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https://issues.apache.org/jira/browse/FLINK-16299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17046248#comment-17046248
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Yangze Guo edited comment on FLINK-16299 at 2/27/20 7:17 AM:
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I'd like to work on it.
was (Author: karmagyz):
I'd like work on it.
> Release containers recovered from previous attempt in which TaskExecutor is
> not started.
> ----------------------------------------------------------------------------------------
>
> Key: FLINK-16299
> URL: https://issues.apache.org/jira/browse/FLINK-16299
> Project: Flink
> Issue Type: Improvement
> Components: Deployment / YARN
> Reporter: Xintong Song
> Priority: Major
>
> As discussed in FLINK-16215, on Yarn deployment, {{YarnResourceManager}}
> starts a new {{TaskExecutor}} in two steps:
> # Request a new container from Yarn
> # Starts a {{TaskExecutor}} process in the allocated container
> If JM failover happens between the two steps, in the new attempt
> {{YarnResourceManager}} will not start {{TaskExecutor}} processes in
> recovered containers. That means such containers are neither used nor
> released.
> A potential fix to this problem, is to query form the container status by
> calling {{NMClientAsync#getContainerStatusAsync}}, and release the containers
> whose state is {{NEW}}, keeps only those whose state is {{RUNNING}} and
> waiting for them to register.
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