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https://issues.apache.org/jira/browse/HBASE-12957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14304735#comment-14304735
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Hudson commented on HBASE-12957:
--------------------------------
FAILURE: Integrated in HBase-TRUNK #6085 (See
[https://builds.apache.org/job/HBase-TRUNK/6085/])
HBASE-12957 Revert accidental checkin of unrelated test (tedyu: rev
fd0bb89fdf67d996e8cc678d81c6acb799c2cc49)
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerHostname.java
> region_mover#isSuccessfulScan may be extremely slow on region with lots of
> expired data
> ---------------------------------------------------------------------------------------
>
> Key: HBASE-12957
> URL: https://issues.apache.org/jira/browse/HBASE-12957
> Project: HBase
> Issue Type: Improvement
> Components: scripts
> Reporter: hongyu bi
> Assignee: hongyu bi
> Priority: Minor
> Fix For: 2.0.0, 1.1.0
>
> Attachments: HBASE-12957-v0.patch
>
>
> region_mover will call isSuccessfulScan when region has moved to make sure
> it's healthy, however , if the moved region has lots of expired data
> region_mover#isSuccessfulScan will take a long time to finish ,that may even
> exceed "lease timeout".So I made isSuccessfulScan a get-like scan to achieve
> faster response in that case.
> workaround:before graceful_stop/rolling_restart ，call major_compact on the
> table with small TTL
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