/ambry/pull/1090)
+ - Improve CopyingAsyncWritableChannel for prod use [(#1088)](https://github.com/linkedin/ambry/pull/1088)
+ - [stitched uploads] Support stitch API in frontend [(#1087)](https://github.com/linkedin/ambry/pull/1087)
+ - Fix arg bug in AccountUpdateTool [(#1086)](https://github.com/linkedin/ambry/pull/1086)
+ - Adding tests to verify replication with different versions of BlobId behaves correctly [(#1085)](https://github.com/linkedin/ambry/pull/1085)
+ - Make cross-colo listening optional within Helix ClusterManager [(#1084)](https://github.com/linkedin/ambry/pull/1084)
+ - Introduce QuotaManager for rest requests. [(#1083)](https://github.com/linkedin/ambry/pull/1083)
+ - Make StaticClusterManager handle Replica_Unavailable server error [(#1082)](https://github.com/linkedin/ambry/pull/1082)
+ - [stitched uploads] Implement Router.stitchBlob() [(#1081)](https://github.com/linkedin/ambry/pull/1081)
+ - Deduplicate list of IDs received for GET [(#1080)](https://github.com/linkedin/ambry/pull/1080)
+ - Save local backup when using AccountUpdateTool [(#1079)](https://github.com/linkedin/ambry/pull/1079)
+ - Add more debug messages to catch bug related to SimpleOperationTracker. [(#1078)](https://github.com/linkedin/ambry/pull/1078)
+ - Fixing some config variables and a log message [(#1077)](https://github.com/linkedin/ambry/pull/1077)
+ - Use try-finally idiom with locks correctly [(#1076)](https://github.com/linkedin/ambry/pull/1076)
+ - Cancel scheduled persistor task when shutting down BlobStore [(#1075)](https://github.com/linkedin/ambry/pull/1075)
+ - Improving DumpIndexTool to detect crafted IDs and duplicates across keys if required [(#1074)](https://github.com/linkedin/ambry/pull/1074)
+ - Define Comparator at class level for certain classes that do not. [(#1073)](https://github.com/linkedin/ambry/pull/1073)
+ - Ensure MessageInfo deleted flag is set correctly for deleted messages [(#1072)](https://github.com/linkedin/ambry/pull/1072)
+ - Reporting extra dirs on disk [(#1071)](https://github.com/linkedin/ambry/pull/1071)
+ - Sending BlobInfo headers on getBlob() [(#1070)](https://github.com/linkedin/ambry/pull/1070)
+ - [Helix cluster manager] Nodes should initialize even if there are ZK Connectivity problems [(#1069)](https://github.com/linkedin/ambry/issues/1069)
+ - Fixing a bug in the replication metadata response logging [(#1067)](https://github.com/linkedin/ambry/pull/1067)
+ - Adding support at the frontend to get clustermap state [(#1066)](https://github.com/linkedin/ambry/pull/1066)
+ - Adding a method (and impls) to get a snapshot of the ClusterMap [(#1065)](https://github.com/linkedin/ambry/pull/1065)
+ - Disable router GetBlobOperation test involving Encryption [(#1064)](https://github.com/linkedin/ambry/pull/1064)
+ - Intermittent error in Router Tests [(#1063)](https://github.com/linkedin/ambry/issues/1063)
+ - Supporting getting specified types of stats report in BlobStoreStats [(#1062)](https://github.com/linkedin/ambry/pull/1062)
+ - Make replication GetRequest fetch deleted and expired blobs [(#1060)](https://github.com/linkedin/ambry/pull/1060)
+ - Reducing logging size + metrics for size tracking for metadata response [(#1059)](https://github.com/linkedin/ambry/pull/1059)
+ - Make SecurityService.postProcessRequest call async [(#1058)](https://github.com/linkedin/ambry/pull/1058)
+ - [Move Replica] Enable StatsManager to dynamically add/remove store [(#1057)](https://github.com/linkedin/ambry/pull/1057)
+ - Separating unconditional throttle cfg b/w inter & intra dc replica threads [(#1056)](https://github.com/linkedin/ambry/pull/1056)
+ - Separate throttling control for remote and local replication   [(#1055)](https://github.com/linkedin/ambry/issues/1055)
+ - Ignore dynamic fields when comparing InstanceConfigs [(#1053)](https://github.com/linkedin/ambry/pull/1053)
+ - Introduce shorter blob ID (V6) [(#1051)](https://github.com/linkedin/ambry/pull/1051)
+ - Making TTL required true by default for containers [(#1050)](https://github.com/linkedin/ambry/pull/1050)
+ - Temporarily suppress logging of replication messages [(#1049)](https://github.com/linkedin/ambry/pull/1049)
+ - Adding metrics and logging for replica thread throttling [(#1045)](https://github.com/linkedin/ambry/pull/1045)
+ - Keep track of error occurred instances during stats aggregation [(#1044)](https://github.com/linkedin/ambry/pull/1044)
+ - Set default replication throttling sleep configs to 0 [(#1043)](https://github.com/linkedin/ambry/pull/1043)
+ - Preserve CRCs in messages when they are transformed during replication [(#1042)](https://github.com/linkedin/ambry/pull/1042)
+ - Add error message in clusterwide stats aggregation [(#1041)](https://github.com/linkedin/ambry/pull/1041)
+ - Attach tracking info to frontend responses [(#1040)](https://github.com/linkedin/ambry/pull/1040)
+ - Make server detect Disk_Unavailable correctly [(#1039)](https://github.com/linkedin/ambry/pull/1039)
+ - Make router handle Replica_Unavailable properly [(#1038)](https://github.com/linkedin/ambry/pull/1038)
+ - Fixing a bug with upgrade tool-partition class interaction [(#1037)](https://github.com/linkedin/ambry/pull/1037)
+ - StoreCopier now warms up transformer i.e. allows it to invoke batched… [(#1035)](https://github.com/linkedin/ambry/pull/1035)
+ - Add support for xid in the bootstrap tool [(#1033)](https://github.com/linkedin/ambry/pull/1033)
+ - Enhance frontend config to allow flexible upload and download endpoints for signing [(#1032)](https://github.com/linkedin/ambry/pull/1032)
+ - Adding bootstrap functionality to Journal [(#1029)](https://github.com/linkedin/ambry/pull/1029)
+ - Fix the random NPE in xidTest [(#1028)](https://github.com/linkedin/ambry/pull/1028)
+ - Fixing bugs with TTL updates [(#1027)](https://github.com/linkedin/ambry/pull/1027)
+ - Prevent busy polling in replication thread [(#1026)](https://github.com/linkedin/ambry/pull/1026)
+ - Catch disk I/O errors and dynamically shutdown BlobStore [(#1025)](https://github.com/linkedin/ambry/pull/1025)
+ - Increase timeout to pass test. [(#1024)](https://github.com/linkedin/ambry/pull/1024)
+ - Add support for xids in the cluster manager [(#1023)](https://github.com/linkedin/ambry/pull/1023)
+ - [stitched uploads] Support individual datachunk upload [(#1022)](https://github.com/linkedin/ambry/pull/1022)
+ - Add Account and Container to NotificationSystem [(#1021)](https://github.com/linkedin/ambry/pull/1021)
+ - Add V5 support to BlobID.getLongForm() [(#1020)](https://github.com/linkedin/ambry/pull/1020)
+ - Adding support for TTL updates in StoreCopier [(#1019)](https://github.com/linkedin/ambry/pull/1019)
+ - Adding a config for providing a default GetOption at the frontend [(#1018)](https://github.com/linkedin/ambry/pull/1018)
+ - Adding ttl required setting to container config [(#1017)](https://github.com/linkedin/ambry/pull/1017)
+ - Add accountName/containerName to NotificationSystem [(#1016)](https://github.com/linkedin/ambry/pull/1016)
+ - Use BlobId data type to optimize Delete and UpdateTTL operations [(#1015)](https://github.com/linkedin/ambry/pull/1015)
+ - Frontend connections warm up in booting up. [(#1014)](https://github.com/linkedin/ambry/pull/1014)
+ - Fixed logs in ambry-tools, ReplicaThread bug [(#1013)](https://github.com/linkedin/ambry/pull/1013)
+ - Supporting TTL updates in BlobStoreStats [(#1011)](https://github.com/linkedin/ambry/pull/1011)
+ - Adding Router integration tests for TTL update [(#1010)](https://github.com/linkedin/ambry/pull/1010)
+ - Adding server integration tests for TTL update [(#1009)](https://github.com/linkedin/ambry/pull/1009)
+ - Added deprecated blob count logging in ConsistencyCheckerTool [(#1008)](https://github.com/linkedin/ambry/pull/1008)
+ - Fix a bug of AUTH_FAILURE in RouterServerTestFramework [(#1006)](https://github.com/linkedin/ambry/pull/1006)
+ - Fixing bugs with some GET and TTL update paths [(#1005)](https://github.com/linkedin/ambry/pull/1005)
+ - Instantiate Notifier in HelixAccountServiceFactory ctor [(#1003)](https://github.com/linkedin/ambry/pull/1003)
+ - Map Server Blob_Authorization_Failure to Router. [(#1002)](https://github.com/linkedin/ambry/pull/1002)
+ - Fix bug in appendFrom [(#1000)](https://github.com/linkedin/ambry/pull/1000)
+ - Some fixes after commons upgraded [(#999)](https://github.com/linkedin/ambry/pull/999)
+ - Do larger IO for putRequest [(#998)](https://github.com/linkedin/ambry/pull/998)
+ - Supporting replication of TTL updates [(#997)](https://github.com/linkedin/ambry/pull/997)
+ - InputStream implementations should honor contract. [(#995)](https://github.com/linkedin/ambry/pull/995)
+ - Adding support for TTL update in AmbryRequests [(#993)](https://github.com/linkedin/ambry/pull/993)
+ - Increasing timeout and allowed mem usage for integration tests [(#992)](https://github.com/linkedin/ambry/pull/992)
+ - Provide the option to use direct IO in compaction. [(#991)](https://github.com/linkedin/ambry/pull/991)
+ - Fix NullPointerException during Stats Aggregation [(#990)](https://github.com/linkedin/ambry/pull/990)
+ - Added StoreKeyConverter support to replication [(#989)](https://github.com/linkedin/ambry/pull/989)
+ - Introducing "Replica_Unavailable" as a new type of ServerErrorCode [(#988)](https://github.com/linkedin/ambry/pull/988)
+ - Providing a configuration for keeping the index in memory [(#987)](https://github.com/linkedin/ambry/pull/987)
+ - Handling a recovery case that wasn't handled before [(#986)](https://github.com/linkedin/ambry/pull/986)
+ - Introduce PutBlobOptions in router API [(#983)](https://github.com/linkedin/ambry/pull/983)
+ - Changed StoreKeyConverter interface to support caching [(#982)](https://github.com/linkedin/ambry/pull/982)
+ - Added BlobIdTransformer and test [(#980)](https://github.com/linkedin/ambry/pull/980)
+ - Changes to BlobStoreCompactor to handle TTL update records [(#978)](https://github.com/linkedin/ambry/pull/978)
+ - Changes to Store to support TTL updates [(#977)](https://github.com/linkedin/ambry/pull/977)
+ - Simplify bloom filter generation when initializing IndexSegment [(#976)](https://github.com/linkedin/ambry/pull/976)
+ - StoreKeyConverter returned map can now have null values... [(#975)](https://github.com/linkedin/ambry/pull/975)
+ - Add bits for BlobDataType in BlobId flag. [(#973)](https://github.com/linkedin/ambry/pull/973)
+ - Add support for message transformation during replication [(#970)](https://github.com/linkedin/ambry/pull/970)
+ - Generate bloom file and persist when initializing existing IndexSegment [(#969)](https://github.com/linkedin/ambry/pull/969)
+ - Add metrics for indexSegments and replication get request. [(#968)](https://github.com/linkedin/ambry/pull/968)
+ - Adding new server error codes [(#967)](https://github.com/linkedin/ambry/pull/967)
+ - Adding support for notifications for replication of TTL updates [(#966)](https://github.com/linkedin/ambry/pull/966)
+ - Adding support for partition override as rollback plan [(#965)](https://github.com/linkedin/ambry/pull/965)
+ - Adding some debugging messages to help debug a build failure [(#964)](https://github.com/linkedin/ambry/pull/964)
+ - Do storeKey conversion for keys in GET/DELETE requests [(#961)](https://github.com/linkedin/ambry/pull/961)
