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https://issues.apache.org/jira/browse/FLINK-17970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann resolved FLINK-17970.
-----------------------------------
Fix Version/s: 1.10.2
Resolution: Fixed
Fixed via
master:
3bf3f0cd0d7dc2009ef89c9ef81555b29f080705
b4163021c3b793758e2473cc6567efbb976239e3
1.11.0:
b02b165cb9c56911899fabd65bbde69203ae6ad5
de40933a8045fcecbd7afd6ceda3c56ef75dea49
1.10.2:
a43716a9372230368e7d9fa77df746265d65dfee
a8b1fac87c4a53942b9a2703092662dffc13c30f
> Increase default value of IO pool executor to 4 * #cores
> --------------------------------------------------------
>
> Key: FLINK-17970
> URL: https://issues.apache.org/jira/browse/FLINK-17970
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.11.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.0, 1.10.2
>
>
> Currently, the default value of
> {{ClusterOptions.CLUSTER_IO_EXECUTOR_POOL_SIZE}} is #cores. I propose to
> increase it to 4 * #cores to support a higher load of blocking IO operations.
> Moreover, I propose to use a cached thread pool instead of a fixed thread
> pool. That way, only those use cases which have high IO load will actually
> occupy the required resources to start more threads.
> Last but not least, I propose to change the config option name from
> {{cluster.io-executor.pool-size}} to {{cluster.io-pool.size}} which is a bit
> shorter.
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