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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2162) add ability in Fair Scheduler to optionally configure maxResources in terms of percentage
Date Mon, 09 Oct 2017 08:47:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-2162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16196677#comment-16196677
] 

Rohith Sharma K S commented on YARN-2162:
-----------------------------------------

This commit is causing java doc error in trunk. Please take a look!
{noformat}
[ERROR] /Users/rsharmaks/Repos/Apache/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/ConfigurableResource.java:49:
error: unterminated inline tag
[ERROR]    * {@code percentages} or {@code clusterResource) is null.
[ERROR]                             ^
{noformat}

> add ability in Fair Scheduler to optionally configure maxResources in terms of percentage
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-2162
>                 URL: https://issues.apache.org/jira/browse/YARN-2162
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler, scheduler
>            Reporter: Ashwin Shankar
>            Assignee: Yufei Gu
>              Labels: scheduler
>             Fix For: 2.9.0, 3.0.0, 3.1.0
>
>         Attachments: YARN-2162.001.patch, YARN-2162.002.patch, YARN-2162.003.patch, YARN-2162.004.patch,
YARN-2162.005.patch, YARN-2162.006.patch, YARN-2162.007.patch, YARN-2162.008.patch, YARN-2162.branch-2.010.patch,
YARN-2162.branch-3.0.009.patch, test-400nm-200app-2k_NODE_UPDATE.timecost.svg
>
>
> minResources and maxResources in fair scheduler configs are expressed in terms of absolute
numbers X mb, Y vcores. 
> As a result, when we expand or shrink our hadoop cluster, we need to recalculate and
change minResources/maxResources accordingly, which is pretty inconvenient.
> We can circumvent this problem if we can optionally configure these properties in terms
of percentage of cluster capacity. 



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