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https://issues.apache.org/jira/browse/RATIS-613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16890375#comment-16890375
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Tsz Wo Nicholas Sze commented on RATIS-613:
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That's great, thanks [~ljain].
> StateMachineUpdater should limit the number of apply transaction calls
> ----------------------------------------------------------------------
>
> Key: RATIS-613
> URL: https://issues.apache.org/jira/browse/RATIS-613
> Project: Ratis
> Issue Type: Bug
> Reporter: Lokesh Jain
> Assignee: Lokesh Jain
> Priority: Major
> Labels: ozone
> Attachments: RATIS-613.001.patch, RATIS-613.002.patch
>
>
> Currently StateMachineUpdater applies all the transactions until the
> committed index. In cases where there is a huge difference between applied
> and committed index, all these transactions would be pending in the state
> machine and can take a lot of heap space. Such a scenario was seen in the
> Ozone cluster where a large amount of heap was taken by unapplied
> transactions leading to frequent GC pauses.
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