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https://issues.apache.org/jira/browse/SPARK-49783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-49783:
-----------------------------------
Labels: pull-request-available (was: )
> Resource leak of spark yarn allocator
> -------------------------------------
>
> Key: SPARK-49783
> URL: https://issues.apache.org/jira/browse/SPARK-49783
> Project: Spark
> Issue Type: Bug
> Components: YARN
> Affects Versions: 3.5.0, 4.0.0
> Reporter: Junfan Zhang
> Priority: Major
> Labels: pull-request-available
>
> When the target < running containers number, the assigned containers from the
> resource manager will be skipped, but these containers are not released by
> invoking the amClient.releaseAssignedContainer , that will make these
> containers reserved into the Yarn resourceManager at least 10 minutes. And
> so, the cluster resource will be wasted at a high ratio.
> Another problem will happen that the vcore * seconds statistics from yarn
> side will be greater than the result from the spark event logs.
> From my statistics, the cluster resource waste ratio is ~25% if the spark
> jobs are exclusive in this cluster.
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