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