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https://issues.apache.org/jira/browse/HBASE-20724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guanghao Zhang updated HBASE-20724:
-----------------------------------
Release Note:
This is an old problem since HBASE-2231. The compaction event marker was only
writed to WAL. But after flush, the WAL may be archived, which means an useful
compaction event marker be deleted, too.
After this jira, the compaction event tracker will be writed to HFile. When
region open and load store files, read the compaction evnet tracker from HFile
and archive the compacted store files which still exist.
> Sometimes some compacted storefiles are still opened after region failover
> --------------------------------------------------------------------------
>
> Key: HBASE-20724
> URL: https://issues.apache.org/jira/browse/HBASE-20724
> Project: HBase
> Issue Type: Bug
> Affects Versions: 3.0.0, 1.3.0, 1.4.0, 1.5.0, 2.0.0
> Reporter: Francis Liu
> Assignee: Guanghao Zhang
> Priority: Critical
> Attachments: HBASE-20724.master.001.patch,
> HBASE-20724.master.002.patch, HBASE-20724.master.003.patch,
> HBASE-20724.master.004.patch, HBASE-20724.master.005.patch,
> HBASE-20724.master.006.patch, HBASE-20724.master.007.patch,
> HBASE-20724.master.008.patch, HBASE-20724.master.009.patch,
> HBASE-20724.master.010.patch, HBASE-20724.master.011.patch,
> HBASE-20724.master.012.patch, HBASE-20724.master.013.patch
>
>
> It is important that compacted storefiles of a given compaction execution are
> wholly opened or archived to insure data consistency. ie a storefile
> containing delete tombstones can be archived while older storefiles
> containing cells that were supposed to be deleted are left unarchived thereby
> undeleting those cells.
> When a server fails compaction markers (in the wal edit) are used to
> determine which storefiles are compacted and should be excluded during region
> open (during failover). But the WALs containing compaction markers can be
> prematurely archived even though there are still compacted storefiles for
> that particular compaction event that hasn't been archived yet. Thus losing
> compaction information that needs to be replayed in the event of an RS crash.
> This is because hlog archiving logic only keeps track of flushed storefiles
> and not compacted ones.
> https://issues.apache.org/jira/browse/HBASE-20704?focusedCommentId=16507680&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16507680
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