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https://issues.apache.org/jira/browse/RATIS-814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lokesh Jain updated RATIS-814:
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Attachment: flamegraph.svg
> High CPU usage by TimeoutScheduler due to JDK bug JDK-8129861
> -------------------------------------------------------------
>
> Key: RATIS-814
> URL: https://issues.apache.org/jira/browse/RATIS-814
> Project: Ratis
> Issue Type: Bug
> Reporter: Lokesh Jain
> Assignee: Lokesh Jain
> Priority: Major
> Attachments: RATIS-814.001.patch, flamegraph.svg
>
>
> TimeoutScheduler creates an instance of ScheduledThreadPoolExecutor with 0
> core pool threads. There is a bug in JDK
> [https://bugs.openjdk.java.net/browse/JDK-8129861] which causes high CPU
> usage if ScheduledThreadPoolExecutor is instantiated with 0 core pool
> threads. The bug was fixed in Java 9.
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