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From "Prakash Khemani (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-2231) Compaction events should be written to HLog
Date Thu, 23 May 2013 18:45:31 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13665477#comment-13665477
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Prakash Khemani commented on HBASE-2231:
----------------------------------------

Hi, Prakash Khemani is no longer at Facebook so this email address is no longer being monitored.
If you need assistance, please contact another person who is currently at the company.

                
> Compaction events should be written to HLog
> -------------------------------------------
>
>                 Key: HBASE-2231
>                 URL: https://issues.apache.org/jira/browse/HBASE-2231
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Todd Lipcon
>            Assignee: stack
>            Priority: Blocker
>              Labels: moved_from_0_20_5
>             Fix For: 0.98.0, 0.95.1
>
>         Attachments: 2231-testcase-0.94.txt, 2231-testcase_v2.txt, 2231-testcase_v3.txt,
2231v2.txt, 2231v3.txt, 2231v4.txt, hbase-2231-testcase.txt, hbase-2231.txt, hbase-2231_v5.patch,
hbase-2231_v6.patch, hbase-2231_v7-0.95.patch, hbase-2231_v7.patch, hbase-2231_v7.patch
>
>
> The sequence for a compaction should look like this:
> # Compact region to "new" files
> # Write a "Compacted Region" entry to the HLog
> # Delete "old" files
> This deals with a case where the RS has paused between step 1 and 2 and the regions have
since been reassigned.

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