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https://issues.apache.org/jira/browse/YARN-4138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15131755#comment-15131755
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Jian He commented on YARN-4138:
-------------------------------
bq. We only confirm resource when NM reported resource is the same as RM
resource.
thanks for the explanation. I wonder why the decision was made to reset to the
initial resource, in this case, the first increase happened successfully from
app's point of view, will this confuse the apps if the resource somehow
decrease back to the initial resource.
> Roll back container resource allocation after resource increase token expires
> -----------------------------------------------------------------------------
>
> Key: YARN-4138
> URL: https://issues.apache.org/jira/browse/YARN-4138
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: api, nodemanager, resourcemanager
> Reporter: MENG DING
> Assignee: MENG DING
> Attachments: YARN-4138-YARN-1197.1.patch,
> YARN-4138-YARN-1197.2.patch, YARN-4138.3.patch, YARN-4138.4.patch,
> YARN-4138.5.patch
>
>
> In YARN-1651, after container resource increase token expires, the running
> container is killed.
> This ticket will change the behavior such that when a container resource
> increase token expires, the resource allocation of the container will be
> reverted back to the value before the increase.
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