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https://issues.apache.org/jira/browse/HBASE-7240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13506808#comment-13506808
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Jesse Yates commented on HBASE-7240:
------------------------------------
We could create a background chore that periodically checks this directory
against the running snapshots, but its likely a rare occurrence that we fail a
snapshot and can't cleanup after it. We probably just need to add a little
cleanup mechanism to on startup (could just drop this into the SnapshotManager
as it also plays well into a possible future goal of recovering snapshot
attempts between master failures).
> Cleanup old snapshots on start
> ------------------------------
>
> Key: HBASE-7240
> URL: https://issues.apache.org/jira/browse/HBASE-7240
> Project: HBase
> Issue Type: Sub-task
> Components: Client, master, regionserver, snapshots, Zookeeper
> Affects Versions: hbase-6055
> Reporter: Jesse Yates
> Fix For: hbase-6055
>
>
> If the master is hard stopped (i.e. kill -9), the snapshot handler or
> SnapshotManager may not have a chance to cleanup after the snapshot, leaving
> extraneous files in the working snapshot directory (/hbase/.snapshot/.tmp
> directory).
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