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From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15931) Add log for long-running tasks in AsyncProcess
Date Thu, 02 Jun 2016 04:04:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311697#comment-15311697

Yu Li commented on HBASE-15931:

Pushed into master and branch-1. Thanks [~stack] for review.

[~mantonov], mind if I push this into branch-1.3 also? Thanks.

> 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
>         Attachments: HBASE-15931.patch
> 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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