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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GEARPUMP-358) Performance regression due to costly watermark calculation
Date Wed, 18 Oct 2017 14:20:01 GMT

    [ https://issues.apache.org/jira/browse/GEARPUMP-358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16209406#comment-16209406
] 

ASF GitHub Bot commented on GEARPUMP-358:
-----------------------------------------

Github user manuzhang commented on the issue:

    https://github.com/apache/incubator-gearpump/pull/232
  
    LGTM


> Performance regression due to costly watermark calculation
> ----------------------------------------------------------
>
>                 Key: GEARPUMP-358
>                 URL: https://issues.apache.org/jira/browse/GEARPUMP-358
>             Project: Apache Gearpump
>          Issue Type: Bug
>            Reporter: Huafeng Wang
>
> For example, in streaming example SOL, everytime SOLStreamProducer output a message to
downstream, it will send a Watermark message to itself, which will trigger watermark calculation.
We should avoid flooding Watermark messages.



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