[jira] [Created] (PHOENIX-938) Use higher priority queue for index updates to prevent deadlock

["James Taylor (JIRA)" <ji...@apache.org>]

James Taylor created PHOENIX-938:
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             Summary: Use higher priority queue for index updates to prevent deadlock
                 Key: PHOENIX-938
                 URL: https://issues.apache.org/jira/browse/PHOENIX-938
             Project: Phoenix
          Issue Type: Bug
    Affects Versions: 4.0.0, 4.1
            Reporter: James Taylor
            Assignee: Jesse Yates


With our current global secondary indexing solution, a batched Put of table data causes a RS to do a batch Put to other RSs. This has the potential to lead to a deadlock if all RS are overloaded and unable to process the pending batched Put. To prevent this, we should use a higher priority queue to submit these Puts so that they're always processed before other Puts. This will prevent the potential for a deadlock under high load. Note that this will likely require some HBase 0.98 code changes and would not be feasible to implement for HBase 0.94.



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