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https://issues.apache.org/jira/browse/PHOENIX-2249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15054359#comment-15054359
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Rajeshbabu Chintaguntla commented on PHOENIX-2249:
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+1 on the v1 patch. Nice work [~ankit.singhal]. Going to commit it.
> SYSTEM.STATS not update after region merge occurs.
> --------------------------------------------------
>
> Key: PHOENIX-2249
> URL: https://issues.apache.org/jira/browse/PHOENIX-2249
> Project: Phoenix
> Issue Type: Bug
> Environment: Ubuntu server 14.04
> Hadoop 2.6.0
> HBase 1.0.0
> Phoenix 4.4.0-HBase-1.0.0
> Reporter: Kuan-Po Tseng
> Assignee: Ankit Singhal
> Fix For: 4.7.0
>
> Attachments: PHOENIX-2249.patch, PHOENIX-2249_V1.patch
>
>
> When region merge occurs, SYSTEM.STATS does not update, it will leave stale
> information behind. And then if region splits on the merged region, this may
> cause
> "org.apache.phoenix.schema.StaleRegionBoundaryCacheException: ERROR 1108
> (XCL08): Cache of region boundaries are out of date"
> after creating parallel scans since the stale information in SYSTEM.STATS
> will let guide post list not sorted in ascending order and this will cause
> scans over regions.
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