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From "Zhiwen Sun (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-20692) unknowing delay in event timeline
Date Wed, 10 May 2017 10:47:05 GMT

     [ https://issues.apache.org/jira/browse/SPARK-20692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhiwen Sun updated SPARK-20692:
-------------------------------
    Description: 
Spark streaming job with 1s interval.

Process time of micro batch suddenly became to 4s while is is usually 0.4s .

When we check where the time spent, we find a unknown delay in job. 

There is no executor computing or shuffle reading. It is about 4s blank in event timeline,


event timeline snapshot is in attachment.


  was:
Spark streaming job with 1s interval.

Process time of micro batch suddenly became to 4s while is is usually 0.4s .

when we check where time spent, we find a unknown delay in job. there is no executor computing
or shuffle reading. About 4s blank in event timeline, 

event timeline snapshot is in attachment.



> unknowing delay in event timeline
> ---------------------------------
>
>                 Key: SPARK-20692
>                 URL: https://issues.apache.org/jira/browse/SPARK-20692
>             Project: Spark
>          Issue Type: Bug
>          Components: DStreams
>    Affects Versions: 1.6.2
>         Environment: Spark 1.6.1 + kafka 0.8.2
>            Reporter: Zhiwen Sun
>         Attachments: screenshot-1.png
>
>
> Spark streaming job with 1s interval.
> Process time of micro batch suddenly became to 4s while is is usually 0.4s .
> When we check where the time spent, we find a unknown delay in job. 
> There is no executor computing or shuffle reading. It is about 4s blank in event timeline,

> event timeline snapshot is in attachment.



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