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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 Thu, 04 Jun 2015 18:23:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573320#comment-14573320
] 

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

Here is a doc. I started on how to debug ITBLL issues. Talks tooling and how tracked these
last two items: https://docs.google.com/document/d/14Tvu5yWYNBDFkh8xCqLkU9tlyNWhJv3GjDGOkqZU1eE/edit?usp=sharing
Suggestions on how to get to faster turnaround or what to add appreciated.

> 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, HBASE-13811-v1.testcase.patch, HBASE-13811.testcase.patch
>
>
> 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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