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https://issues.apache.org/jira/browse/BEAM-3485?focusedWorklogId=95603&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-95603
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ASF GitHub Bot logged work on BEAM-3485:
----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Apr/18 16:41
Start Date: 26/Apr/18 16:41
Worklog Time Spent: 10m
Work Description: iemejia commented on a change in pull request #5124:
[BEAM-3485] Fix split generation for Cassandra clusters
URL: https://github.com/apache/beam/pull/5124#discussion_r184446576
##########
File path:
sdks/java/io/cassandra/src/main/java/org/apache/beam/sdk/io/cassandra/CassandraIO.java
##########
@@ -197,6 +196,12 @@ private CassandraIO() {}
return builder().setConsistencyLevel(consistencyLevel).build();
}
+ public Read<T> withMinNumberOfSplits(Integer minNumberOfSplits) {
Review comment:
Can you please document this method and explain that it is optional and what
is the intended behavior.
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Issue Time Tracking
-------------------
Worklog Id: (was: 95603)
Time Spent: 5.5h (was: 5h 20m)
> 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: Alexander Dejanovski
> Priority: Major
> Time Spent: 5.5h
> 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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