+ - Added equals() impl for MessageInfo [(#960)](https://github.com/linkedin/ambry/pull/960)
+ - Fix for replication bug with empty store [(#959)](https://github.com/linkedin/ambry/pull/959)
+ - Supporting TTL update at the frontend [(#958)](https://github.com/linkedin/ambry/pull/958)
+ - Separate hard delete rate from compaction rate. [(#957)](https://github.com/linkedin/ambry/pull/957)
+ - Add an option for NettyPerfClient to read blobIds in file.  [(#956)](https://github.com/linkedin/ambry/pull/956)
+ - Max size for getIndexEntries() should be Long.MAX_VALUE [(#955)](https://github.com/linkedin/ambry/pull/955)
+ - Improve build performance, minor fixes [(#954)](https://github.com/linkedin/ambry/pull/954)
+ - StoreKeyConverter in ambry-tools, changed StoreKeyConverter interface slightly [(#953)](https://github.com/linkedin/ambry/pull/953)
+ - Refactor postBlob code into handler class [(#951)](https://github.com/linkedin/ambry/pull/951)
+ - Compaction read buffer size can be same as clean up rate [(#950)](https://github.com/linkedin/ambry/pull/950)
+ - store.compaction.min.buffer.size minimum value can be 0 [(#949)](https://github.com/linkedin/ambry/pull/949)
+ - Disable compaction bundle read if storeCompactionMinBufferSize is 0 [(#948)](https://github.com/linkedin/ambry/pull/948)
+ - Add metrics for compaction bundle read. [(#947)](https://github.com/linkedin/ambry/pull/947)
+ - Made ctors for MessageFormatInputStream test impls public [(#946)](https://github.com/linkedin/ambry/pull/946)
+ - Public test input streams [(#945)](https://github.com/linkedin/ambry/pull/945)
+ - Adding TTL update support at the Router [(#944)](https://github.com/linkedin/ambry/pull/944)
+ - Fixes and enhancements to MessageInfoAndMetadataListSerde [(#943)](https://github.com/linkedin/ambry/pull/943)
+ - Adding ttl update to the notification system [(#942)](https://github.com/linkedin/ambry/pull/942)
+ - Cleanup replication code [(#939)](https://github.com/linkedin/ambry/pull/939)
+ - Wired in StoreKeyConverterFactory [(#938)](https://github.com/linkedin/ambry/pull/938)
+ - Updating PersistentIndex to handle TTL update entries [(#937)](https://github.com/linkedin/ambry/pull/937)
+ - Changed ctor for StoreKeyConverterFactoryImpl to match common pattern… [(#936)](https://github.com/linkedin/ambry/pull/936)
+ - Added string build method for StoreKeyFactory interface [(#935)](https://github.com/linkedin/ambry/pull/935)
+ - Using the repl policy in container to choose partition [(#934)](https://github.com/linkedin/ambry/pull/934)
+ - StoreKeyConverter default implementations [(#933)](https://github.com/linkedin/ambry/pull/933)
+ - MessageFormatInputStream does not conform with InputStream [(#932)](https://github.com/linkedin/ambry/issues/932)
+ - Introduce BufferedInputStream for non MessageFormatFlags.All cases. [(#931)](https://github.com/linkedin/ambry/pull/931)
+ - Do bundled read in compaction copy phase. [(#930)](https://github.com/linkedin/ambry/pull/930)
+ - Introducing "STOPPED" replicas list into Helix InstanceConfig [(#929)](https://github.com/linkedin/ambry/pull/929)
+ - Add all replicas to OperationTracker if originating DC is unknown [(#928)](https://github.com/linkedin/ambry/pull/928)
+ - Resolves possible race conditions for PartitionsState on init [(#927)](https://github.com/linkedin/ambry/pull/927)
+ - Adding a ttlUpdated field in MessageInfo [(#926)](https://github.com/linkedin/ambry/pull/926)
+ - Added IOException to Transformer interface [(#922)](https://github.com/linkedin/ambry/pull/922)
+ - Remove subMap to flattern Stats Report [(#921)](https://github.com/linkedin/ambry/pull/921)
+ - Allowing for multiple values for the same key in IndexSegment [(#920)](https://github.com/linkedin/ambry/pull/920)
+ - Adding replication policy to container config [(#919)](https://github.com/linkedin/ambry/pull/919)
+ - Updates to Helix Cluster Map Update tool [(#918)](https://github.com/linkedin/ambry/pull/918)
+ - Fix statsBasedCompaction comparator bug [(#917)](https://github.com/linkedin/ambry/pull/917)
+ - Fix PartitionManager by adding the serverPropsFilePath option (#692) [(#914)](https://github.com/linkedin/ambry/pull/914)
+ - Add option to add customized http header for NettyPerfClient. [(#912)](https://github.com/linkedin/ambry/pull/912)
+ - Added StoreKeyConverter and StoreKeyConverterFactory interfaces (#910) [(#911)](https://github.com/linkedin/ambry/pull/911)
+ - Adding StoreKeyConverter and StoreKeyConverterFactory interfaces [(#910)](https://github.com/linkedin/ambry/issues/910)
+ - Add optional hint to include exception message in response [(#909)](https://github.com/linkedin/ambry/pull/909)
+ - Modify selector metrics to remove timeout cases. [(#908)](https://github.com/linkedin/ambry/pull/908)
+ - Add optional native SSL support [(#907)](https://github.com/linkedin/ambry/pull/907)
+ - Initialize HelixAdmin in constructor and re-assign it during participation [(#906)](https://github.com/linkedin/ambry/pull/906)
+ - Add logs to track Seal/Unseal BlobStore [(#904)](https://github.com/linkedin/ambry/pull/904)
+ - Adding request/response protocol for TTL updates [(#903)](https://github.com/linkedin/ambry/pull/903)
+ - Introducing the concept of "partition class" [(#902)](https://github.com/linkedin/ambry/pull/902)
+ - Improve Helix Update tool [(#901)](https://github.com/linkedin/ambry/pull/901)
+ - Blob_Id_V3 encrypted bit decommission. [(#899)](https://github.com/linkedin/ambry/pull/899)
+ - Introduce BLOB_ID_V4 and routerBlobidCurrentVersion is still 3. [(#898)](https://github.com/linkedin/ambry/pull/898)
+ - Introducing a UpdateRecord [(#897)](https://github.com/linkedin/ambry/pull/897)
+ - Explicitly ignore dynamic new node additions [(#896)](https://github.com/linkedin/ambry/pull/896)
+ - Change rackId field to a string [(#895)](https://github.com/linkedin/ambry/pull/895)
+ - Adding a message format for TTL update [(#894)](https://github.com/linkedin/ambry/pull/894)
+ - Add Conditional Delete in frontend [(#893)](https://github.com/linkedin/ambry/pull/893)
+ - Zero copy alternative: data pre-fetch. [(#892)](https://github.com/linkedin/ambry/pull/892)
+ - fix metric bug for get/put processingTimeBySize [(#891)](https://github.com/linkedin/ambry/pull/891)
+ - Add a ServerAdminTool to control BlobStore [(#889)](https://github.com/linkedin/ambry/pull/889)
+ - Making the starts with check for user metadata case insensitive [(#887)](https://github.com/linkedin/ambry/pull/887)
+ - Fixes a bug and removes/changes some configs [(#885)](https://github.com/linkedin/ambry/pull/885)
+ - Add start BlobStore API on server side [(#884)](https://github.com/linkedin/ambry/pull/884)
+ - Skip accountId and containerId check if blobId version is 1. [(#881)](https://github.com/linkedin/ambry/pull/881)
+ - Introduce Stop BlobStore API on server side [(#880)](https://github.com/linkedin/ambry/pull/880)
+ - Disable compaction on given store in CompactionManager [(#879)](https://github.com/linkedin/ambry/pull/879)
+ - Prioritize error code in GET/PUT operations [(#877)](https://github.com/linkedin/ambry/pull/877)
+ - Add metrics to track blob access not in local datacenter [(#876)](https://github.com/linkedin/ambry/pull/876)
+ - Separating out 500s into 500, 503 and 507 [(#873)](https://github.com/linkedin/ambry/pull/873)
+ - Set storeValidateAuthorization default value false. (#871) [(#872)](https://github.com/linkedin/ambry/pull/872)
+ - Fixing a bug with ensuring account and container injected [(#870)](https://github.com/linkedin/ambry/pull/870)
+ - Fixing a mem leak in DiskReformatter [(#869)](https://github.com/linkedin/ambry/pull/869)
+ - Map store Authorization_Failure to HTTP Forbidden. (#860) [(#867)](https://github.com/linkedin/ambry/pull/867)
+ - Expose static method for getting blob ID version [(#866)](https://github.com/linkedin/ambry/pull/866)
+ - Making more classes required for SecurityServiceFactory public [(#865)](https://github.com/linkedin/ambry/pull/865)
+ - Removed untimed waits and fixing a test [(#864)](https://github.com/linkedin/ambry/pull/864)
+ - Making the constructor of AcctAndContInj protected [(#863)](https://github.com/linkedin/ambry/pull/863)
+ - Sending a clustermap and accntInjector to the SecurityServiceFactory [(#862)](https://github.com/linkedin/ambry/pull/862)
+ - Add SSL handshake and first byte metrics [(#861)](https://github.com/linkedin/ambry/pull/861)
+ - Fixing a metric name in Non Blocking Router [(#859)](https://github.com/linkedin/ambry/pull/859)
+ - Validate accountId and containerId in store server. [(#857)](https://github.com/linkedin/ambry/pull/857)
+ - Adding some more logging in tests to debug #855 [(#856)](https://github.com/linkedin/ambry/pull/856)
+ - Exposing encrypted info about blob in response headers [(#854)](https://github.com/linkedin/ambry/pull/854)
+ - Counting aborts due to inactive channels as client disconnects [(#853)](https://github.com/linkedin/ambry/pull/853)
+ - Ensure response body closed on SecurityService::processResponse errors. [(#849)](https://github.com/linkedin/ambry/pull/849)
+ - Changing store options when fetching blobs in StoreCopier [(#848)](https://github.com/linkedin/ambry/pull/848)
+ - Adding check for instanceConfig == null to setSealedReplicas [(#847)](https://github.com/linkedin/ambry/pull/847)
+ - Fix AccountUpdateTool test case [(#846)](https://github.com/linkedin/ambry/pull/846)
+ - Updating DiskReformatter to copy partition files to scratch disk in atomic fashion [(#844)](https://github.com/linkedin/ambry/pull/844)
+ - Log thread death reasons instead of printing [(#843)](https://github.com/linkedin/ambry/pull/843)
+ - Adding some info to a test failure [(#842)](https://github.com/linkedin/ambry/pull/842)
+ - Set default container json version to 2 [(#841)](https://github.com/linkedin/ambry/pull/841)
+ - BlobId getVersion() should be public to support tools (#839) [(#840)](https://github.com/linkedin/ambry/pull/840)
+ - Add support for parsing BlobId preamble without a clustermap [(#837)](https://github.com/linkedin/ambry/pull/837)
+ - Fix an incorrect default in RouterConfig documentation [(#830)](https://github.com/linkedin/ambry/pull/830)
+ - Add support for BlobId crafting [(#829)](https://github.com/linkedin/ambry/pull/829)
+ - Select remote datacenter when not found locally [(#827)](https://github.com/linkedin/ambry/pull/827)
+ - Treating one more exception message as a client disconnect [(#824)](https://github.com/linkedin/ambry/pull/824)
+ - Adding encrypted info in the BlobId flag [(#822)](https://github.com/linkedin/ambry/pull/822)
+ - Adding CryptoJobMetrics and Tracker to track detailed crypto job metrics [(#821)](https://github.com/linkedin/ambry/pull/821)
+ - Add account versioning and local backup on updates [(#818)](https://github.com/linkedin/ambry/pull/818)
+ - Adding encryption key comparison in BlobValidator [(#817)](https://github.com/linkedin/ambry/pull/817)
+ - Adding metrics for Encryption [(#816)](https://github.com/linkedin/ambry/pull/816)
+ - Adding a required config to the examples [(#815)](https://github.com/linkedin/ambry/pull/815)
+ - Frontend not starting with QuickStart Description: Missing kms.default.container.key [(#814)](https://github.com/linkedin/ambry/issues/814)
