caSnooperAnalyzer

This project is for control people to check the load of the EPICS network.

Using caSnooper to analyze Channel Access broadcast packets every day and send the result to your email

How to use

checkout this program

git clone https://github.com/Insomnia1437/caSnooperAnalyzer.git

configuration

1. modify the config file config/config.ini
2. modify the shell script src/cron.sh

run this project as a crontab job

use crontab -e to edit your crontab job. Perhaps you need to set the $EDITOR env value first.

use your own python and your path. do not forget to execute chmod 777 cron.sh command.

30 * * * * /home/sdcswd/workspace/python/caSnooperAnalyzer/src/cron.sh

Using ElasticSearch as a database

We (KEK Linac Control Group) began to use ElasticSearch and Logstash to monitor the Control Network environment recently.

But running two caSnooper might cause the beacon anomaly. See https://epics.anl.gov/base/R3-14/12-docs/CAref.html#casw

One of the solution is to use the data from ElasticSearch database.

Using this method, crontab should run every day:

0 8 * * * /home/sdcswd/workspace/python/caSnooperAnalyzer/src/cron.sh

The CaSnooper parse results in ES document:

{
        "_index" : "linac-casnooper-2020.05.27",
        "_type" : "_doc",
        "_id" : "uCxbVnIBlwLZIrpPx2Zq",
        "_score" : 1.0,
        "_source" : {
          "@version" : "1",
          "@timestamp" : "2020-05-27T13:39:14.897Z",
          "pv" : "LIiRF:SECT36:MON_PHASE_PEAK1:QFE:10S",
          "Hz" : 0.2,
          "message" : "  79 lcbbc78.linac.kek.jp:57305     LIiRF:SECT36:MON_PHASE_PEAK1:QFE:10S 0.20",
          "host" : "lcbbc78.linac.kek.jp:57305"
        }
      }

If you do not use ES, leave the elasticsearch configuration items blank in the config.ini.

caSnooper

caSnooper User Guide

option	explanation
-c	Check validity of top n requests (0 means all). That is, try to connect to these process variables. Timeout after 10 s. See Report.
-d	Set debug level to n. Prints extra information for debugging.
-h	Help.
-i	Specify a PV name to watch individually. The default is CaSnoop.test. (The default is not affected by setting the prefix with -n.) See Individual Process Variable Name.
-l	Print all requests over n Hz. See Report.
-p	Print top n (0 means all). See Report.
-n[]	Make internal PV names available. Use string as prefix for internal PV names (10 chars max length). Default string is: CaSnoop. See CaSnooper Process Variables.
-s	Print all requests over n sigma. See Report.
-t	Run n seconds, then print report.
-w	Wait n sec before collecting data. Use to wait until searches resulting from CaSnooper's coming up are over.