[jira] [Commented] (SAMZA-1645) A few issues found by BEAM stress test

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/SAMZA-1645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16434520#comment-16434520
 ] 

ASF GitHub Bot commented on SAMZA-1645:
---

Github user asfgit closed the pull request at:

https://github.com/apache/samza/pull/469


> A few issues found by BEAM stress test
> --
>
> Key: SAMZA-1645
> URL: https://issues.apache.org/jira/browse/SAMZA-1645
> Project: Samza
>  Issue Type: Bug
>Reporter: Xinyu Liu
>Assignee: Xinyu Liu
>Priority: Major
>
> # Setting high priority on intermediate streams caused starvation on certain 
> tasks. Due to the intermediate message kept coming, the input streams are not 
> consumed and watermark messages are not generated, which makes downstream 
> accumulates large state and makes processing slower thus make starvation 
> worse.
>  # Watermark broadcast needs to check whether the watermark is advanced.



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[jira] [Commented] (SAMZA-1645) A few issues found by BEAM stress test

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/SAMZA-1645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16434124#comment-16434124
 ] 

ASF GitHub Bot commented on SAMZA-1645:
---

GitHub user xinyuiscool opened a pull request:

https://github.com/apache/samza/pull/469

SAMZA-1645: A few issues found by BEAM stress test

1. Revert the priority set to intermediate streams.
2. Fix a watermark propagation condition

You can merge this pull request into a Git repository by running:

$ git pull https://github.com/xinyuiscool/samza SAMZA-1645

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/samza/pull/469.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #469


commit 54c2b4f01c85e40c83bb27d1d03aad22b3e680a3
Author: xinyuiscool 
Date:   2018-04-11T01:46:23Z

SAMZA-1645: A few issues found by BEAM stress test




> A few issues found by BEAM stress test
> --
>
> Key: SAMZA-1645
> URL: https://issues.apache.org/jira/browse/SAMZA-1645
> Project: Samza
>  Issue Type: Bug
>Reporter: Xinyu Liu
>Assignee: Xinyu Liu
>Priority: Major
>
> # Setting high priority on intermediate streams caused starvation on certain 
> tasks. Due to the intermediate message kept coming, the input streams are not 
> consumed and watermark messages are not generated, which makes downstream 
> accumulates large state and makes processing slower thus make starvation 
> worse.
>  # Watermark broadcast needs to check whether the watermark is advanced.



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