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Posted to dev@kafka.apache.org by "Guozhang Wang (JIRA)" <ji...@apache.org> on 2015/10/15 19:59:05 UTC

[jira] [Commented] (KAFKA-2654) Avoid calling Consumer.poll(0) in each iteration

    [ https://issues.apache.org/jira/browse/KAFKA-2654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14959303#comment-14959303 ] 

Guozhang Wang commented on KAFKA-2654:
--------------------------------------

github PR created: https://github.com/apache/kafka/pull/315

> Avoid calling Consumer.poll(0) in each iteration
> ------------------------------------------------
>
>                 Key: KAFKA-2654
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2654
>             Project: Kafka
>          Issue Type: Sub-task
>            Reporter: Guozhang Wang
>            Assignee: Yasuhiro Matsuda
>             Fix For: 0.9.1
>
>
> Currently we are calling consumer.poll() in each iteration though most time it is poll(0).
> poll(0) itself is not completely free since it involves a bunch of system calls, hence we'd better avoid calling it in each iteration.



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