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Posted to dev@kafka.apache.org by "Eno Thereska (JIRA)" <ji...@apache.org> on 2017/02/15 14:36:41 UTC

[jira] [Commented] (KAFKA-4768) Single-request latency for streams can be very high

    [ https://issues.apache.org/jira/browse/KAFKA-4768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15867928#comment-15867928 ] 

Eno Thereska commented on KAFKA-4768:
-------------------------------------

This is actually not a real problem since it's because of caching. The default commit interval is 30 seconds and it can be dialed down.

> Single-request latency for streams can be very high
> ---------------------------------------------------
>
>                 Key: KAFKA-4768
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4768
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 0.10.2.0
>            Reporter: Eno Thereska
>             Fix For: 0.10.3.0
>
>
> When running SimpleBenchmark.java with just 1 request and measuring the latency, we observe that it can be very high for some topologies, like count(). Latency can be as high as 30 seconds. 



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