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https://issues.apache.org/jira/browse/YARN-6523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16663195#comment-16663195
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Hadoop QA commented on YARN-6523:
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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 5s{color}
| {color:red} YARN-6523 does not apply to trunk. Rebase required? Wrong Branch?
See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | YARN-6523 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12945524/YARN-6523.004.patch |
| Console output |
https://builds.apache.org/job/PreCommit-YARN-Build/22331/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
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> Newly retrieved security Tokens are sent as part of each heartbeat to each
> node from RM which is not desirable in large cluster
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-6523
> URL: https://issues.apache.org/jira/browse/YARN-6523
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: RM
> Affects Versions: 2.8.0, 2.7.3
> Reporter: Naganarasimha G R
> Assignee: Manikandan R
> Priority: Major
> Attachments: YARN-6523.001.patch, YARN-6523.002.patch,
> YARN-6523.003.patch, YARN-6523.004.patch
>
>
> Currently as part of heartbeat response RM sets all application's tokens
> though all applications might not be active on the node. On top of it
> NodeHeartbeatResponsePBImpl converts tokens for each app into
> SystemCredentialsForAppsProto. Hence for each node and each heartbeat too
> many SystemCredentialsForAppsProto objects were getting created.
> We hit a OOM while testing for 2000 concurrent apps on 500 nodes cluster with
> 8GB RAM configured for RM
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