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Subject [GitHub] [flink] dmvk commented on issue #9759: [FLINK-14169][history-server] Cleanup expired jobs from history server
Date Wed, 16 Oct 2019 08:08:22 GMT
dmvk commented on issue #9759: [FLINK-14169][history-server] Cleanup expired jobs from history
server
URL: https://github.com/apache/flink/pull/9759#issuecomment-542579134
 
 
   @aljoscha Thanks for the review! The original motivation was [FLINK-13958](https://issues.apache.org/jira/browse/FLINK-13958).
As we are forced to run jobs in detached mode, we need to somehow determine that the batch
job has completed successfully. We do this by polling the history server.
   
   History server became unresponsive with large number of jobs (1000+) and in case of restart
it took a really long time to recover as it needed to replay the whole history from hdfs.
We only need to keep recent jobs in history server and the expected behavior would be, that
the history server "mirrors" the actual state of watched directories.
   
   WDYT?
   
   Thanks,
   D.

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