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Posted to issues@ratis.apache.org by "Tsz Wo Nicholas Sze (JIRA)" <ji...@apache.org> on 2019/05/03 03:07:00 UTC

[jira] [Commented] (RATIS-529) Leader should limit pending requests to avoid OOM

    [ https://issues.apache.org/jira/browse/RATIS-529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16832170#comment-16832170 ] 

Tsz Wo Nicholas Sze commented on RATIS-529:
-------------------------------------------

r529_20190502.patch: adds some tests.

> Leader should limit pending requests to avoid OOM
> -------------------------------------------------
>
>                 Key: RATIS-529
>                 URL: https://issues.apache.org/jira/browse/RATIS-529
>             Project: Ratis
>          Issue Type: Improvement
>          Components: server
>    Affects Versions: 0.3.0
>            Reporter: Nilotpal Nandi
>            Assignee: Tsz Wo Nicholas Sze
>            Priority: Major
>         Attachments: r529_20190416.patch, r529_20190502.patch
>
>
> A leader with slow followers can cause the leader to keep accumulating lots of pending requests in its queue. The jira proposes to rate limit incoming requests based on the maximum number of pending requests in the queue.



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