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[GOBBLIN-2159] Support partition level copy in Iceberg-Distcp (#4058)
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.../java/org/apache/gobblin/data/management/copy/iceberg/IcebergOverwritePartitionsStep.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package org.apache.gobblin.data.management.copy.iceberg; | ||
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| import java.io.IOException; | ||
| import java.time.Duration; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.Properties; | ||
| import java.util.concurrent.TimeUnit; | ||
| import java.util.concurrent.ExecutionException; | ||
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| import org.apache.iceberg.DataFile; | ||
| import org.apache.iceberg.catalog.TableIdentifier; | ||
| import org.apache.iceberg.util.SerializationUtil; | ||
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| import com.github.rholder.retry.Attempt; | ||
| import com.github.rholder.retry.RetryException; | ||
| import com.github.rholder.retry.RetryListener; | ||
| import com.github.rholder.retry.Retryer; | ||
| import com.google.common.collect.ImmutableMap; | ||
| import com.typesafe.config.Config; | ||
| import com.typesafe.config.ConfigFactory; | ||
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| import lombok.extern.slf4j.Slf4j; | ||
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| import org.apache.gobblin.commit.CommitStep; | ||
| import org.apache.gobblin.util.retry.RetryerFactory; | ||
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| import static org.apache.gobblin.util.retry.RetryerFactory.RETRY_INTERVAL_MS; | ||
| import static org.apache.gobblin.util.retry.RetryerFactory.RETRY_TIMES; | ||
| import static org.apache.gobblin.util.retry.RetryerFactory.RETRY_TYPE; | ||
| import static org.apache.gobblin.util.retry.RetryerFactory.RetryType; | ||
|
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| /** | ||
| * Commit step for overwriting partitions in an Iceberg table. | ||
| * <p> | ||
| * This class implements the {@link CommitStep} interface and provides functionality to overwrite | ||
| * partitions in the destination Iceberg table using serialized data files. | ||
| * </p> | ||
| */ | ||
| @Slf4j | ||
| public class IcebergOverwritePartitionsStep implements CommitStep { | ||
| private final String destTableIdStr; | ||
| private final Properties properties; | ||
| private final byte[] serializedDataFiles; | ||
| private final String partitionColName; | ||
| private final String partitionValue; | ||
| public static final String OVERWRITE_PARTITIONS_RETRYER_CONFIG_PREFIX = IcebergDatasetFinder.ICEBERG_DATASET_PREFIX + | ||
| ".catalog.overwrite.partitions.retries"; | ||
| private static final Config RETRYER_FALLBACK_CONFIG = ConfigFactory.parseMap(ImmutableMap.of( | ||
| RETRY_INTERVAL_MS, TimeUnit.SECONDS.toMillis(3L), | ||
| RETRY_TIMES, 3, | ||
| RETRY_TYPE, RetryType.FIXED_ATTEMPT.name())); | ||
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| /** | ||
| * Constructs an {@code IcebergReplacePartitionsStep} with the specified parameters. | ||
| * | ||
| * @param destTableIdStr the identifier of the destination table as a string | ||
| * @param serializedDataFiles [from List<DataFiles>] the serialized data files to be used for replacing partitions | ||
| * @param properties the properties containing configuration | ||
| */ | ||
| public IcebergOverwritePartitionsStep(String destTableIdStr, String partitionColName, String partitionValue, byte[] serializedDataFiles, Properties properties) { | ||
| this.destTableIdStr = destTableIdStr; | ||
| this.partitionColName = partitionColName; | ||
| this.partitionValue = partitionValue; | ||
| this.serializedDataFiles = serializedDataFiles; | ||
| this.properties = properties; | ||
| } | ||
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||
| @Override | ||
| public boolean isCompleted() { | ||
| return false; | ||
| } | ||
|
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| /** | ||
