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https://issues.apache.org/jira/browse/CASSANDRA-13090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15795484#comment-15795484
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Ariel Weisberg commented on CASSANDRA-13090:
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Ouch. I am just not getting this right today.
I would be happy to have it as one patch. I think if we set it to 8 it will
still be better than 128 in a heavy backlog , but it's also still safe in that
it's way more coalescing than we could possibly benefit from.
I think tweaking the number has diminishing returns because you only hit this
when the backlog grows and in that case you are already not looking at
coalescing as the problem or the solution.
> Coalescing strategy sleep too much
> ----------------------------------
>
> Key: CASSANDRA-13090
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13090
> Project: Cassandra
> Issue Type: Bug
> Components: Streaming and Messaging
> Reporter: Corentin Chary
> Fix For: 3.x
>
> Attachments: 0001-Fix-wait-time-coalescing-CASSANDRA-13090.patch
>
>
> With the current code maybeSleep is called even if we managed to take
> maxItems out of the backlog. In this case we should really avoid sleeping
> because it means that backlog is building up.
> I'll send a patch shortly.
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