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From "Corentin Chary (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13090) Coalescing strategy sleep too much
Date Tue, 03 Jan 2017 16:39:58 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15795466#comment-15795466
] 

Corentin Chary commented on CASSANDRA-13090:
--------------------------------------------

Would you prefer count > 1 to start and then another patch to make it configurable (if
necessary, I'll run benchmarks).

limit isn't now + nanos / 16, it's now + nanos - nanos / 16, (or ~= now + nanos * 0.9, maybe
this last form is better ?)

> 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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