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https://issues.apache.org/jira/browse/PHOENIX-3789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15969563#comment-15969563
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James Taylor commented on PHOENIX-3789:
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The preMutateBatch only makes cross region calls if WAL edits are off. I've
filed PHOENIX-3790 for this case, but at SFDC we don't disable the WAL so we
don't need to handle this corner case immediately.
> Execute cross region index maintenance calls outside of row lock
> ----------------------------------------------------------------
>
> Key: PHOENIX-3789
> URL: https://issues.apache.org/jira/browse/PHOENIX-3789
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Assignee: James Taylor
> Fix For: 4.11.0, 4.10.1
>
> Attachments: PHOENIX-3789.patch, PHOENIX-3789_v2.patch
>
>
> Making cross region server calls while the row is locked can lead to a
> greater chance of resource starvation. We can use the
> postBatchMutateIndispensably hook instead of the postBatchMutate call for our
> processing.
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