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https://issues.apache.org/jira/browse/BEAM-3485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16438364#comment-16438364
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Alexander Dejanovski commented on BEAM-3485:
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I've just pushed a new version that allows the user to specify the minimum
number of desired splits.
> CassandraIO.read() splitting produces invalid queries
> -----------------------------------------------------
>
> Key: BEAM-3485
> URL: https://issues.apache.org/jira/browse/BEAM-3485
> Project: Beam
> Issue Type: Bug
> Components: io-java-cassandra
> Reporter: Eugene Kirpichov
> Assignee: Alexey Romanenko
> Priority: Major
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> See
> [https://stackoverflow.com/questions/48090668/how-to-increase-dataflow-read-parallelism-from-cassandra/48131264?noredirect=1#comment83548442_48131264]
> As the question author points out, the error is likely that token($pk) should
> be token(pk). This was likely masked by BEAM-3424 and BEAM-3425, and the
> splitting code path effectively was never invoked, and was broken from the
> first PR - so there are likely other bugs.
> When testing this issue, we must ensure good code coverage in an IT against a
> real Cassandra instance.
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