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https://issues.apache.org/jira/browse/HBASE-1671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12736177#action_12736177
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Jean-Daniel Cryans commented on HBASE-1671:
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+1
I did not test it but from what I see it does the right thing, also it adds a
test case. Waiting for a scanner to finish before splitting is dangerous IMO,
imagine a job that writes inside a table it scans... could take a long time
before it finishes and we could get very big regions! So now with the client
handling that we should have a better story.
Some nitpicks, some classes have unused imports after this patch like HCM and I
also wonder why you use org.mortbay.log.Log inside ScannerCallable as we never
used that class anywhere else.
> HBASE-1609 broke scanners riding across splits
> ----------------------------------------------
>
> Key: HBASE-1671
> URL: https://issues.apache.org/jira/browse/HBASE-1671
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 0.20.0
>
> Attachments: 1671-v2.patch, 1671-v3.patch, 1671.patch
>
>
> On split, we close region and close out scanner leases. Scanners coming in
> get USEs instead of NSREs. Fix. Broke by hbase-1609.
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