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https://issues.apache.org/jira/browse/HBASE-6496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427693#comment-13427693
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Andrew Purtell commented on HBASE-6496:
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bq. CP classes are not unloaded, right?
Correct.
But they can be blacklisted via removal from the list of active loaded
coprocessors if they throw an Error. See
CoprocessorHost#handleCoprocessorThrowable.
The CoprocessorHost should clean up if the CP doesn't, or can't (due to
deregistration).
> Example ZK based scan policy
> ----------------------------
>
> Key: HBASE-6496
> URL: https://issues.apache.org/jira/browse/HBASE-6496
> Project: HBase
> Issue Type: Sub-task
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Fix For: 0.96.0, 0.94.2
>
> Attachments: 6496.txt
>
>
> Provide an example of a RegionServer that listens to a ZK node to learn about
> what set of KVs can safely be deleted during a compaction.
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