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https://issues.apache.org/jira/browse/BEAM-10222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17150556#comment-17150556
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Kenneth Knowles commented on BEAM-10222:
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Had a suspicion that {{cpuShares}} was set to num CPUs, so I tested a job with
4 CPUs. It was still set to 2.
> Java11 only detects 1 CPU when running on Dataflow
> --------------------------------------------------
>
> Key: BEAM-10222
> URL: https://issues.apache.org/jira/browse/BEAM-10222
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Mikhail Gryzykhin
> Assignee: Kenneth Knowles
> Priority: P2
>
> When specifying the worker-type as "n1-highcpu-4" the resulting thread number
> is 4 when the pipeline is compiled by Java8, and only 1 when the pipeline is
> compiled by Java11.
> Specifying numberOfWorkerHarnessThreads does not change amount of detected
> threads.
> Amount of available CPUs is received via
> "Runtime.getRuntime().availableProcessors()"
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