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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19056) TestCompactionInDeadRegionServer is top of the flakies charts!
Date Mon, 04 Dec 2017 12:38:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16276719#comment-16276719
] 

Hudson commented on HBASE-19056:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #4167 (See [https://builds.apache.org/job/HBase-Trunk_matrix/4167/])
HBASE-19056 TestCompactionInDeadRegionServer is top of the flakies (zhangduo: rev 3c02d9681b2d777677ce2ce1b21c2537ddd91817)
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactionInDeadRegionServer.java


>  TestCompactionInDeadRegionServer is top of the flakies charts!
> ---------------------------------------------------------------
>
>                 Key: HBASE-19056
>                 URL: https://issues.apache.org/jira/browse/HBASE-19056
>             Project: HBase
>          Issue Type: Bug
>          Components: test
>            Reporter: stack
>            Assignee: Ted Yu
>             Fix For: 3.0.0, 2.0.0-beta-1
>
>         Attachments: 19056.v5.txt, 19056.v6.txt, 19056.v7.txt
>
>
> The test came in recently as part of HBASE-17712 "Remove/Simplify the logic of RegionScannerImpl.handleFileNotFound"
> [~Apache9] when you have a chance, help me out. I was going to just remove the test since
it made no sense to me but then I saw you wrote it  (smile).
> When the region.compact(true); is called on the end, what is supposed to be going on?
> When I trace, the compact is not done because the Region is not writeEnabled (we check
if Region is writeEnabled down in Store before we go ahead and compact). So, I thought the
problem was that the region reference was stale because it came from the rsToSuspend which
had just been killed.
> After a while, I figured that you intend the region reference to be stale so you can
try an append AFTER the WAL has been taken over by WAL splitter.
> But the writeEnabled flag is set so compactions don't run. I tried unsetting this flag
and closed flags and but compaction won't run.
> Was this your intent sir? If so, I'll work w/ it np. Just looking for clarity. Thanks.




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