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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13811) Splitting WALs, we are filtering out too many edits -> DATALOSS
Date Mon, 08 Jun 2015 04:00:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14576577#comment-14576577
] 

stack commented on HBASE-13811:
-------------------------------

Over w/e, I did a few small runs and we passed (when we'd usually fail) but then tried to
go big and we failed both. So, we seem to be better but we are not out of the woods yet. Let
me do a few small runs again to confirm we are 'better' with this patch and if that the case,
will commit and move on to debug of fails at larger scale.

> Splitting WALs, we are filtering out too many edits -> DATALOSS
> ---------------------------------------------------------------
>
>                 Key: HBASE-13811
>                 URL: https://issues.apache.org/jira/browse/HBASE-13811
>             Project: HBase
>          Issue Type: Bug
>          Components: wal
>    Affects Versions: 2.0.0, 1.2.0
>            Reporter: stack
>            Assignee: stack
>            Priority: Critical
>             Fix For: 2.0.0, 1.2.0
>
>         Attachments: 13811.branch-1.txt, 13811.branch-1.txt, 13811.txt, 13811.v2.branch-1.txt,
13811.v3.branch-1.txt, 13811.v3.branch-1.txt, 13811.v4.branch-1.txt, 13811.v5.branch-1.txt,
13811.v6.branch-1.txt, 13811.v6.branch-1.txt, 13811.v7.branch-1.txt, 13811.v8.branch-1.txt,
13811.v9.branch-1.txt, HBASE-13811-v1.testcase.patch, HBASE-13811.testcase.patch, startCacheFlush.diff
>
>
> I've been running ITBLLs against branch-1 around HBASE-13616 (move of ServerShutdownHandler
to pv2). I have come across an instance of dataloss. My patch for HBASE-13616 was in place
so can only think it the cause (but cannot see how). When we split the logs, we are skipping
legit edits. Digging.



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