+ - Adding support to NettyPerfCient to target account and container [(#813)](https://github.com/linkedin/ambry/pull/813)
+ - Add AccountUpdateTool option to specify container version [(#812)](https://github.com/linkedin/ambry/pull/812)
+ - Stop logging client cert when client auth is not required [(#810)](https://github.com/linkedin/ambry/pull/810)
+ - Disabling another stats test that fails intermittently [(#808)](https://github.com/linkedin/ambry/pull/808)
+ - Adding a preprocess step in security service [(#807)](https://github.com/linkedin/ambry/pull/807)
+ - Config for limiting size of multipart POST requests [(#806)](https://github.com/linkedin/ambry/pull/806)
+ - Fixing a bug with injection of metrics [(#805)](https://github.com/linkedin/ambry/pull/805)
+ - Adding support for OPTIONS [(#804)](https://github.com/linkedin/ambry/pull/804)
+ - Introduce BlobId V3 and the idea of native and crafted ids [(#803)](https://github.com/linkedin/ambry/pull/803)
+ - Problem with setting up HTTPS for ambry-frontend [(#802)](https://github.com/linkedin/ambry/issues/802)
+ - Adding encryption support to Router [(#801)](https://github.com/linkedin/ambry/pull/801)
+ - Enabling new HeaderFormat, BlobKeyRecord, GetResponse, ReplicaMetadata version [(#800)](https://github.com/linkedin/ambry/pull/800)
+ - Make account name matching error clearer. [(#798)](https://github.com/linkedin/ambry/pull/798)
+ - Add alloc/free time metrics to DiskSpaceAllocator [(#796)](https://github.com/linkedin/ambry/pull/796)
+ - Added option to disable reverse DNS lookups. [(#795)](https://github.com/linkedin/ambry/pull/795)
+ - Setting a valid datacenter ID in the blob ID [(#794)](https://github.com/linkedin/ambry/pull/794)
+ -  Added enable config for dynamic seal/unseal BlobStore [(#793)](https://github.com/linkedin/ambry/pull/793)
+ - Add read support for V2 container schema [(#792)](https://github.com/linkedin/ambry/pull/792)
+ - Tracking the age of a blob at its time of access [(#791)](https://github.com/linkedin/ambry/pull/791)
+ - Bumping up Helix version [(#789)](https://github.com/linkedin/ambry/pull/789)
+ - Adding the ability to create signed URLs [(#786)](https://github.com/linkedin/ambry/pull/786)
+ - Adding some more handling for recognizing client disconnects [(#785)](https://github.com/linkedin/ambry/pull/785)
+ - Add Message Format support for encryption [(#782)](https://github.com/linkedin/ambry/pull/782)
+ - Allows CatchupStatus req to spec num replicas that hv to be caught up [(#780)](https://github.com/linkedin/ambry/pull/780)
+ - BlobStore changes to support dynamic Read-Write/Read-Only change (#771) [(#779)](https://github.com/linkedin/ambry/pull/779)
+ - Counting client resets separately from actual internal errors [(#778)](https://github.com/linkedin/ambry/pull/778)
+ - Add tool to generate accounts for existing service IDs [(#777)](https://github.com/linkedin/ambry/pull/777)
+ - Fixing the index segment size check when writing PersistentIndex [(#776)](https://github.com/linkedin/ambry/pull/776)
+ - Fixing building UberJar [(#775)](https://github.com/linkedin/ambry/pull/775)
+ - Enabling PutRequestV4 [(#774)](https://github.com/linkedin/ambry/pull/774)
+ - Making sure ordering of tests does not matter for BlobStorage tests [(#773)](https://github.com/linkedin/ambry/pull/773)
+ - Ensuring that admin commands run only on partitions on the node [(#772)](https://github.com/linkedin/ambry/pull/772)
+ - Added 'setReplicaSealedState' to ClusterParticipant (#737) [(#771)](https://github.com/linkedin/ambry/pull/771)
+ - Fixing KMSFactory and CryptoServiceFacotry's constructor [(#770)](https://github.com/linkedin/ambry/pull/770)
+ - Aggregating most store metrics across all stores [(#769)](https://github.com/linkedin/ambry/pull/769)
+ - Fixing a bug with the use of MetricRegistry [(#768)](https://github.com/linkedin/ambry/pull/768)
+ - Make MockSSLSession constructor public [(#764)](https://github.com/linkedin/ambry/pull/764)
+ - Adding account and container names to BlobInfo and HEAD response [(#763)](https://github.com/linkedin/ambry/pull/763)
+ - Add AccessDenied error code and ambry-error-code header [(#762)](https://github.com/linkedin/ambry/pull/762)
+ - Ensure that router logs system health errors [(#761)](https://github.com/linkedin/ambry/pull/761)
+ - Adding CryptoJobHandler to assist in encryting and decrypting content [(#760)](https://github.com/linkedin/ambry/pull/760)
+ - Add support for encryption keys in the protocol [(#759)](https://github.com/linkedin/ambry/pull/759)
+ - Ensuring that the private blob properties matches that of the container [(#758)](https://github.com/linkedin/ambry/pull/758)
+ - Improving DumpIndexTool - can be used as both standalone tool or library [(#757)](https://github.com/linkedin/ambry/pull/757)
+ - Adding a tool that ensures a storage node's peers have caught up [(#754)](https://github.com/linkedin/ambry/pull/754)
+ - Changing behavior of ReplControl for empty origin list input [(#753)](https://github.com/linkedin/ambry/pull/753)
+ - Fix the test failure in serverTest. [(#752)](https://github.com/linkedin/ambry/pull/752)
+ - Change constructor for MockHelixAccountServiceFactory by default to use MockHelixPropertyStore [(#751)](https://github.com/linkedin/ambry/pull/751)
+ - Adding more fine grained percentage reporting [(#750)](https://github.com/linkedin/ambry/pull/750)
+ - Adding verification and logging to include accountId and containerId in tools [(#749)](https://github.com/linkedin/ambry/pull/749)
+ - Add blacklist for query parameters [(#748)](https://github.com/linkedin/ambry/pull/748)
+ - Fix race condition between notification and updating account. [(#745)](https://github.com/linkedin/ambry/pull/745)
+ - Adding support for log4j in tests [(#744)](https://github.com/linkedin/ambry/pull/744)
+ - Enable BlobId v2 write. [(#743)](https://github.com/linkedin/ambry/pull/743)
+ - Adds background thread to pull account updates from ZK [(#742)](https://github.com/linkedin/ambry/pull/742)
+ - Introduce an API to get catchup status of peers [(#741)](https://github.com/linkedin/ambry/pull/741)
+ - Renaming DefaultCompactionPolicy to StatsBasedCompactionPolicy [(#739)](https://github.com/linkedin/ambry/pull/739)
+ - Reflect changes in operation name in readme [(#736)](https://github.com/linkedin/ambry/pull/736)
+ - Adding a metric to track the number of bytes saved by compaction [(#735)](https://github.com/linkedin/ambry/pull/735)
+ - Fix NPE when building blobProperties without account and container [(#733)](https://github.com/linkedin/ambry/pull/733)
+ - Print partition ids when logging Put and Delete requests [(#732)](https://github.com/linkedin/ambry/pull/732)
+ - Makes notifier nullable for HelixAccountService [(#730)](https://github.com/linkedin/ambry/pull/730)
+ - Fix intermittent failure in HelixAccountServiceTest [(#729)](https://github.com/linkedin/ambry/pull/729)
+ - Enabling MessageInfoList V3 and DeleteMessageFormat V2 [(#728)](https://github.com/linkedin/ambry/pull/728)
+ - Moving a non-error in replication to trace logging [(#727)](https://github.com/linkedin/ambry/pull/727)
+ - fix a bug in accountUpdateTool [(#725)](https://github.com/linkedin/ambry/pull/725)
+ - Enable Blob props V2 and Delete Request V2 (write) [(#724)](https://github.com/linkedin/ambry/pull/724)
+ - Improves equal check for account and container [(#723)](https://github.com/linkedin/ambry/pull/723)
+ - Adds Listener for AccountService [(#722)](https://github.com/linkedin/ambry/pull/722)
+ - More unit test cases to ensure LogSegment ordering [(#721)](https://github.com/linkedin/ambry/pull/721)
+ - Adds better logging for HelixAccountService [(#718)](https://github.com/linkedin/ambry/pull/718)
+ - Introducing ability to control replication from certain DCs [(#717)](https://github.com/linkedin/ambry/pull/717)
+ - More sanity checks for compactor [(#714)](https://github.com/linkedin/ambry/pull/714)
+ - Improving the sanity check in BlobStoreCompactor [(#712)](https://github.com/linkedin/ambry/pull/712)
+ - Changing to compactAllPolicy because of a bug in stats [(#711)](https://github.com/linkedin/ambry/pull/711)
+ - Adding KeyManagementService and CryptoService interface and default impl [(#710)](https://github.com/linkedin/ambry/pull/710)
+ - Fixing a build failure due to runtime class dependencies [(#709)](https://github.com/linkedin/ambry/pull/709)
+ - Add wiring to pass AccountService to SecurityService [(#708)](https://github.com/linkedin/ambry/pull/708)
+ - Refactoring some tools [(#707)](https://github.com/linkedin/ambry/pull/707)
+ - Revert "Removes InMemoryUnknownAccountService" [(#706)](https://github.com/linkedin/ambry/pull/706)
+ - Removes InMemoryUnknownAccountService [(#705)](https://github.com/linkedin/ambry/pull/705)
+ - Adding a tool that can copy data from one store to another [(#704)](https://github.com/linkedin/ambry/pull/704)
+ - Ensure that known data chunk deletions do not initiate background deletes [(#703)](https://github.com/linkedin/ambry/pull/703)
+ - Rewriting replication test to make it more concise [(#702)](https://github.com/linkedin/ambry/pull/702)
+ - Adds two default containers for UNKNOWN_ACCOUNT [(#701)](https://github.com/linkedin/ambry/pull/701)
+ - Use padding to support different key sizes in the same segment [(#698)](https://github.com/linkedin/ambry/pull/698)
+ - Integrates AccountService with Frontend. [(#697)](https://github.com/linkedin/ambry/pull/697)
+ - Add postProcessRequest to SecurityService [(#696)](https://github.com/linkedin/ambry/pull/696)
+ - Generates meaningful blob ids in InMemory router [(#695)](https://github.com/linkedin/ambry/pull/695)
+ - Adding an API to disable requests selectively at storage server [(#694)](https://github.com/linkedin/ambry/pull/694)
+ - Moves InMemoryRouter to router module. [(#693)](https://github.com/linkedin/ambry/pull/693)
+ - PartitionManager not working [(#692)](https://github.com/linkedin/ambry/issues/692)
+ - fix error message in Utils.preAllocateFileIfNeeded [(#691)](https://github.com/linkedin/ambry/pull/691)
+ - Introduces InMemoryUnknownAccountService [(#690)](https://github.com/linkedin/ambry/pull/690)
+ - Adds unknown account and container. [(#689)](https://github.com/linkedin/ambry/pull/689)
+ - Removing issuer/creator AccountId from BlobPropertiesV2 [(#688)](https://github.com/linkedin/ambry/pull/688)
+ - CLI tool to create or update accounts. [(#687)](https://github.com/linkedin/ambry/pull/687)
+ - Addressing comments from PR 606 (Cluster wide stats aggregation [(#686)](https://github.com/linkedin/ambry/pull/686)
+ - Make ContainerBlobsResource public [(#685)](https://github.com/linkedin/ambry/pull/685)
+ - Fix an incorrect assumption made by Helix Cluster Manager [(#684)](https://github.com/linkedin/ambry/pull/684)
+ - Adding more logging to threads in case of crashes [(#683)](https://github.com/linkedin/ambry/pull/683)
+ - Fixing logging in BlobStoreStats [(#682)](https://github.com/linkedin/ambry/pull/682)
+ - Moving admin functions to frontend [(#680)](https://github.com/linkedin/ambry/pull/680)
+ - Fixing rare condition test failure in MessageFormatRecordTest [(#678)](https://github.com/linkedin/ambry/pull/678)
+ - Fix a test failure [(#677)](https://github.com/linkedin/ambry/pull/677)
