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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11368) Multi-column family BulkLoad fails if compactions go on too long
Date Thu, 28 Jan 2016 06:29:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15120874#comment-15120874
] 

Hadoop QA commented on HBASE-11368:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 5s {color} | {color:red}
HBASE-11368 does not apply to master. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/latest/precommit-patchnames
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12677543/hbase11368-master.patch
|
| JIRA Issue | HBASE-11368 |
| Powered by | Apache Yetus 0.1.0   http://yetus.apache.org |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/331/console |


This message was automatically generated.



> Multi-column family BulkLoad fails if compactions go on too long
> ----------------------------------------------------------------
>
>                 Key: HBASE-11368
>                 URL: https://issues.apache.org/jira/browse/HBASE-11368
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: Qiang Tian
>         Attachments: hbase-11368-0.98.5.patch, hbase11368-master.patch, key_stacktrace_hbase10882.TXT,
performance_improvement_verification_98.5.patch
>
>
> Compactions take a read lock.  If a multi-column family region, before bulk loading,
we want to take a write lock on the region.  If the compaction takes too long, the bulk load
fails.
> Various recipes include:
> + Making smaller regions (lame)
> + [~victorunique] suggests major compacting just before bulk loading over in HBASE-10882
as a work around.
> Does the compaction need a read lock for that long?  Does the bulk load need a full write
lock when multiple column families?  Can we fail more gracefully at least?



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