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https://issues.apache.org/jira/browse/RATIS-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz-wo Sze reassigned RATIS-1804:
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Assignee: Tsz-wo Sze
> Limit the number of outstanding append entires
> ----------------------------------------------
>
> Key: RATIS-1804
> URL: https://issues.apache.org/jira/browse/RATIS-1804
> Project: Ratis
> Issue Type: Improvement
> Components: server
> Reporter: Tsz-wo Sze
> Assignee: Tsz-wo Sze
> Priority: Major
>
> The following is an observation from [~William Song]:
> {quote}In some of our scenarios, this problem happens when a new leader is
> elected and start sending AppendEntries to a slow follower. Unfortunately,
> this slow follower is going through a GC pause, so these AppendEntries just
> accumulates at gRPC buffer. When the slow follower comes around and starts
> dealing with these piled RPCs, it immediately finds the first AppendEntries
> nextIndex is inconsistent. So it replies INCONSISTENT to all of these
> accumulated AE RPCs, all with the same nextIndex.
> {quote}
> See [https://github.com/apache/ratis/pull/832#issuecomment-1451186915]
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