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https://issues.apache.org/jira/browse/HBASE-7294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538121#comment-13538121
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Matteo Bertozzi commented on HBASE-7294:
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this was written on top of the online branch. to avoid move around the code
from HMaster to SnapshotManager
> Check for snapshot file cleaners on start
> -----------------------------------------
>
> Key: HBASE-7294
> URL: https://issues.apache.org/jira/browse/HBASE-7294
> Project: HBase
> Issue Type: Sub-task
> Components: Client, master, regionserver, snapshots, Zookeeper
> Affects Versions: hbase-6055
> Reporter: Jesse Yates
> Assignee: Matteo Bertozzi
> Fix For: hbase-6055, 0.96.0
>
> Attachments: HBASE-7294-v1.patch, HBASE-7294-v2.patch,
> HBASE-7294-v3.patch, HBASE-7294-v4.patch
>
>
> Snapshots currently use the SnaphotHfileCleaner and SnapshotHLogCleaner to
> ensure that any hfiles or hlogs (respectively) that are currently part of a
> snapshot are not removed from their respective archive directories (.archive
> and .oldlogs).
> From Matteo Bertozzi:
> {quote}
> currently the snapshot cleaner is not in hbase-default.xml
> and there's no warning/exception on snapshot/restore operation, if not
> enabled.
> even if we add the cleaner to the hbase-default.xml how do we ensure that the
> user doesn't remove it?
> Do we want to hardcode the cleaner at master startup?
> Do we want to add a check in snapshot/restore that throws an exception if the
> cleaner is not enabled?
> {quote}
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