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From "Chia-Ping Tsai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17887) TestAcidGuarantees fails frequently
Date Mon, 08 May 2017 08:28:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000431#comment-16000431
] 

Chia-Ping Tsai commented on HBASE-17887:
----------------------------------------

bq. Am trying to apply your test case in master branch
The latest v4.patch works for branch-1. This issue blocks the HBASE-17876 so we should firstly
fix the bug for branch-1.

bq. This snapshotId is not the cacheFlushSeqId. So what we return is fine. But still if the
snapshot is already available is it right to do another flush on the same snapshot??
It may generate the duplicate file. Let me write a UT to trigger the bug. 

> 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.branch-1.v4.patch, HBASE-17887.branch-1.v4.patch, HBASE-17887.branch-1.v4.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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