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Posted to issues@hbase.apache.org by "jeongmin kim (JIRA)" <ji...@apache.org> on 2015/04/15 08:15:59 UTC
[jira] [Updated] (HBASE-13473) deleted cells come back alive after
the stripe compaction
[ https://issues.apache.org/jira/browse/HBASE-13473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
jeongmin kim updated HBASE-13473:
---------------------------------
Attachment: HBASE-13473.patch
> deleted cells come back alive after the stripe compaction
> ---------------------------------------------------------
>
> Key: HBASE-13473
> URL: https://issues.apache.org/jira/browse/HBASE-13473
> Project: HBase
> Issue Type: Bug
> Components: Compaction
> Affects Versions: 2.0.0, 1.0.1, 1.1.0, 0.98.12
> Reporter: jeongmin kim
> Priority: Blocker
> Labels: patch
> Fix For: 2.0.0, 1.1.1, 0.98.13
>
> Attachments: HBASE-13473.patch
>
>
> during the STRIPE compaction,
> deletes(tombstones) are being dropped in 2 cases.
> 1. Compaction including L0 (includeL0 == true)
> 2. L0 has no files (canDropDeletesWithoutL0 == true)
> To drop delete marker and keep the consistency during compaction,
> All of HFiles in the stripe has to be selected, just like major compaction.
> otherwise, after the compaction only delete markers would be gone,
> and deleted cells (which is in the not-selected HFiles) are going to be alive again.
> In my cluster, there was no file on L0 and not all file selected for compaction, so some of delete rows have come back alive after delete.
> I made a patch about it.
> it checks if all files are selected before we set the majorRange of compaction request .
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