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https://issues.apache.org/jira/browse/CASSANDRA-8969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208680#comment-15208680
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Jeremiah Jordan commented on CASSANDRA-8969:
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[~slebresne] the issue he is talking about is when a node gets overloaded such
that requests start backing up. If I am issuing 100 req/s and something
happens to stall things for 10 seconds (say some other node that my requests go
to stalls), with a 1 second timeout I only ever have 100 requests in flight.
With a 10 second timeout I could have 1000 requests in flight on the
coordinator.
> Add indication in cassandra.yaml that rpc timeouts going too high will cause
> memory build up
> --------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-8969
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8969
> Project: Cassandra
> Issue Type: Improvement
> Components: Configuration
> Reporter: Jeremy Hanna
> Assignee: Jeremy Hanna
> Priority: Minor
> Labels: lhf
> Fix For: 3.x
>
> Attachments: 8969.txt
>
>
> It would be helpful to communicate that setting the rpc timeouts too high may
> cause memory problems on the server as it can become overloaded and has to
> retain the in flight requests in memory. I'll get this done but just adding
> the ticket as a placeholder for memory.
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