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https://issues.apache.org/jira/browse/FLINK-10884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16693129#comment-16693129
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wgcn commented on FLINK-10884:
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I found a unit test that per default the off heap memory is set to what the
network buffers require.
[https://github.com/apache/flink/blob/f629b05a2cdc2c07f4a19456cf5b3e5fdd6ff607/flink-runtime/src/test/java/org/apache/flink/runtime/clusterframework/ContaineredTaskManagerParametersTest.java#L37]
I guess that the author of the code do that willfully .I don't know why the
author do that
> Flink on yarn TM container will be killed by nodemanager because of the
> exceeded physical memory.
> ----------------------------------------------------------------------------------------------------
>
> Key: FLINK-10884
> URL: https://issues.apache.org/jira/browse/FLINK-10884
> Project: Flink
> Issue Type: Bug
> Components: Cluster Management, Core
> Affects Versions: 1.5.5, 1.6.2, 1.7.0
> Environment: version : 1.6.2
> module : flink on yarn
> centos jdk1.8
> hadoop 2.7
> Reporter: wgcn
> Assignee: wgcn
> Priority: Major
> Labels: yarn
>
> TM container will be killed by nodemanager because of the exceeded
> [physical|http://www.baidu.com/link?url=Y4LyfMDH59n9-Ey16Fo6EFAYltN1e9anB3y2ynhVmdvuIBCkJGdH0hTExKDZRvXNr6hqhwIXs8JjYqesYbx0BOpQDD0o1VjbVQlOC-9MgXi]
> memory. I found the lanuch context lanuching TM container that
> "container memory = heap memory+ offHeapSizeMB" at the class
> org.apache.flink.runtime.clusterframework.ContaineredTaskManagerParameters
> from line 160 to 166 I set a safety margin for the whole memory container
> using. For example if the container limit 3g memory, the sum memory that
> "heap memory+ offHeapSizeMB" is equal to 2.4g to prevent the container
> being killed.Do we have the
> [ready-made|http://www.baidu.com/link?url=ylC8cEafGU6DWAdU9ADcJPNugkjbx6IjtqIIxJ9foX4_Yfgc7ctWmpEpQRettVmBiOy7Wfph7S1UvN5LiJj-G1Rsb--oDw4Z2OEbA5Fj0bC]
> solution or I can commit my solution
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