ASF GitHub Bot commented on KAFKA-5470:

Github user asfgit closed the pull request at:


> Replace -XX:+DisableExplicitGC with -XX:+ExplicitGCInvokesConcurrent in 
> kafka-run-class
> ---------------------------------------------------------------------------------------
>                 Key: KAFKA-5470
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5470
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: Ismael Juma
>            Assignee: Ismael Juma
>            Priority: Critical
>             Fix For: 1.0.0
> This is important because Bits.reserveMemory calls System.gc() hoping to free 
> native memory in order to avoid throwing an OutOfMemoryException. This call 
> is currently a no-op due to -XX:+DisableExplicitGC.
> It's worth mentioning that -XX:MaxDirectMemorySize can be used to increase 
> the amount of native memory available for allocation of direct byte buffers.
> Hongyuan Li pointed out the issue with the usage of -XX:+DisableExplicitGC 
> in: 
> https://issues.apache.org/jira/browse/KAFKA-5444?focusedCommentId=16054129&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16054129

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