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Posted to issues@beam.apache.org by "Ahmet Altay (JIRA)" <ji...@apache.org> on 2019/03/11 17:46:00 UTC

[jira] [Updated] (BEAM-6591) CassandraIO split does not work in some corner cases.

     [ https://issues.apache.org/jira/browse/BEAM-6591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ahmet Altay updated BEAM-6591:
------------------------------
    Fix Version/s:     (was: 2.11.0)
                   2.12.0

> CassandraIO split does not work in some corner cases.
> -----------------------------------------------------
>
>                 Key: BEAM-6591
>                 URL: https://issues.apache.org/jira/browse/BEAM-6591
>             Project: Beam
>          Issue Type: Bug
>          Components: io-java-cassandra
>            Reporter: Etienne Chauchot
>            Assignee: Etienne Chauchot
>            Priority: Major
>              Labels: triaged
>             Fix For: 2.12.0
>
>
> CassandraIO split uses token ranges to split data in the Read part of the IO. When one split ends up using the minimum token in the token ring, then the IO reads all the data in one split, leading to duplication. This is due to behavior of Cassandra: see https://issues.apache.org/jira/browse/CASSANDRA-14684



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