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https://issues.apache.org/jira/browse/HBASE-19389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16382540#comment-16382540
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Hadoop QA commented on HBASE-19389:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 4s{color}
| {color:red} HBASE-19389 does not apply to branch-2. Rebase required? Wrong
Branch? See https://yetus.apache.org/documentation/0.7.0/precommit-patchnames
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HBASE-19389 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12901429/HBASE-19389-branch-2-V8.patch
|
| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/11752/console |
| Powered by | Apache Yetus 0.7.0 http://yetus.apache.org |
This message was automatically generated.
> Limit concurrency of put with dense (hundreds) columns to prevent write
> handler exhausted
> -----------------------------------------------------------------------------------------
>
> Key: HBASE-19389
> URL: https://issues.apache.org/jira/browse/HBASE-19389
> Project: HBase
> Issue Type: Improvement
> Components: Performance
> Affects Versions: 2.0.0
> Environment: 2000+ Region Servers
> PCI-E ssd
> Reporter: Chance Li
> Assignee: Chance Li
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: CSLM-concurrent-write.png,
> HBASE-19389-branch-2-V2.patch, HBASE-19389-branch-2-V3.patch,
> HBASE-19389-branch-2-V4.patch, HBASE-19389-branch-2-V5.patch,
> HBASE-19389-branch-2-V6.patch, HBASE-19389-branch-2-V7.patch,
> HBASE-19389-branch-2-V8.patch, HBASE-19389-branch-2.patch, metrics-1.png,
> ycsb-result.png
>
>
> In a large cluster, with a large number of clients, we found the RS's
> handlers are all busy sometimes. And after investigation we found the root
> cause is about CSLM, such as compare function heavy load. We reviewed the
> related WALs, and found that there were many columns (more than 1000 columns)
> were writing at that time.
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