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https://issues.apache.org/jira/browse/HBASE-24649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17146965#comment-17146965
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Viraj Jasani commented on HBASE-24649:
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[~zhangduo] sorry I just came to know that you just created this Jira.
I have just fixed the exact thing that you have mentioned in the description as
part of this addendum: [https://github.com/apache/hbase/pull/1988]
The build is +1, and I have also committed the same patch with these two
backport PRs:
1. [https://github.com/apache/hbase/pull/1985]
2. [https://github.com/apache/hbase/pull/1983]
and keeping an eye on the build. Will merge the backport PRs only after build
provides +1 for respective branches.
Nick already mentioned yesterday about the possible failure but it was my
mistake that I was actually running test *TestSimpleRegionNormalizer* locally
to reproduce the issue and not *TestSimpleRegionNormalizerOnCluster*. And yes,
you are absolutely right about normalizer also submitting merge plan together
with split plan and hence the unchanged count. Earlier, this particular
behaviour was masked because of the fact that split plan execution was blocking
and merge plan was non-blocking, and that's what HBASE-24588 has changed: To
make both execution plans non-blocking.
Thanks for reporting and apologies for the trouble you had to go through.
CC: [~ndimiduk]
> TestSimpleRegionNormalizerOnCluster is broken
> ---------------------------------------------
>
> Key: HBASE-24649
> URL: https://issues.apache.org/jira/browse/HBASE-24649
> Project: HBase
> Issue Type: Bug
> Components: Normalizer
> Reporter: Duo Zhang
> Priority: Major
>
> It failed for all the recent pre commit build, and has started to show on the
> flaky page.
> Spent some time when merging HBASE-24389, copy the comments from PR here
> It seems the problem is that while issuing a split, the normalizer also
> issues a merge, which lead to an unchanged region count and make the tests
> timeout.
> Not sure what is the root cause yet. HBASE-24588 maybe?
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