+ - Add AclService interfaces [(#676)](https://github.com/linkedin/ambry/pull/676)
+ - Adding more logging to StoreStats and CompactionPolicy [(#674)](https://github.com/linkedin/ambry/pull/674)
+ - Removes HelixPropertyStoreFactory [(#672)](https://github.com/linkedin/ambry/pull/672)
+ - Giving operation names public visibility [(#671)](https://github.com/linkedin/ambry/pull/671)
+ - Making some ServerAdminTool methods public [(#670)](https://github.com/linkedin/ambry/pull/670)
+ - Adds AccountService and AccountServiceFactory interfaces. [(#669)](https://github.com/linkedin/ambry/pull/669)
+ - commenting out a faulty test [(#665)](https://github.com/linkedin/ambry/pull/665)
+ - Adding codecov [(#664)](https://github.com/linkedin/ambry/pull/664)
+ - Unit test intermittently fails. [(#663)](https://github.com/linkedin/ambry/issues/663)
+ - Adding build and license badges [(#662)](https://github.com/linkedin/ambry/pull/662)
+ - Introduces AccountService. [(#661)](https://github.com/linkedin/ambry/pull/661)
+ - Adding travis-ci config [(#659)](https://github.com/linkedin/ambry/pull/659)
+ - Fixing server tests that were failing intermittently [(#658)](https://github.com/linkedin/ambry/pull/658)
+ - Adding more trace statements for router operations [(#657)](https://github.com/linkedin/ambry/pull/657)
+ - Disable a failing test [(#656)](https://github.com/linkedin/ambry/pull/656)
+ - Making modifications for Throttler to check rate on every call [(#654)](https://github.com/linkedin/ambry/pull/654)
+ - Use java TimeUnit enum instead of raw multiplication for time unit conversions (#597) [(#653)](https://github.com/linkedin/ambry/pull/653)
+ - Refactoring of tools [(#652)](https://github.com/linkedin/ambry/pull/652)
+ - Enable CRCs in the protocol [(#651)](https://github.com/linkedin/ambry/pull/651)
+ - Introducing new MessageInfoList version with AccountId, containerId and opTime [(#650)](https://github.com/linkedin/ambry/pull/650)
+ - 1. Adding new DeleteRecord V2 and DeleteRequest protocol V2 [(#649)](https://github.com/linkedin/ambry/pull/649)
+ - Adding new BlobProperties V2 with accountId and containerId [(#648)](https://github.com/linkedin/ambry/pull/648)
+ - Introduce DiskSpaceAllocator [(#647)](https://github.com/linkedin/ambry/pull/647)
+ - Blob id v2 [(#646)](https://github.com/linkedin/ambry/pull/646)
+ - Adding a config to selectively enable different compaction triggers [(#645)](https://github.com/linkedin/ambry/pull/645)
+ - Add support for dynamically updating partition sealed state. [(#644)](https://github.com/linkedin/ambry/pull/644)
+ - Additional speed up in cluster manager initialization [(#643)](https://github.com/linkedin/ambry/pull/643)
+ - Set Java 8 as the minimum supported JVM version [(#642)](https://github.com/linkedin/ambry/pull/642)
+ - Changing HardDeleter to use DiskIOScheduler instead of Throttler [(#641)](https://github.com/linkedin/ambry/pull/641)
+ - Speed up cluster manager initialization [(#640)](https://github.com/linkedin/ambry/pull/640)
+ - Storing the offset for delete check in compaction log [(#639)](https://github.com/linkedin/ambry/pull/639)
+ - Introducing support for getting peers of a given data node [(#638)](https://github.com/linkedin/ambry/pull/638)
+ - Avoid empty Get requests in replication [(#634)](https://github.com/linkedin/ambry/pull/634)
+ - Fix broken url to "Better Bloom Filter" paper [(#633)](https://github.com/linkedin/ambry/pull/633)
+ - Making some tests methods public/protected for building tools over Ambry [(#631)](https://github.com/linkedin/ambry/pull/631)
+ - Making StoreToolsMetric constructor public [(#630)](https://github.com/linkedin/ambry/pull/630)
+ - Introduces Notifier and TopicListener [(#629)](https://github.com/linkedin/ambry/pull/629)
+ - Inflates Account and Container from Json Metadata [(#628)](https://github.com/linkedin/ambry/pull/628)
+ - Adding some extra tests for the compactor [(#626)](https://github.com/linkedin/ambry/pull/626)
+ - Making some test methods and classes public for building tools on top of Ambry [(#625)](https://github.com/linkedin/ambry/pull/625)
+ - Introduces Account module. [(#624)](https://github.com/linkedin/ambry/pull/624)
+ - Exposing tests as separate jars [(#623)](https://github.com/linkedin/ambry/pull/623)
+ - 1. Adding log msgs in HardDeleter. 2. Fixing throttler in store tools [(#622)](https://github.com/linkedin/ambry/pull/622)
+ - Fix 3 lgtm.com alerts: do not test reference equality, fix int overflow [(#620)](https://github.com/linkedin/ambry/pull/620)
+ - Change Ambry open source code to support PUT method. [(#619)](https://github.com/linkedin/ambry/pull/619)
+ - Shutting down all stores in a disk in parallel [(#618)](https://github.com/linkedin/ambry/pull/618)
+ - Utility to verify compaction + fixes for bugs found [(#617)](https://github.com/linkedin/ambry/pull/617)
+ - Remove blob size requirement in the frontend [(#616)](https://github.com/linkedin/ambry/pull/616)
+ - Adding store metrics to track shutdown times [(#615)](https://github.com/linkedin/ambry/pull/615)
+ - Adding getAllPartitions() to ClusterMap [(#614)](https://github.com/linkedin/ambry/pull/614)
+ - Fixing some bugs with the AdaptiveOperationTracker [(#613)](https://github.com/linkedin/ambry/pull/613)
+ - Adding a few startup log messages for HelixClusterManager [(#612)](https://github.com/linkedin/ambry/pull/612)
+ - Making the operation tracker for GET configurable [(#611)](https://github.com/linkedin/ambry/pull/611)
+ - Fix Utils#addSecondsToEpochTime() [(#610)](https://github.com/linkedin/ambry/pull/610)
+ - Handling case in recovery where PUT entry for a DELETE may not exist [(#608)](https://github.com/linkedin/ambry/pull/608)
+ - Changing server socket setup to be compatible with IPV4/6 [(#607)](https://github.com/linkedin/ambry/pull/607)
+ - Cluster wide quota stats via Helix [(#606)](https://github.com/linkedin/ambry/pull/606)
+ - Improvements to the Helix BootstrapUpgrade tool [(#605)](https://github.com/linkedin/ambry/pull/605)
+ - Fixing expiration values in IndexValue for overflow cases [(#604)](https://github.com/linkedin/ambry/pull/604)
+ - Fixing log-index recovery [(#602)](https://github.com/linkedin/ambry/pull/602)
+ - Changing log level for certain external packages to reduce verbosity [(#601)](https://github.com/linkedin/ambry/pull/601)
+ - Ensure router handles zero length buffers properly [(#600)](https://github.com/linkedin/ambry/pull/600)
+ - Fixing TTL value to -1 if expiration value is > Integer.MAX  [(#599)](https://github.com/linkedin/ambry/pull/599)
+ - Fixing config files [(#598)](https://github.com/linkedin/ambry/pull/598)
+ - Fixing a cast that was causing in overflow in IndexSegment [(#595)](https://github.com/linkedin/ambry/pull/595)
+ - data loss on windows platform [(#594)](https://github.com/linkedin/ambry/issues/594)
+ - Adding a trigger compaction request at the server [(#593)](https://github.com/linkedin/ambry/pull/593)
+ - Unknown error throwed when file size matches exact 4*1024*1024 bytes [(#592)](https://github.com/linkedin/ambry/issues/592)
+ - Enhancing ambry tools [(#591)](https://github.com/linkedin/ambry/pull/591)
+ - Removed avro dependency for StatsManager [(#590)](https://github.com/linkedin/ambry/pull/590)
+ - Adding logging and metrics for compaction [(#589)](https://github.com/linkedin/ambry/pull/589)
+ - Increase netty version to 4.1.6 [(#588)](https://github.com/linkedin/ambry/pull/588)
+ - Introduces Account and Container classes. [(#587)](https://github.com/linkedin/ambry/pull/587)
+ - Bucketing for BlobStoreStats [(#586)](https://github.com/linkedin/ambry/pull/586)
+ - Convert ClusterMap gauge metrics from Boolean to Long [(#585)](https://github.com/linkedin/ambry/pull/585)
+ - Added error catching for stats publishing [(#584)](https://github.com/linkedin/ambry/pull/584)
+ - Removing auto-persistence for compactor created index [(#583)](https://github.com/linkedin/ambry/pull/583)
+ - uncommenting compactor actions [(#582)](https://github.com/linkedin/ambry/pull/582)
+ - Fixing two bugs with revalidation [(#581)](https://github.com/linkedin/ambry/pull/581)
+ - Moving stats manager and related classes to com.github.ambry.server [(#580)](https://github.com/linkedin/ambry/pull/580)
+ - Replaced Partition with MockPartitionId in StatsManagerTest [(#579)](https://github.com/linkedin/ambry/pull/579)
+ - Improving CompactionManager using cost benefit analysis [(#577)](https://github.com/linkedin/ambry/pull/577)
+ - Adding a thread to run compactions on stores [(#576)](https://github.com/linkedin/ambry/pull/576)
+ - Adding revalidation of StoreFindToken [(#575)](https://github.com/linkedin/ambry/pull/575)
+ - Added node level quota stats [(#574)](https://github.com/linkedin/ambry/pull/574)
+ - Fixing a couple of intermittent router tests [(#573)](https://github.com/linkedin/ambry/pull/573)
+ - Adding SSL latency metrics and public access logging [(#572)](https://github.com/linkedin/ambry/pull/572)
+ - Adding CompactionManagerV0 [(#571)](https://github.com/linkedin/ambry/pull/571)
+ - Introduce dynamic cluster management [(#569)](https://github.com/linkedin/ambry/pull/569)
+ - Introducing BlobStoreCompactor [(#568)](https://github.com/linkedin/ambry/pull/568)
+ - Rename ClusterManager to StaticClusterManager [(#566)](https://github.com/linkedin/ambry/issues/566)
+ - Wake up RequestResponseHandler when the last chunk becomes ready [(#565)](https://github.com/linkedin/ambry/pull/565)
+ - Adding more features to CuratedLogIndexState [(#564)](https://github.com/linkedin/ambry/pull/564)
+ - Adding support for passing service ID to NotificationSystem on deletes [(#563)](https://github.com/linkedin/ambry/pull/563)
+ - Adding more logging to triage HardDelete pause resume test failure [(#562)](https://github.com/linkedin/ambry/pull/562)
+ - Ensure network client is woken up when put channel is closed [(#561)](https://github.com/linkedin/ambry/pull/561)
+ - Fix spurious error messages when putting simple blobs. [(#560)](https://github.com/linkedin/ambry/pull/560)
+ - Spurious errors in the log for simple blob puts [(#559)](https://github.com/linkedin/ambry/issues/559)
+ - Changes to CompactionDetails and CompactionLog to change APIs and fields [(#557)](https://github.com/linkedin/ambry/pull/557)
+ - Single store blob stats v0 [(#554)](https://github.com/linkedin/ambry/pull/554)
+ - Maintaining version in StoreFindToken during ser and deser [(#553)](https://github.com/linkedin/ambry/pull/553)
+ - Adding HTTPS support to ambry-frontend [(#552)](https://github.com/linkedin/ambry/pull/552)
+ - Use CRCs to distinguish real id collisions from those due to fast replication [(#549)](https://github.com/linkedin/ambry/pull/549)
+ - Avoid empty Get requests in replication [(#548)](https://github.com/linkedin/ambry/issues/548)
+ - Blob store consumption stats [(#547)](https://github.com/linkedin/ambry/pull/547)
+ - Introducing an adaptive operation tracker [(#545)](https://github.com/linkedin/ambry/pull/545)
+ - Commenting out hard delete pause and resume test failure [(#544)](https://github.com/linkedin/ambry/pull/544)
+ - Making the index friendly to a switch of active index segments [(#543)](https://github.com/linkedin/ambry/pull/543)
+ - Moving the creation of Index and Log state in tests to a common class [(#542)](https://github.com/linkedin/ambry/pull/542)
