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From "Chia-Ping Tsai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17887) TestAcidGuarantees fails frequently
Date Fri, 05 May 2017 15:42:05 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17887?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chia-Ping Tsai updated HBASE-17887:
    Attachment: HBASE-17887.branch-1.v3.patch

Both of the cell set and time tracker are necessary for MemStoreScanner in branch-1, so we
need to copy the references of them atomically. Otherwise, the wrong time tracker may make
the MemStoreScanner be skipped(see MemStoreScanner#shouldSeek). I don't want to use the lock/sync,
hence I create an new inner class in MemStoreScanner to contain those fields. The v3.patch
introduces more changes than v2.patch.

[~ram_krish] I add the test TestStore#testScanWithDoubleFlush. Would you please take a look?

> TestAcidGuarantees fails frequently
> -----------------------------------
>                 Key: HBASE-17887
>                 URL: https://issues.apache.org/jira/browse/HBASE-17887
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 2.0.0
>            Reporter: Umesh Agashe
>            Assignee: Chia-Ping Tsai
>            Priority: Blocker
>             Fix For: 2.0.0, 1.4.0, 1.2.6, 1.3.2, 1.4.1
>         Attachments: HBASE-17887.branch-1.v0.patch, HBASE-17887.branch-1.v1.patch, HBASE-17887.branch-1.v1.patch,
HBASE-17887.branch-1.v2.patch, HBASE-17887.branch-1.v2.patch, HBASE-17887.branch-1.v3.patch,
HBASE-17887.v0.patch, HBASE-17887.v1.patch
> As per the flaky tests dashboard here: https://builds.apache.org/job/HBASE-Find-Flaky-Tests/lastSuccessfulBuild/artifact/dashboard.html,
It fails 30% of the time.
> While working on HBASE-17863, a few verification builds on patch failed due to TestAcidGuarantees
didn't pass. IMHO, the changes for HBASE-17863 are unlikely to affect get/ put path.
> I ran the test with and without the patch several times locally and found that TestAcidGuarantees
fails without the patch similar number of times.
> Opening blocker, considering acid guarantees are critical to HBase.

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