[
https://issues.apache.org/jira/browse/FLINK-15948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17035950#comment-17035950
]
Yang Wang commented on FLINK-15948:
-----------------------------------
[~xintongsong] Thanks for your comments.
Now i think it makes sense to me to add the exact division check in
{{YarnClusterDescriptor#validateClusterResources}}. Currently, it is enough for
our users. If they really want to get the container resource, they could refer
to the Yarn ResourceManager web or rest api.
> Resource will be wasted when the task manager memory is not a multiple of
> Yarn minimum allocation
> -------------------------------------------------------------------------------------------------
>
> Key: FLINK-15948
> URL: https://issues.apache.org/jira/browse/FLINK-15948
> Project: Flink
> Issue Type: Bug
> Components: Deployment / YARN
> Affects Versions: 1.10.0
> Reporter: Yang Wang
> Priority: Major
>
> If the {{taskmanager.memory.process.size}} is set to 2000m and the Yarn
> minimum allocation is 128m, we will get a container with 2048m. Currently,
> {{TaskExecutorProcessSpec}} is built with 2000m, so we will have 48m wasted
> and they could not be used by Flink.
> I think Flink has accounted all the jvm heap, off-heap, overhead resources.
> So we should not leave these free memory there. And i suggest to update the
> {{TaskExecutorProcessSpec}} according to the Yarn allocated container.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
