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From Ismaël Mejía (JIRA) <j...@apache.org>
Subject [jira] [Commented] (BEAM-2393) BoundedSource is not fault-tolerant in FlinkRunner Streaming mode
Date Wed, 28 Jun 2017 09:25:00 GMT

    [ https://issues.apache.org/jira/browse/BEAM-2393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16066199#comment-16066199
] 

Ismaël Mejía commented on BEAM-2393:
------------------------------------

Awesome!, that would be great if you find how to optimize it, I just returned the code back
to the version that passed the full tests so you can take a look. The problematic test is
testReadingSplitAtFraction because it takes 23s! but this is probably related to the number
of splits, I remember that Dan mentioned that this grew exponentially so maybe we we needed
to reduce it, and I was thinking about going in the Bigtable direction for this, making the
tests almost exactly like the Bigtable ones, but I hadn't taken a look at it after we worked
on this.


> BoundedSource is not fault-tolerant in FlinkRunner Streaming mode
> -----------------------------------------------------------------
>
>                 Key: BEAM-2393
>                 URL: https://issues.apache.org/jira/browse/BEAM-2393
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-flink
>            Reporter: Jingsong Lee
>            Assignee: Jingsong Lee
>
> {{BoundedSourceWrapper}} does not implement snapshot() and restore(), when the failure
to restart, it will send duplicate data.



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