+ - Adding new fields to IndexSegment and IndexValue [(#541)](https://github.com/linkedin/ambry/pull/541)
+ - Avoid upfront size limitation for router puts [(#540)](https://github.com/linkedin/ambry/pull/540)
+ - Adding APIs that the BlobStoreCompactor will eventually use [(#537)](https://github.com/linkedin/ambry/pull/537)
+ - Upgrading netty version to 4.1.4 [(#536)](https://github.com/linkedin/ambry/pull/536)
+ - Writing StoreFindToken in Version_2 [(#534)](https://github.com/linkedin/ambry/pull/534)
+ - Fixing build failures [(#533)](https://github.com/linkedin/ambry/pull/533)
+ - Printing progress messages in PartitionManager [(#532)](https://github.com/linkedin/ambry/pull/532)
+ - Adhering to RFC7232  [(#527)](https://github.com/linkedin/ambry/pull/527)
+ - Adding more metrics to index(bloom filter) [(#526)](https://github.com/linkedin/ambry/pull/526)
+ - Making Tools constructors public [(#525)](https://github.com/linkedin/ambry/pull/525)
+ - Introduce dynamic cluster management in Ambry [(#524)](https://github.com/linkedin/ambry/issues/524)
+ - Add a tool to map static cluster map information into Helix [(#523)](https://github.com/linkedin/ambry/pull/523)
+ - Enhancements to HardDeletes and IndexPersistor [(#521)](https://github.com/linkedin/ambry/pull/521)
+ - Adding CompactionDetails and CompactionLog [(#520)](https://github.com/linkedin/ambry/pull/520)
+ - Fixing compatibility issues with java 7 [(#518)](https://github.com/linkedin/ambry/pull/518)
+ - Restructuring tools and making some APIs public [(#516)](https://github.com/linkedin/ambry/pull/516)
+ - Adding metrics and throttling to ambry-tools [(#515)](https://github.com/linkedin/ambry/pull/515)
+ - Adding support to compare blob content across replicas to BlobValidator [(#513)](https://github.com/linkedin/ambry/pull/513)
+ - Move cleanup of failed composite blobs to the background [(#512)](https://github.com/linkedin/ambry/pull/512)
+ - Fixing Replication Bug by way of introducing StoreDescriptor having IncarnationID [(#511)](https://github.com/linkedin/ambry/pull/511)
+ - Adding GetBlobOptionsBuilder [(#510)](https://github.com/linkedin/ambry/pull/510)
+ - Using store abstractions in tools + supporting segmented logs in tools [(#509)](https://github.com/linkedin/ambry/pull/509)
+ - Fix a race condition in the ChunkFiller [(#508)](https://github.com/linkedin/ambry/pull/508)
+ - Fixing a couple of issues with startup disk failure handling [(#506)](https://github.com/linkedin/ambry/pull/506)
+ - Removing some checks from the newScheduler unit test [(#504)](https://github.com/linkedin/ambry/pull/504)
+ - Log segmentation tests [(#503)](https://github.com/linkedin/ambry/pull/503)
+ - Writing StoreFindToken and BlobReadOptions in new formats [(#502)](https://github.com/linkedin/ambry/pull/502)
+ - Ensure data chunks of a deleted composite blob get deleted [(#497)](https://github.com/linkedin/ambry/pull/497)
+ - Storing the lag of local from remote as part of the RemoteReplicaInfo [(#494)](https://github.com/linkedin/ambry/pull/494)
+ - Applying consistent styling for all java files [(#491)](https://github.com/linkedin/ambry/pull/491)
+ - Adding an ambry prefix to the failure reason header [(#490)](https://github.com/linkedin/ambry/pull/490)
+ - Index changes for log segmentation [(#488)](https://github.com/linkedin/ambry/pull/488)
+ - Fixing a bug when Log::close() is called more than once [(#487)](https://github.com/linkedin/ambry/pull/487)
+ - Improving Index to Log Comparison in DataDump Tool [(#486)](https://github.com/linkedin/ambry/pull/486)
+ - Adding DiskManager and DiskIOScheduler (Reapplying PR #474) [(#485)](https://github.com/linkedin/ambry/pull/485)
+ - Adding support in the Router and Admin to get deleted/expired blobs [(#483)](https://github.com/linkedin/ambry/pull/483)
+ - fix calculateDiskInHardStateCount logic  [(#481)](https://github.com/linkedin/ambry/pull/481)
+ - Restructuring tools [(#480)](https://github.com/linkedin/ambry/pull/480)
+ - Router should not depend on the size in blob properties for puts [(#479)](https://github.com/linkedin/ambry/issues/479)
+ - Prevent DeleteManager from incrementing error metric for non-errors [(#478)](https://github.com/linkedin/ambry/pull/478)
+ - Changes to the Log to support log segmentation [(#477)](https://github.com/linkedin/ambry/pull/477)
+ - Adding ConcurrencyTestTool [(#475)](https://github.com/linkedin/ambry/pull/475)
+ - Adding DiskManager and DiskIOScheduler [(#474)](https://github.com/linkedin/ambry/pull/474)
+ - Revamping DataDump Tool and adding more operations [(#473)](https://github.com/linkedin/ambry/pull/473)
+ - Adding an abstraction for log segments [(#472)](https://github.com/linkedin/ambry/pull/472)
+ - Moving hard delete classes out of PersistentIndex [(#470)](https://github.com/linkedin/ambry/pull/470)
+ - Adding Pair class to get rid of javafx dependency [(#468)](https://github.com/linkedin/ambry/pull/468)
+ - Adding additional checks on Blob ID parsing [(#467)](https://github.com/linkedin/ambry/pull/467)
+ - Add a config for router.delete.success.target [(#466)](https://github.com/linkedin/ambry/pull/466)
+ - Range request cleanup. [(#465)](https://github.com/linkedin/ambry/pull/465)
+ - Adding an Offset class to refer to Log offsets [(#464)](https://github.com/linkedin/ambry/pull/464)
+ - Make sslConfig agnostic of ssl-enabled DCs and enable router ssl tests [(#462)](https://github.com/linkedin/ambry/pull/462)
+ - Adding RSC wrapper for InputStream [(#461)](https://github.com/linkedin/ambry/pull/461)
+ - Moving two functions from RSC to RestRequest [(#460)](https://github.com/linkedin/ambry/pull/460)
+ - Moving RSCInputStream to commons to make it more accesible [(#459)](https://github.com/linkedin/ambry/pull/459)
+ - Ensure get blob error metrics get updated correctly [(#458)](https://github.com/linkedin/ambry/pull/458)
+ - Fixing blob size header validation issue [(#456)](https://github.com/linkedin/ambry/pull/456)
+ - Add CRCs in the protocol used for communication by routers and datanodes. [(#455)](https://github.com/linkedin/ambry/issues/455)
+ - Puts occasionally get Blob_Exists error due to fast replication [(#454)](https://github.com/linkedin/ambry/issues/454)
+ - Refactoring metrics in RestServer [(#453)](https://github.com/linkedin/ambry/pull/453)
+ - Ensure ChannelClosed exception not set when channel is fully read. [(#452)](https://github.com/linkedin/ambry/pull/452)
+ - Refactor ResponseHandler class that does failure detection [(#451)](https://github.com/linkedin/ambry/pull/451)
+ - Adding REST api support for range requests [(#450)](https://github.com/linkedin/ambry/pull/450)
+ - Removing ambry-coordinator [(#449)](https://github.com/linkedin/ambry/pull/449)
+ - Fixing a serialization length compute calculation [(#446)](https://github.com/linkedin/ambry/pull/446)
+ - Write out put requests efficiently [(#445)](https://github.com/linkedin/ambry/pull/445)
+ - Adding metrics for happy path response status codes [(#442)](https://github.com/linkedin/ambry/pull/442)
+ - Adding backpressure support to NettyRequest [(#440)](https://github.com/linkedin/ambry/pull/440)
+ - Adding support for getting blob info and data in a single router call. [(#439)](https://github.com/linkedin/ambry/pull/439)
+ - Avoid incorrectly treating Blob_Deleted as a failure during replication. [(#438)](https://github.com/linkedin/ambry/pull/438)
+ - Delete successfully put data chunks of unsuccessful put operations. [(#437)](https://github.com/linkedin/ambry/pull/437)
+ - Removing CoordinatorBackedRouter [(#435)](https://github.com/linkedin/ambry/pull/435)
+ - Miscellaneous fixes to the router [(#429)](https://github.com/linkedin/ambry/pull/429)
+ - When request sending fails at the NetworkClient, notify response handler only on network errors [(#428)](https://github.com/linkedin/ambry/pull/428)
+ - Router level range request support [(#427)](https://github.com/linkedin/ambry/pull/427)
+ - Adding client and correlation id details to public access log [(#426)](https://github.com/linkedin/ambry/pull/426)
+ - Add chunking and size related metrics in the router [(#425)](https://github.com/linkedin/ambry/pull/425)
+ - Ensure operation tracker does not eliminate down replicas [(#424)](https://github.com/linkedin/ambry/pull/424)
+ - Ensure exceptions are always set for failed router operations [(#423)](https://github.com/linkedin/ambry/pull/423)
+ - Make the router resilient to unexpected errors [(#422)](https://github.com/linkedin/ambry/pull/422)
+ - Refactor get blob operation test to avoid blocking selector poll [(#421)](https://github.com/linkedin/ambry/pull/421)
+ - Prevent NetworkClient from returning duplicate failed responses [(#420)](https://github.com/linkedin/ambry/pull/420)
+ - Fixing some of the mis-configured rate metrics [(#419)](https://github.com/linkedin/ambry/pull/419)
+ - Fix gradlew script to use bash [(#417)](https://github.com/linkedin/ambry/pull/417)
+ - Cleaning up error logging and metrics [(#416)](https://github.com/linkedin/ambry/pull/416)
+ - fix for --keep-size option, it can fail if file does not exist [(#415)](https://github.com/linkedin/ambry/pull/415)
+ - Handling the way BlockingChannelInfo handle connection failures [(#414)](https://github.com/linkedin/ambry/pull/414)
+ - Avoid repeated connection initializations in the NetworkClient. [(#413)](https://github.com/linkedin/ambry/pull/413)
+ - Implementing new Metadata Content Format version for range reqs [(#411)](https://github.com/linkedin/ambry/pull/411)
+ - Always inform the failure detector when responses come in from the network client [(#410)](https://github.com/linkedin/ambry/pull/410)
+ - Use format expressions in new trace logging messages [(#409)](https://github.com/linkedin/ambry/pull/409)
+ - Adding trace logging to resource state policy [(#408)](https://github.com/linkedin/ambry/pull/408)
+ - Rename some replication metrics and fix 3-node dev configs [(#407)](https://github.com/linkedin/ambry/pull/407)
+ - Casting to Long explicitly in a test [(#406)](https://github.com/linkedin/ambry/pull/406)
+ - Fixes to README [(#404)](https://github.com/linkedin/ambry/pull/404)
+ - Fix erroneous/loose bloom filter related documentation [(#402)](https://github.com/linkedin/ambry/pull/402)
+ - Fixing some corner case bugs [(#390)](https://github.com/linkedin/ambry/pull/390)
+ - Making server codec variables configurable [(#389)](https://github.com/linkedin/ambry/pull/389)
+ - Removing POST and wiring in GetReplicas in Admin [(#387)](https://github.com/linkedin/ambry/pull/387)
+ - Performance optimizations for the router [(#386)](https://github.com/linkedin/ambry/pull/386)
+ - Adding metrics to track thread usage in Coordinator and Router [(#385)](https://github.com/linkedin/ambry/pull/385)
+ - Fixing a race condition in singleton creation [(#384)](https://github.com/linkedin/ambry/pull/384)
+ - Fix replicationLag metric name [(#382)](https://github.com/linkedin/ambry/pull/382)
+ - Logging the reason for malformed request [(#381)](https://github.com/linkedin/ambry/pull/381)
+ - Adding a metric to track the contention in requestor pool [(#380)](https://github.com/linkedin/ambry/pull/380)
+ - Changing max of router scaling unit. [(#379)](https://github.com/linkedin/ambry/pull/379)
