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https://issues.apache.org/jira/browse/FLINK-10214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16594673#comment-16594673
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Chesnay Schepler commented on FLINK-10214:
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As outlined in FLINK-9455 this behavior was introduced in 1.5, and is planned
to be fixed for 1.7. If this is a serious issue for you, please consider
switching the cluster to legacy mode.
https://ci.apache.org/projects/flink/flink-docs-master/ops/config.html#mode
> why is job applying as many TMs as default parallelism when starting, each
> parallelism is 1
> -------------------------------------------------------------------------------------------
>
> Key: FLINK-10214
> URL: https://issues.apache.org/jira/browse/FLINK-10214
> Project: Flink
> Issue Type: Task
> Components: Cluster Management, TaskManager, YARN
> Affects Versions: 1.5.0
> Reporter: lzh9
> Priority: Major
>
> If I set TM number=6, slot num each TM=8, memory each TM=4G, the job will
> apply 48 TMs, and use only one slot each, total memory usage is 192G. A few
> minutes later, it will release 40TMs, everything will be normal.
> Is there any reason about it?
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