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https://issues.apache.org/jira/browse/FLINK-18360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chesnay Schepler reassigned FLINK-18360:
----------------------------------------
Assignee: Jindrich Vimr
> Flink History Server doesn't show correctly table of Completed jobs when
> there are no archived jobs are in the archive directory
> --------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-18360
> URL: https://issues.apache.org/jira/browse/FLINK-18360
> Project: Flink
> Issue Type: Bug
> Components: Runtime / REST
> Affects Versions: 1.10.0
> Reporter: Jindrich Vimr
> Assignee: Jindrich Vimr
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.12.0
>
> Attachments: flink-hs-correct-no-jobs.png, flink-hs-no-data-shown.png
>
>
> When the directory defined in ${historyserver.archive.fs.dir} is empty
> (=there are no archived completed jobs), the History Server UI fails to show
> the Completed Jobs table.
> It should show the empty table with correct column headers and "No data" icon.
> This is due to file ${historyserver.web.tmpdir}/jobs/overview.json not being
> created. This file is fetched by the web UI from url `/jobs/overview`.
> This file is correctly created and populated by the History Server if the
> directory defined in ${historyserver.archive.fs.dir} contains any job.
> The situation when the Completed Jobs table is not populated normally
> indicates that the History Server stars up and processes the jobs in the
> archive, so the user should wait.
> This happened to us few times, as we waited for the HS to finish the archived
> jobs processing just to find out after hours that the HS has in fact nothing
> to show.
>
> The fix is simple, by removing `
> {code:java}
> if (!events.isEmpty()){code}
> condition around
> {code:java}
> updateJobOverview(webOverviewDir, webDir){code}
> in the
> [HistoryServerArchiveFetcher.java|[https://github.com/apache/flink/blob/master/flink-runtime-web/src/main/java/org/apache/flink/runtime/webmonitor/history/HistoryServerArchiveFetcher.java#L288]]
>
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