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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9648) collection one expired storefile causes it to be replaced by another expired storefile
Date Fri, 20 Dec 2013 01:04:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13853550#comment-13853550
] 

Sergey Shelukhin commented on HBASE-9648:
-----------------------------------------

[~jmspaggi] ping?

> collection one expired storefile causes it to be replaced by another expired storefile
> --------------------------------------------------------------------------------------
>
>                 Key: HBASE-9648
>                 URL: https://issues.apache.org/jira/browse/HBASE-9648
>             Project: HBase
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: Sergey Shelukhin
>            Assignee: Jean-Marc Spaggiari
>         Attachments: HBASE-9648-v0-0.94.patch, HBASE-9648-v0-trunk.patch, HBASE-9648-v1-trunk.patch,
HBASE-9648-v2-trunk.patch, HBASE-9648.patch
>
>
> There's a shortcut in compaction selection that causes the selection of expired store
files to quickly delete.
> However, there's also the code that ensures we write at least one file to preserve seqnum.
This new empty file is "expired", because it has no data, presumably.
> So it's collected again, etc.
> This affects 94, probably also 96.



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