+ - Refactoring router error code unit tests and adding additional GetOperation unit tests [(#375)](https://github.com/linkedin/ambry/pull/375)
+ - Adding cross colo related metrics for the router [(#374)](https://github.com/linkedin/ambry/pull/374)
+ - Fixes deadlock issue and refactoring in SimpleByteBufferPoolTest. [(#371)](https://github.com/linkedin/ambry/pull/371)
+ - Changing APIs of buildBlobProps and buildUm in RestUtils [(#370)](https://github.com/linkedin/ambry/pull/370)
+ - Add chunkfilling related metrics [(#369)](https://github.com/linkedin/ambry/pull/369)
+ - Downgrading client caused exception logging to DEBUG [(#368)](https://github.com/linkedin/ambry/pull/368)
+ - Suppressing more logging when client drops connections [(#367)](https://github.com/linkedin/ambry/pull/367)
+ - Ignoring the exception thrown when client closes connection. [(#366)](https://github.com/linkedin/ambry/pull/366)
+ - Removing a PutManager test that is now irrelevant [(#364)](https://github.com/linkedin/ambry/pull/364)
+ - Adding more logging to NetworkClient [(#362)](https://github.com/linkedin/ambry/pull/362)
+ - Additional metrics for the router, and some cleanup [(#361)](https://github.com/linkedin/ambry/pull/361)
+ - Add operation manager related metrics for the non-blocking router [(#359)](https://github.com/linkedin/ambry/pull/359)
+ - Miscellaneous fixes to router metrics [(#358)](https://github.com/linkedin/ambry/pull/358)
+ - Moving changes from ambry-frontend to ambry-admin [(#357)](https://github.com/linkedin/ambry/pull/357)
+ - Fixing a typo with a config in NettyConfig [(#356)](https://github.com/linkedin/ambry/pull/356)
+ - Handle exceptions in operation poll/handleResponse [(#354)](https://github.com/linkedin/ambry/pull/354)
+ - Miscellaneous changes with rest request metrics tracking [(#352)](https://github.com/linkedin/ambry/pull/352)
+ - Fixing interim disconnections in Selector [(#351)](https://github.com/linkedin/ambry/pull/351)
+ - Fixing how selector handles preparation of ssl connections [(#349)](https://github.com/linkedin/ambry/pull/349)
+ - Fixes to LastHttpContent generation in NettyResponseChannel [(#347)](https://github.com/linkedin/ambry/pull/347)
+ - Ignore inconsequential ClosedChannelException in NettyResponseChannel [(#346)](https://github.com/linkedin/ambry/issues/346)
+ - Changing invalid request state detection logic in NettyMessageProcessor. [(#345)](https://github.com/linkedin/ambry/pull/345)
+ - Adding router-server integration tests [(#344)](https://github.com/linkedin/ambry/pull/344)
+ - Adding property files for ssl [(#343)](https://github.com/linkedin/ambry/pull/343)
+ - Turn on MessageFormat BlobRecord Version2 [(#341)](https://github.com/linkedin/ambry/pull/341)
+ - Adding a Perf framework to micro-benchmark rest and router performance. [(#340)](https://github.com/linkedin/ambry/pull/340)
+ - Fix an incorrect casting in PutOperation [(#338)](https://github.com/linkedin/ambry/pull/338)
+ - Incorporate ReadableStreamChannel interface changes within GetBlobResult [(#337)](https://github.com/linkedin/ambry/pull/337)
+ - Adding security processing for POST response [(#336)](https://github.com/linkedin/ambry/pull/336)
+ - Use partition name as part of metric names in StoreMetrics. [(#335)](https://github.com/linkedin/ambry/pull/335)
+ - Fix issue with replication thread count metric [(#332)](https://github.com/linkedin/ambry/pull/332)
+ - Adding metrics to NetworkClient [(#331)](https://github.com/linkedin/ambry/pull/331)
+ - Router metrics framework [(#327)](https://github.com/linkedin/ambry/pull/327)
+ - Introduces metrics framework for NB Router. [(#326)](https://github.com/linkedin/ambry/pull/326)
+ - Adding API support for generating digests in ReadableStreamChannel [(#321)](https://github.com/linkedin/ambry/pull/321)
+ - Allow for ByteBufferInputStream to return underlying ByteBuffer [(#320)](https://github.com/linkedin/ambry/pull/320)
+ - Adding getStatus() and getHeader() APIs in RestResponseChannel [(#319)](https://github.com/linkedin/ambry/pull/319)
+ - Make gradle test print stacktrace on test failure [(#318)](https://github.com/linkedin/ambry/pull/318)
+ - A fix to the PutManagerTest [(#317)](https://github.com/linkedin/ambry/pull/317)
+ - Move server integration tests out of build target [(#316)](https://github.com/linkedin/ambry/pull/316)
+ - Removing a test assertion that is wrong. [(#314)](https://github.com/linkedin/ambry/pull/314)
+ - Fixing the way Selector handles SSL connection handshakes [(#310)](https://github.com/linkedin/ambry/pull/310)
+ - Add support for getBlob() in the router [(#308)](https://github.com/linkedin/ambry/pull/308)
+ - Fixing a bug with the way channel pipelines were abstracted [(#307)](https://github.com/linkedin/ambry/pull/307)
+ - Misc changes to address tech debt [(#306)](https://github.com/linkedin/ambry/pull/306)
+ - Fixing arraylist initialization in ReplicationManager [(#305)](https://github.com/linkedin/ambry/pull/305)
+ - Commenting out misbehaving tests [(#294)](https://github.com/linkedin/ambry/pull/294)
+ - Abstracting the creation of netty channel handlers [(#293)](https://github.com/linkedin/ambry/pull/293)
+ - Discarding a CoordinatorBackedRouter test that is no longer relevant [(#291)](https://github.com/linkedin/ambry/pull/291)
+ - Increasing the upper bound of router scaling unit count. [(#290)](https://github.com/linkedin/ambry/pull/290)
+ - Use auto port selection in Get and Delete operations. [(#289)](https://github.com/linkedin/ambry/pull/289)
+ - Fixing SSL related metric for replication with the thread pool fix [(#288)](https://github.com/linkedin/ambry/pull/288)
+ - complete router operations using a callback instead of the static method [(#287)](https://github.com/linkedin/ambry/pull/287)
+ - 1. Added support for BlobNotModifiedResponse 2. Fixed Connection leak in CoordinatorBackedRouter [(#286)](https://github.com/linkedin/ambry/pull/286)
+ - Adding layout analysis python script [(#285)](https://github.com/linkedin/ambry/pull/285)
+ - Adding connection stats handler [(#284)](https://github.com/linkedin/ambry/pull/284)
+ - Fixes to replication token server tests [(#283)](https://github.com/linkedin/ambry/pull/283)
+ - Fix server test cleanup and resource consumption issues. [(#282)](https://github.com/linkedin/ambry/pull/282)
+ - Modifying the logic that gets Ambry IDs from the URI. [(#281)](https://github.com/linkedin/ambry/pull/281)
+ - Keeping connections alive on GONE and NOT_FOUND responses. [(#280)](https://github.com/linkedin/ambry/pull/280)
+ - Adding rack-aware partition allocation algorithm [(#279)](https://github.com/linkedin/ambry/pull/279)
+ - Ensure chunk buffers are reused only after associated sends are complete [(#278)](https://github.com/linkedin/ambry/pull/278)
+ - Adding junit to the notice [(#277)](https://github.com/linkedin/ambry/pull/277)
+ - GetManager implementation with GetBlobInfo support [(#276)](https://github.com/linkedin/ambry/pull/276)
+ - Fix configs in Rest, Netty and Admin [(#275)](https://github.com/linkedin/ambry/pull/275)
+ - Add support for BlobInfo requests at the server [(#274)](https://github.com/linkedin/ambry/pull/274)
+ - Making NettyRequest detect content size mismatch with size in header. [(#273)](https://github.com/linkedin/ambry/pull/273)
+ - Updated the NOTICE file [(#272)](https://github.com/linkedin/ambry/pull/272)
+ - Fix the copyright in the notice file [(#271)](https://github.com/linkedin/ambry/pull/271)
+ - Change copyright to 2016 [(#270)](https://github.com/linkedin/ambry/pull/270)
+ - Adding notice file [(#269)](https://github.com/linkedin/ambry/pull/269)
+ - Fix Readme [(#268)](https://github.com/linkedin/ambry/pull/268)
+ - Fixing UserMetadata generation in RestUtils [(#267)](https://github.com/linkedin/ambry/pull/267)
+ - Add rack info to DataNodeId/Datacenter [(#266)](https://github.com/linkedin/ambry/pull/266)
+ - Making some fixes to help quick start of Ambry [(#265)](https://github.com/linkedin/ambry/pull/265)
+ - Making changes to AmbryMain and RestServerMain [(#264)](https://github.com/linkedin/ambry/pull/264)
+ - Add auto port selection to DataNodeId [(#262)](https://github.com/linkedin/ambry/pull/262)
+ - Remove PutManager large blob test [(#258)](https://github.com/linkedin/ambry/pull/258)
+ - Adding metrics for some components in new frontend framework [(#257)](https://github.com/linkedin/ambry/pull/257)
+ - Updating gradle version to 2.12 [(#256)](https://github.com/linkedin/ambry/pull/256)
+ - PutManager initial implementation [(#255)](https://github.com/linkedin/ambry/pull/255)
+ - Reintegrating ServerTool changes [(#254)](https://github.com/linkedin/ambry/pull/254)
+ - Prepare Ambry for open source [(#253)](https://github.com/linkedin/ambry/pull/253)
+ - Added single node option to ServerTool [(#252)](https://github.com/linkedin/ambry/pull/252)
+ - Adding metrics and conversion for the new ResponseStatus codes [(#251)](https://github.com/linkedin/ambry/pull/251)
+ - Rewriting AmbryBlobStorageService to make callbacks cleaner [(#250)](https://github.com/linkedin/ambry/pull/250)
+ - Adding RestServerError Codes and misc fixes [(#249)](https://github.com/linkedin/ambry/pull/249)
+ - Wiring in IdConverter and SecurityService into AmbryBlobStorageService [(#248)](https://github.com/linkedin/ambry/pull/248)
+ - Updates to node failure detection in replication [(#247)](https://github.com/linkedin/ambry/pull/247)
+ - Adding new RestServiceErrorCode for Authorization failure [(#246)](https://github.com/linkedin/ambry/pull/246)
+ - Making the IdConverter interface async [(#245)](https://github.com/linkedin/ambry/pull/245)
+ - Adding SecurityService and DefaultSecurityService for Ambry [(#244)](https://github.com/linkedin/ambry/pull/244)
+ - Changes to not aggressively replicate from nodes that are down. [(#243)](https://github.com/linkedin/ambry/pull/243)
+ - Fixing a bug in HealthCheckHandler that made requests hang on keep-alive [(#241)](https://github.com/linkedin/ambry/pull/241)
+ - Adding IdConverter and IdConverterFactory interfaces. [(#240)](https://github.com/linkedin/ambry/pull/240)
+ - Added DeleteManager and DeleteOperation. [(#239)](https://github.com/linkedin/ambry/pull/239)
+ - Adding support for GET of sub-resources. [(#238)](https://github.com/linkedin/ambry/pull/238)
+ - Removing NettyServerDeployer to simplify code in NettyServer [(#237)](https://github.com/linkedin/ambry/pull/237)
+ - Adding Integration test for HealthCheck [(#235)](https://github.com/linkedin/ambry/pull/235)
+ - Simplifying the APIs and usage of ByteBufferAsyncWritableChannel. [(#234)](https://github.com/linkedin/ambry/pull/234)
+ - Support for multipart POST via the RestServer [(#233)](https://github.com/linkedin/ambry/pull/233)
+ - Adding a new method prepare() in RestRequest [(#232)](https://github.com/linkedin/ambry/pull/232)
+ - Adding support for Cookies [(#231)](https://github.com/linkedin/ambry/pull/231)
+ - Use the NetworkClient in the router; remove deprecated classes [(#230)](https://github.com/linkedin/ambry/pull/230)
+ - Fixing a failing test in AsyncRequestResponseHandlerTest. [(#229)](https://github.com/linkedin/ambry/pull/229)
+ - Reformatting code in rest and router package [(#228)](https://github.com/linkedin/ambry/pull/228)
