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From "Eugene Kirpichov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-1148) Port PAssert away from Aggregators
Date Thu, 23 Mar 2017 22:14:42 GMT

    [ https://issues.apache.org/jira/browse/BEAM-1148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15939312#comment-15939312
] 

Eugene Kirpichov commented on BEAM-1148:
----------------------------------------

One option is to let PAssert output the failures (or success) to a file in the job's temp
directory.

Another option: in case of success the pipeline should simply terminate successfully (even
if it's being run using "streaming" mode, by a runner that has a concept of modes - according
to the termination semantics); so it only remains to make sure that in case of failure the
whole pipeline fails rather than hangs. There should be an API to fail a pipeline, or to watch
failures within it. The treatment of failures, e.g. by Dataflow batch vs. streaming runners,
is inconsistent. That's probably topic for a separate JIRA.

> Port PAssert away from Aggregators
> ----------------------------------
>
>                 Key: BEAM-1148
>                 URL: https://issues.apache.org/jira/browse/BEAM-1148
>             Project: Beam
>          Issue Type: New Feature
>          Components: sdk-java-core
>            Reporter: Kenneth Knowles
>
> One step in the removal of Aggregators (in favor of Metrics) is to remove our reliance
on them for PAssert checking.



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