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https://issues.apache.org/jira/browse/HBASE-16115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15352185#comment-15352185
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Lars Hofhansl commented on HBASE-16115:
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We've seen this with Phoenix indeed, but it's not specific to Phoenix.
> Missing security context in RegionObserver coprocessor when a compaction is
> triggered through the UI
> ----------------------------------------------------------------------------------------------------
>
> Key: HBASE-16115
> URL: https://issues.apache.org/jira/browse/HBASE-16115
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.98.20
> Reporter: Lars Hofhansl
>
> We ran into an interesting phenomenon which can easily render a cluster
> unusable.
> We loaded some tests data into a test table and forced a manual compaction
> through the UI. We have some compaction hooks implemented in a region
> observer, which writes back to another HBase table when the compaction
> finishes. We noticed that this coprocessor is not setup correctly, it seems
> the security context is missing.
> The interesting part is that this _only_ happens when the compaction is
> triggere through the UI. Automatic compactions (major or minor) or when
> triggered via the HBase shell (folling a kinit) work fine. Only the
> UI-triggered compactions cause this issues and lead to essentially
> neverending compactions, immovable regions, etc.
> Not sure what exactly the issue is, but I wanted to make sure I capture this.
> [~apurtell], [~ghelmling], FYI.
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