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https://issues.apache.org/jira/browse/FLINK-17024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann updated FLINK-17024:
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Description:
Follow the discussion in this PR[1].
Currently, {{AkkaRpcServcie#getExecutor}} returns Akka's underlying dispatcher
thread pool. It should not be used since it will take the risk to affect the
main thread of rpc endpoint. We could return a custom thread pool instead. The
it is safe to used for some I/O operations in the {{RpcEndpoint}}, for
example, {{stopPod}} in {{KubernetesResourceManager}}. An elastic thread
pool(from 4 up to 16) is enough.
[1]. [https://github.com/apache/flink/pull/11427#discussion_r402738678]
was:
Follow the discussion in this PR[1].
Currently, {{RpcEndpoint#getRpcService#getExecutor}} return the akka underlying
dispatcher thread pool. It should not be used since it will take the risk to
affect the main thread of rpc endpoint. We could return a custom thread pool
instead. The it is safe to used for some I/O operations in the
{{RpcEndpoint}}, for example, {{stopPod}} in {{KubernetesResourceManager}}. An
elastic thread pool(from 4 up to 16) is enough.
[1]. [https://github.com/apache/flink/pull/11427#discussion_r402738678]
> Make AkkaRpcService#getExecutor return a custom thread pool
> -----------------------------------------------------------
>
> Key: FLINK-17024
> URL: https://issues.apache.org/jira/browse/FLINK-17024
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Reporter: Yang Wang
> Priority: Major
>
> Follow the discussion in this PR[1].
> Currently, {{AkkaRpcServcie#getExecutor}} returns Akka's underlying
> dispatcher thread pool. It should not be used since it will take the risk to
> affect the main thread of rpc endpoint. We could return a custom thread pool
> instead. The it is safe to used for some I/O operations in the
> {{RpcEndpoint}}, for example, {{stopPod}} in {{KubernetesResourceManager}}.
> An elastic thread pool(from 4 up to 16) is enough.
>
> [1]. [https://github.com/apache/flink/pull/11427#discussion_r402738678]
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