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https://issues.apache.org/jira/browse/HBASE-17292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu updated HBASE-17292:
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Attachment: 17292.branch-1.v1.txt
> Add observer notification before bulk loaded hfile is moved to region
> directory
> -------------------------------------------------------------------------------
>
> Key: HBASE-17292
> URL: https://issues.apache.org/jira/browse/HBASE-17292
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Ted Yu
> Fix For: 2.0.0
>
> Attachments: 17292.addendum, 17292.branch-1.v1.txt, 17292.v1.txt,
> 17292.v2.txt, 17292.v3.txt
>
>
> Currently the postBulkLoadHFile() hook notifies the locations of bulk loaded
> hfiles.
> However, if bulk load fails after hfile is moved to region directory but
> before postBulkLoadHFile() hook is called, there is no way for pluggable
> components (replication - see HBASE-17290, backup / restore) to know which
> hfile(s) have been moved to region directory.
> Even if postBulkLoadHFile() is called in finally block, the write (to backup
> table or zookeeper) issued from postBulkLoadHFile() may fail, ending up with
> same situation.
> This issue adds a preCommitStoreFile() hook which notifies path of to be
> committed hfile before bulk loaded hfile is moved to region directory.
> With preCommitStoreFile() hook, write (to backup table or zookeeper) can be
> issued before the movement of hfile.
> If write fails, IOException would make bulk load fail, not leaving hfile in
> region directory.
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