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https://issues.apache.org/jira/browse/UIMA-5334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on UIMA-5334 started by Lou DeGenaro.
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> DUCC Web Server (WS) sometimes incorrectly shows DB down
> --------------------------------------------------------
>
> Key: UIMA-5334
> URL: https://issues.apache.org/jira/browse/UIMA-5334
> Project: UIMA
> Issue Type: Bug
> Components: DUCC
> Reporter: Lou DeGenaro
> Assignee: Lou DeGenaro
> Fix For: 2.2.1-Ducc
>
>
> Presently, WS queries DB for Machines data to determine if DB is alive.
> However when Resource Manager (RM) is recycled it clears the table and then
> rebuilds it. WS may get fooled that DB is not functional for a short period
> of time when in fact it is functional.
> WS should query DB ckpt table, since it will always respond with data, to
> determine aliveness.
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