+ - Adding Integration tests for ambry-admin and ambry-frontend [(#227)](https://github.com/linkedin/ambry/pull/227)
+ - Rework Router-Network interaction [(#226)](https://github.com/linkedin/ambry/pull/226)
+ - Adding NettyMultipartRequest to handle decoding of multipart requests. [(#225)](https://github.com/linkedin/ambry/pull/225)
+ - Adding PublicAccessLogRequestHandler and HealthCheckReqeustHandler to the new frontend framework [(#224)](https://github.com/linkedin/ambry/pull/224)
+ - Changing return type of getArgs() in RestRequest. [(#223)](https://github.com/linkedin/ambry/pull/223)
+ - Introduce a factory class for generating Selector and ConnectionManager for pluggability. [(#222)](https://github.com/linkedin/ambry/pull/222)
+ - Adding OperationTracker for NB Router. [(#221)](https://github.com/linkedin/ambry/pull/221)
+ - Removing ReadableStreamChannel.read() [(#220)](https://github.com/linkedin/ambry/pull/220)
+ - Fixing ambry-frontend [(#218)](https://github.com/linkedin/ambry/pull/218)
+ - Adding keep-alive support [(#217)](https://github.com/linkedin/ambry/pull/217)
+ - Introducing Ambry non blocking frontend [(#216)](https://github.com/linkedin/ambry/pull/216)
+ - Rest response channel cleanup [(#215)](https://github.com/linkedin/ambry/pull/215)
+ - Adding support for Metadata Blob [(#214)](https://github.com/linkedin/ambry/pull/214)
+ - Rest response channel upgrade [(#212)](https://github.com/linkedin/ambry/pull/212)
+ - Non-blocking Router Framework [(#211)](https://github.com/linkedin/ambry/pull/211)
+ - Stripping off UserMetadata prefix on storage [(#210)](https://github.com/linkedin/ambry/pull/210)
+ - Separate out SocketServer related metrics from NetworkMetrics [(#209)](https://github.com/linkedin/ambry/pull/209)
+ - Change to FutureResult to accept Exception instead of RuntimeException [(#208)](https://github.com/linkedin/ambry/pull/208)
+ - Replication fix to add thread pools per remote datacenter [(#207)](https://github.com/linkedin/ambry/pull/207)
+ - Fix a bug with replication token persistence [(#206)](https://github.com/linkedin/ambry/pull/206)
+ - ReadableStreamChannel interface change [(#204)](https://github.com/linkedin/ambry/pull/204)
+ - Changing UserMetadata to be added to headers [(#203)](https://github.com/linkedin/ambry/pull/203)
+ - Buffer pool for router. [(#202)](https://github.com/linkedin/ambry/pull/202)
+ - Request response handler interface change [(#201)](https://github.com/linkedin/ambry/pull/201)
+ - Fix build failures [(#200)](https://github.com/linkedin/ambry/pull/200)
+ - Logging and end-to-end request metrics for front end framework. [(#199)](https://github.com/linkedin/ambry/pull/199)
+ - 1. Adding documentation for SSLTrans [(#198)](https://github.com/linkedin/ambry/pull/198)
+ - Bringing back the old PutRequest API as deprecated [(#197)](https://github.com/linkedin/ambry/pull/197)
+ - Store ttl unit test. [(#196)](https://github.com/linkedin/ambry/pull/196)
+ - Bumping upper bound for replication fetch size [(#195)](https://github.com/linkedin/ambry/pull/195)
+ - PutRequest protocol change to support large blobs [(#194)](https://github.com/linkedin/ambry/pull/194)
+ - clear up the ServerTest [(#193)](https://github.com/linkedin/ambry/pull/193)
+ - Fixing client side ssl metrics [(#191)](https://github.com/linkedin/ambry/pull/191)
+ - Tool to verify hard deletes, with some improvements [(#190)](https://github.com/linkedin/ambry/pull/190)
+ - GET, POST, DELETE and HEAD in front end. [(#189)](https://github.com/linkedin/ambry/pull/189)
+ - update Send.writeTo() interface to return bytes written [(#187)](https://github.com/linkedin/ambry/pull/187)
+ - address more comments for pull request 185 [(#186)](https://github.com/linkedin/ambry/pull/186)
+ - add more metrics for ssl [(#185)](https://github.com/linkedin/ambry/pull/185)
+ - Change the unit from nanosecond to second for one parameter in ambry tool [(#184)](https://github.com/linkedin/ambry/pull/184)
+ - Ensure segment rollover checks are done during store deletes [(#183)](https://github.com/linkedin/ambry/pull/183)
+ - 1. Adding more trace logging [(#182)](https://github.com/linkedin/ambry/pull/182)
+ - update ambry tool to support ssl [(#180)](https://github.com/linkedin/ambry/pull/180)
+ - Fixes to Selector and SocketServer and BlockingChannelConnectionPool [(#179)](https://github.com/linkedin/ambry/pull/179)
+ - Printing ssl params [(#178)](https://github.com/linkedin/ambry/pull/178)
+ - support setting ssl protocol and cipher suit to sslSocket in client side [(#177)](https://github.com/linkedin/ambry/pull/177)
+ - Fixing minor code issue for coordinator operation [(#176)](https://github.com/linkedin/ambry/pull/176)
+ - Fixing minor test issue [(#175)](https://github.com/linkedin/ambry/pull/175)
+ - ServerTest Fix [(#174)](https://github.com/linkedin/ambry/pull/174)
+ - prevent crash if setting the number of inter colo replication threads to 0 [(#173)](https://github.com/linkedin/ambry/pull/173)
+ - Response handler rewrite [(#172)](https://github.com/linkedin/ambry/pull/172)
+ - address comments from Sriram about the SSLBlockingChannel [(#171)](https://github.com/linkedin/ambry/pull/171)
+ - Adding metrics reporter for RestServer [(#170)](https://github.com/linkedin/ambry/pull/170)
+ - fixed file not found error in unit test [(#169)](https://github.com/linkedin/ambry/pull/169)
+ - Server side SSL changes [(#168)](https://github.com/linkedin/ambry/pull/168)
+ - Fat jar build file changes [(#167)](https://github.com/linkedin/ambry/pull/167)
+ - Adding a Coordinator backed Router  [(#166)](https://github.com/linkedin/ambry/pull/166)
+ - remove per node metrics in Selector [(#165)](https://github.com/linkedin/ambry/pull/165)
+ - Fixing ServerTest [(#164)](https://github.com/linkedin/ambry/pull/164)
+ - Support Blocking SSL client used in replication and coordinator [(#163)](https://github.com/linkedin/ambry/pull/163)
+ - Fixing ServerTest [(#162)](https://github.com/linkedin/ambry/pull/162)
+ - Fixing the intermittant failures in ambry-network tests. [(#161)](https://github.com/linkedin/ambry/pull/161)
+ - hard delete crash recovery fix [(#160)](https://github.com/linkedin/ambry/pull/160)
+ - fix a bug to stop killing the processor thread [(#159)](https://github.com/linkedin/ambry/pull/159)
+ - Adding SSL support for Data Node [(#158)](https://github.com/linkedin/ambry/pull/158)
+ - Make hard delete shut down gracefully. [(#157)](https://github.com/linkedin/ambry/pull/157)
+ - Logging for ambry-rest and ambry-admin [(#156)](https://github.com/linkedin/ambry/pull/156)
+ - Fix package names [(#155)](https://github.com/linkedin/ambry/pull/155)
+ - 1.Adding new utilities to DumpData. 2. Fixing BlobValidator tool [(#154)](https://github.com/linkedin/ambry/pull/154)
+ - Handle closed channel exceptions; use atomic references for hard delete tokens [(#153)](https://github.com/linkedin/ambry/pull/153)
+ - Adding more logging during invalidation to log remote replica info [(#152)](https://github.com/linkedin/ambry/pull/152)
+ - Fix hard delete shutdown issue [(#151)](https://github.com/linkedin/ambry/pull/151)
+ - Integrate Selector [(#150)](https://github.com/linkedin/ambry/pull/150)
+ - Add more logging and fix a metric for hard deletes [(#149)](https://github.com/linkedin/ambry/pull/149)
+ - Fixing validation of corruption in storekey during message stream validation [(#148)](https://github.com/linkedin/ambry/pull/148)
+ - Fixing empty message info list written to store [(#147)](https://github.com/linkedin/ambry/pull/147)
+ - Fix the way exceptions are printed during hard delete iteration [(#146)](https://github.com/linkedin/ambry/pull/146)
+ - Disabling testFindDeletedEntries test for now [(#145)](https://github.com/linkedin/ambry/pull/145)
+ - Fix a test [(#144)](https://github.com/linkedin/ambry/pull/144)
+ - 1. Adding more logging to message sieving. 2. Some trivial fixes in tools [(#143)](https://github.com/linkedin/ambry/pull/143)
+ - change the max disk capacity to 10TB [(#142)](https://github.com/linkedin/ambry/pull/142)
+ - Fix the hard delete end to end test [(#141)](https://github.com/linkedin/ambry/pull/141)
+ - Fix hard delete server test hang issue, but disable it for now until we fix the root cause. [(#140)](https://github.com/linkedin/ambry/pull/140)
+ - 1. ServerTool to upload files to ambry to a specific partition 2. Fixing network tests which was hanging [(#139)](https://github.com/linkedin/ambry/pull/139)
+ - add new metric in coordinator to record the blob already exists error [(#138)](https://github.com/linkedin/ambry/pull/138)
+ - Introducing ambry-admin and ambry-rest modules [(#137)](https://github.com/linkedin/ambry/pull/137)
+ - add trace log to verify the processing time for metadate exchange, relat... [(#136)](https://github.com/linkedin/ambry/pull/136)
+ - Ignoring corrupt blobs during replication [(#135)](https://github.com/linkedin/ambry/pull/135)
+ - Added an index consistency checker [(#134)](https://github.com/linkedin/ambry/pull/134)
+ - Changes for hard deletes [(#133)](https://github.com/linkedin/ambry/pull/133)
+ - Changes to consistency checker in admin tools [(#132)](https://github.com/linkedin/ambry/pull/132)
+ - add more log to analyze the time consuming for replication process [(#131)](https://github.com/linkedin/ambry/pull/131)
+ - Avoid looking up a deleted key's delete status when processing replication requests [(#130)](https://github.com/linkedin/ambry/pull/130)
+ - Fix cross colo get policy to correctly ignore down replicas [(#129)](https://github.com/linkedin/ambry/pull/129)
+ - add ingraph metric to monitor the total time cost for replication [(#128)](https://github.com/linkedin/ambry/pull/128)
+ - Calculate segment entry sizes correctly [(#127)](https://github.com/linkedin/ambry/pull/127)
+ - More logging in needToRolloverIndex [(#126)](https://github.com/linkedin/ambry/pull/126)
+ - Fix to ignore down replicas for operations [(#125)](https://github.com/linkedin/ambry/pull/125)
+ - Use index end offset to synchronize store operations [(#123)](https://github.com/linkedin/ambry/pull/123)
+ - Print blob ids more judiciously [(#122)](https://github.com/linkedin/ambry/pull/122)
+ - Adding Consistency Checker Tool [(#121)](https://github.com/linkedin/ambry/pull/121)
+ - Fixing reseting of blob output [(#120)](https://github.com/linkedin/ambry/pull/120)
+ - Adding getBlob, getBlobProperties, getUserMetadata to AdmintTool [(#119)](https://github.com/linkedin/ambry/pull/119)
+ - Fix race conditions with deletes [(#118)](https://github.com/linkedin/ambry/pull/118)
+ - Persist token periodically [(#117)](https://github.com/linkedin/ambry/pull/117)
+ - Ensure journal always has the last segment's entries [(#116)](https://github.com/linkedin/ambry/pull/116)
+ - Fix issues in replication [(#115)](https://github.com/linkedin/ambry/pull/115)
+ - Adding support for list of blobs in BlobValidator and some format fixes [(#114)](https://github.com/linkedin/ambry/pull/114)
+ - Fixes to the index [(#113)](https://github.com/linkedin/ambry/pull/113)
+ - Unit tests, perf tool fix and formatting [(#112)](https://github.com/linkedin/ambry/pull/112)
+ - Addressing feedback for AdminTool and BlobValidator [(#111)](https://github.com/linkedin/ambry/pull/111)
