Milan Nikl created FLINK-18097:
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Summary: History server doesn't clean all job json files
Key: FLINK-18097
URL: https://issues.apache.org/jira/browse/FLINK-18097
Project: Flink
Issue Type: Bug
Components: Runtime / Web Frontend
Affects Versions: 1.10.1
Reporter: Milan Nikl
Improvement introduced in https://issues.apache.org/jira/browse/FLINK-14169
does not delete all files in the history server folders completely.
There is a [json file created for each
job|https://github.com/apache/flink/blob/master/flink-runtime-web/src/main/java/org/apache/flink/runtime/webmonitor/history/HistoryServerArchiveFetcher.java#L237-L238]
in history server's {{webDir/jobs/}} directory. Such file is not deleted by
{{cleanupExpiredJobs}}.
And while the cleaned up job is no longer visible in History server's
{{Completed Jobs List}} in web UI, it can be still accessed on
{{<HistoryServerURL>/#/job/<jobId>/overview}}.
While this bug probably won't lead to any serious issues, files in history
server's folders should be cleaned up thoroughly.
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