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Posted to issues@hbase.apache.org by "Yu Li (JIRA)" <ji...@apache.org> on 2016/06/01 09:24:59 UTC

[jira] [Created] (HBASE-15931) Add log for long-running tasks in AsyncProcess

Yu Li created HBASE-15931:
-----------------------------

             Summary: Add log for long-running tasks in AsyncProcess
                 Key: HBASE-15931
                 URL: https://issues.apache.org/jira/browse/HBASE-15931
             Project: HBase
          Issue Type: Improvement
            Reporter: Yu Li
            Assignee: Yu Li


Currently if there's any long-tail tasks in a multi-action request like triggered by {{BufferedMutatorImpl#backgroundFlushCommits}}, we could see logging message like below
{noformat}
2016-05-31 09:36:55,461 INFO [Thread-16] org.apache.hadoop.hbase.client.AsyncProcess: #28, waiting for some tasks to finish. Expected max=0, tasksInProgress=1
{noformat}
but there's no way to know detail of this long-tail, such as which table/region it's accessing. This JIRA aims at adding such log for easier debugging.



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