+ - Handling the case where number of nodes to replicate from is 0 [(#110)](https://github.com/linkedin/ambry/pull/110)
+ - 1. Fixing and adding new features to DumpData 2. Adding BlobInfoTool [(#109)](https://github.com/linkedin/ambry/pull/109)
+ - Fix some issues in ReplicationManager [(#108)](https://github.com/linkedin/ambry/pull/108)
+ - Adding more logging to track unknown format error [(#107)](https://github.com/linkedin/ambry/pull/107)
+ - Change defaults for certain timeouts [(#106)](https://github.com/linkedin/ambry/pull/106)
+ - Better logging in failure detection [(#105)](https://github.com/linkedin/ambry/pull/105)
+ - Register the metric correctly [(#104)](https://github.com/linkedin/ambry/pull/104)
+ - Fixes for metrics [(#103)](https://github.com/linkedin/ambry/pull/103)
+ - Miscellaneous fixes [(#102)](https://github.com/linkedin/ambry/pull/102)
+ - Fix failure detection and socket connect timeout [(#101)](https://github.com/linkedin/ambry/pull/101)
+ - Adding new metrics to track cross colo calls [(#100)](https://github.com/linkedin/ambry/pull/100)
+ - Adding more logging to crosscoloParallelOperationPolicy [(#99)](https://github.com/linkedin/ambry/pull/99)
+ - package cleanup and add basic interface for non blocking implementation [(#98)](https://github.com/linkedin/ambry/pull/98)
+ - CrossDCGetOperationPolicy [(#97)](https://github.com/linkedin/ambry/pull/97)
+ - Fix datanode and disk retry backoff values [(#96)](https://github.com/linkedin/ambry/pull/96)
+ - Add an option to getRequest to return expired blobs [(#95)](https://github.com/linkedin/ambry/pull/95)
+ - Fix resource state metrics [(#94)](https://github.com/linkedin/ambry/pull/94)
+ - 1. Fixing appendFrom in Log to read entire bytes. 2. Add more checks for index update. 3. Fixing multiple puts and deletes [(#93)](https://github.com/linkedin/ambry/pull/93)
+ - Changing GetPolicy to SerialOperationPolicy [(#92)](https://github.com/linkedin/ambry/pull/92)
+ - Handle dynamic failures [(#91)](https://github.com/linkedin/ambry/pull/91)
+ - Logging and metric fixes [(#90)](https://github.com/linkedin/ambry/pull/90)
+ - Tweaking timeouts [(#89)](https://github.com/linkedin/ambry/pull/89)
+ - ResponseFailureHandler class and related changes to enable cluster map soft states [(#88)](https://github.com/linkedin/ambry/pull/88)
+ - Adding more log statements to debug latency issues with getPolicy of 2 [(#87)](https://github.com/linkedin/ambry/pull/87)
+ - Fix a comment about the default for coordinator operation timeout [(#86)](https://github.com/linkedin/ambry/pull/86)
+ - Adding more logging to debug getPolicy of parallelism 2 [(#85)](https://github.com/linkedin/ambry/pull/85)
+ - Fixing error message  [(#84)](https://github.com/linkedin/ambry/pull/84)
+ - small logging cleanup [(#83)](https://github.com/linkedin/ambry/pull/83)
+ - 1. Ensure that store operations catches other Exceptions and converts th... [(#82)](https://github.com/linkedin/ambry/pull/82)
+ - Quiet logs. Should not WARN now that we have multiple get requests outst... [(#81)](https://github.com/linkedin/ambry/pull/81)
+ - Change how we handle read from blocking channel in ByteBufferInputStream [(#80)](https://github.com/linkedin/ambry/pull/80)
+ - Remove debug logging [(#79)](https://github.com/linkedin/ambry/pull/79)
+ - 1. Change BlockingByteChannel to return the size of the stream. This is ... [(#78)](https://github.com/linkedin/ambry/pull/78)
+ - more logging [(#77)](https://github.com/linkedin/ambry/pull/77)
+ - add debug logging [(#76)](https://github.com/linkedin/ambry/pull/76)
+ - Fixing how read from blocking channel works  [(#75)](https://github.com/linkedin/ambry/pull/75)
+ - changing logging to info for better debugging [(#74)](https://github.com/linkedin/ambry/pull/74)
+ - adding trace for debugging [(#73)](https://github.com/linkedin/ambry/pull/73)
+ - Replication tweaks [(#72)](https://github.com/linkedin/ambry/pull/72)
+ - Ensure mountpaths are absolute paths [(#71)](https://github.com/linkedin/ambry/pull/71)
+ - Fixing Long compare to work with Java 6 [(#70)](https://github.com/linkedin/ambry/pull/70)
+ - Clean up replication, metrics and code review feedback for previous review [(#69)](https://github.com/linkedin/ambry/pull/69)
+ - Fix coordinator test to corrupt blob id string sufficiently [(#68)](https://github.com/linkedin/ambry/pull/68)
+ - Replication changes to batch pull changes from partitions [(#67)](https://github.com/linkedin/ambry/pull/67)
+ - Change Get Policy to have two requests outstanding in parallel [(#66)](https://github.com/linkedin/ambry/pull/66)
+ - Enable a way to control proxy calls for all operations [(#65)](https://github.com/linkedin/ambry/pull/65)
+ - Fixes [(#64)](https://github.com/linkedin/ambry/pull/64)
+ - Remove printStackTrace calls from pull 59 [(#63)](https://github.com/linkedin/ambry/pull/63)
+ - Added basic test for replica metadata request and some logging to debug a bug ... [(#62)](https://github.com/linkedin/ambry/pull/62)
+ - fixes [(#61)](https://github.com/linkedin/ambry/pull/61)
+ - Fixes to journal restore and multiple deletes [(#60)](https://github.com/linkedin/ambry/pull/60)
+ - Replication changes for materializing streams and doing batch gets and replica metadata request [(#59)](https://github.com/linkedin/ambry/pull/59)
+ - fix bug to ensure journal is populated properly on re start [(#58)](https://github.com/linkedin/ambry/pull/58)
+ - Fix bug and add more logging [(#57)](https://github.com/linkedin/ambry/pull/57)
+ - 1. Add better logging for replication [(#56)](https://github.com/linkedin/ambry/pull/56)
+ - Add trace logging for replication throttling [(#55)](https://github.com/linkedin/ambry/pull/55)
+ - server fixes [(#54)](https://github.com/linkedin/ambry/pull/54)
+ - Cleaner logging in Coordinator [(#53)](https://github.com/linkedin/ambry/pull/53)
+ - 1. Ensure all formats can be backwards compatible [(#52)](https://github.com/linkedin/ambry/pull/52)
+ - Change blob id to use base64 [(#51)](https://github.com/linkedin/ambry/pull/51)
+ - Minor fixes [(#50)](https://github.com/linkedin/ambry/pull/50)
+ - bug fixes and improvements [(#49)](https://github.com/linkedin/ambry/pull/49)
+ - Index fix to remove strong constraint check [(#48)](https://github.com/linkedin/ambry/pull/48)
+ - Fix for add replica and other improvements [(#47)](https://github.com/linkedin/ambry/pull/47)
+ - 1. Handling error scenarios in Coordinator 2. Adding new metrics to track server startup time and shutdown time [(#46)](https://github.com/linkedin/ambry/pull/46)
+ - Adding ratio of Current to Total capacity used Store metrics [(#45)](https://github.com/linkedin/ambry/pull/45)
+ - fixes and cleanups [(#44)](https://github.com/linkedin/ambry/pull/44)
+ - Fixing ReplicaLag metric name [(#43)](https://github.com/linkedin/ambry/pull/43)
+ - 1. Adding ReplicaLag metrics 2. Ambry-353: Change how coordinator deleteBlob handles 'not found' from all servers [(#42)](https://github.com/linkedin/ambry/pull/42)
+ - Update metric to not use ':' since it is not supported in LI [(#41)](https://github.com/linkedin/ambry/pull/41)
+ - Metrics cleanup, replication fix and add constraint checking [(#40)](https://github.com/linkedin/ambry/pull/40)
+ - fix logging [(#39)](https://github.com/linkedin/ambry/pull/39)
+ - Making Coordinator implement Closeable interface [(#38)](https://github.com/linkedin/ambry/pull/38)
+ - Changing getRandomLong to take in a Random Object [(#37)](https://github.com/linkedin/ambry/pull/37)
+ - Fix operation corruption metric bug [(#36)](https://github.com/linkedin/ambry/pull/36)
+ - Adding Metrics to Ambry Server to track Latency and Rate based on Blob size [(#35)](https://github.com/linkedin/ambry/pull/35)
+ - Adding Connection Pool Metrics to BlockingChannelConnectionPool [(#34)](https://github.com/linkedin/ambry/pull/34)
+ - Ambry server changes [(#33)](https://github.com/linkedin/ambry/pull/33)
+ - Adding Public Access log and fixing connection leaks on channel disconnect [(#32)](https://github.com/linkedin/ambry/pull/32)
+ - Fixes to ServerTest and ReplicaThread [(#31)](https://github.com/linkedin/ambry/pull/31)
+ - Config Property files for 3 servers [(#30)](https://github.com/linkedin/ambry/pull/30)
+ - Clean up NotificationSystem interface [(#29)](https://github.com/linkedin/ambry/pull/29)
+ - 1. Update coding standards [(#28)](https://github.com/linkedin/ambry/pull/28)
+ - Comment out Java 7 dependency. Fix intermittent test failure. [(#27)](https://github.com/linkedin/ambry/pull/27)
+ - Fix name of some coordinator request metrics. [(#26)](https://github.com/linkedin/ambry/pull/26)
+ - Fix error in data format corrupt error metric [(#25)](https://github.com/linkedin/ambry/pull/25)
+ - Build and start JMX reporter in coordinator for metrics. [(#24)](https://github.com/linkedin/ambry/pull/24)
+ - fixes  [(#23)](https://github.com/linkedin/ambry/pull/23)
+ - Added coordinator and clustermap metrics. [(#22)](https://github.com/linkedin/ambry/pull/22)
+ - 1. Fix ordering of messages during get [(#20)](https://github.com/linkedin/ambry/pull/20)
+ - Fixes for replication and notification system [(#19)](https://github.com/linkedin/ambry/pull/19)
+ - 1. Make all error logging in Operations to log the exception [(#18)](https://github.com/linkedin/ambry/pull/18)
+ - Fixes to replication [(#17)](https://github.com/linkedin/ambry/pull/17)
+ - Add toString to and trivial tests for BlobProperties [(#16)](https://github.com/linkedin/ambry/pull/16)
+ - BlobProperties cleanup (TTL and UserMetadataSize) [(#15)](https://github.com/linkedin/ambry/pull/15)
+ - Replication changes, new connection pool, more metrics and bug fixes [(#14)](https://github.com/linkedin/ambry/pull/14)
+ - Replication part 1 changes and partition assignment change [(#13)](https://github.com/linkedin/ambry/pull/13)
+ - Add metrics, addpartition tool and minor changes to Verifiable Properties [(#12)](https://github.com/linkedin/ambry/pull/12)
+ - Minor clean up of coordinator and clustermap [(#11)](https://github.com/linkedin/ambry/pull/11)
+ - Store recovery, make java 6 changes and linux cleanup [(#10)](https://github.com/linkedin/ambry/pull/10)
+ - Add Coordinator to Ambry. [(#9)](https://github.com/linkedin/ambry/pull/9)
+ - Add metrics, on disk index, error handling, lot more unit tests [(#8)](https://github.com/linkedin/ambry/pull/8)
+ - Fix clustermap test so build is not broken [(#7)](https://github.com/linkedin/ambry/pull/7)
+ - Completed message format + store integration + store unit tests [(#6)](https://github.com/linkedin/ambry/pull/6)
+ - adding missing file [(#5)](https://github.com/linkedin/ambry/pull/5)
+ - Initial cluster map commit. [(#4)](https://github.com/linkedin/ambry/pull/4)
+ - Adding configs and java docs [(#3)](https://github.com/linkedin/ambry/pull/3)
+ - Add logging to ambry [(#2)](https://github.com/linkedin/ambry/pull/2)
+ - changes to fix junit and other build issues [(#1)](https://github.com/linkedin/ambry/pull/1)
+
diff --git a/version.properties b/version.properties
index 4fb9d64266..e948d7fbdd 100644
--- a/version.properties
+++ b/version.properties
@@ -1,3 +1,4 @@
 #Version of the produced binaries. This file is intended to be checked-in.
 #It will be automatically bumped by release automation.
-version=0.3.0
+version=0.3.1
+previousVersion=0.3.0