| * Executes the partition replacement in the destination Iceberg table. | ||
| * Also, have retry mechanism as done in {@link IcebergRegisterStep#execute()} | ||
| * | ||
| * @throws IOException if an I/O error occurs during execution | ||
| */ | ||
| @Override | ||
| public void execute() throws IOException { | ||
| // Unlike IcebergRegisterStep::execute, which validates dest table metadata has not changed between copy entity | ||
| // generation and the post-copy commit, do no such validation here, so dest table writes may continue throughout | ||
| // our copying. any new data written in the meanwhile to THE SAME partitions we are about to overwrite will be | ||
| // clobbered and replaced by the copy entities from our execution. | ||
| IcebergTable destTable = createDestinationCatalog().openTable(TableIdentifier.parse(this.destTableIdStr)); | ||
| List<DataFile> dataFiles = SerializationUtil.deserializeFromBytes(this.serializedDataFiles); | ||
| try { | ||
| log.info("~{}~ Starting partition overwrite - partition: {}; value: {}; numDataFiles: {}; path[0]: {}", | ||
| this.destTableIdStr, | ||
| this.partitionColName, | ||
| this.partitionValue, | ||
| dataFiles.size(), | ||
| dataFiles.get(0).path() | ||
| ); | ||
| Retryer<Void> overwritePartitionsRetryer = createOverwritePartitionsRetryer(); | ||
| overwritePartitionsRetryer.call(() -> { | ||
| destTable.overwritePartition(dataFiles, this.partitionColName, this.partitionValue); | ||
| return null; | ||
| }); | ||
| log.info("~{}~ Successful partition overwrite - partition: {}; value: {}", | ||
| this.destTableIdStr, | ||
| this.partitionColName, | ||
| this.partitionValue | ||
| ); | ||
| } catch (ExecutionException executionException) { | ||
| String msg = String.format("~%s~ Failed to overwrite partitions", this.destTableIdStr); | ||
| log.error(msg, executionException); | ||
| throw new RuntimeException(msg, executionException.getCause()); | ||
| } catch (RetryException retryException) { | ||
| String interruptedNote = Thread.currentThread().isInterrupted() ? "... then interrupted" : ""; | ||
| String msg = String.format("~%s~ Failure attempting to overwrite partition [num failures: %d] %s", | ||
| this.destTableIdStr, | ||
| retryException.getNumberOfFailedAttempts(), | ||
| interruptedNote); | ||
| Throwable informativeException = retryException.getLastFailedAttempt().hasException() | ||
| ? retryException.getLastFailedAttempt().getExceptionCause() | ||
| : retryException; | ||
| log.error(msg, informativeException); | ||
| throw new RuntimeException(msg, informativeException); | ||
| } | ||
| } | ||
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| protected IcebergCatalog createDestinationCatalog() throws IOException { | ||
| return IcebergDatasetFinder.createIcebergCatalog(this.properties, IcebergDatasetFinder.CatalogLocation.DESTINATION); | ||
| } | ||
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| private Retryer<Void> createOverwritePartitionsRetryer() { | ||
| Config config = ConfigFactory.parseProperties(this.properties); | ||
| Config retryerOverridesConfig = config.hasPath(IcebergOverwritePartitionsStep.OVERWRITE_PARTITIONS_RETRYER_CONFIG_PREFIX) | ||
| ? config.getConfig(IcebergOverwritePartitionsStep.OVERWRITE_PARTITIONS_RETRYER_CONFIG_PREFIX) | ||
| : ConfigFactory.empty(); | ||
|
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| return RetryerFactory.newInstance(retryerOverridesConfig.withFallback(RETRYER_FALLBACK_CONFIG), Optional.of(new RetryListener() { | ||
| @Override | ||
| public <V> void onRetry(Attempt<V> attempt) { | ||
| if (attempt.hasException()) { | ||
| String msg = String.format("~%s~ Exception while overwriting partitions [attempt: %d; elapsed: %s]", | ||
| destTableIdStr, | ||
| attempt.getAttemptNumber(), | ||
| Duration.ofMillis(attempt.getDelaySinceFirstAttempt()).toString()); | ||
| log.warn(msg, attempt.getExceptionCause()); | ||
| } | ||
| } | ||
| })); | ||
| } | ||
| } |
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