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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19731) TestFromClientSide#testCheckAndDeleteWithCompareOp and testNullQualifier are flakey
Date Tue, 09 Jan 2018 01:50:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317528#comment-16317528

Duo Zhang commented on HBASE-19731:

So what is the plan for HLC? In which version will it land? If it is not too far away I think
it is OK to keep the code as is.

> TestFromClientSide#testCheckAndDeleteWithCompareOp and testNullQualifier are flakey
> -----------------------------------------------------------------------------------
>                 Key: HBASE-19731
>                 URL: https://issues.apache.org/jira/browse/HBASE-19731
>             Project: HBase
>          Issue Type: Sub-task
>          Components: test
>            Reporter: stack
>            Assignee: Duo Zhang
>            Priority: Critical
>             Fix For: 2.0.0-beta-1
>         Attachments: HBASE-19731.patch
> These two tests fail frequently locally; rare does this suite pass.
> The failures are either of these two tests.  Unfortunately, running the test standalone
does not bring  on the issue; need to run the whole suite.
> In both cases, we have a Delete followed by a Put and then a checkAnd* -type operation
which does a Get expecting to find the just put Put but it fails on occasion.
> Looks to be an mvcc issues or Put going in at same timestamp as the Delete. Its hard
to debug given any added logging seems to make it all pass again.
> Seems this too is new in beta-1. Running tests against alpha-4 seem to pass.
> Doing a compare....

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