[BEAM-6591] CassandraIO split does not work in some corner cases.

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Fix Version/s: 2.12.0
• Component/s: io-java-cassandra
• Assignee: Etienne Chauchot
• Reporter: Etienne Chauchot
• Created: 05/Feb/19 16:12
• Updated: 16/May/20 14:01
• Resolved: 18/Feb/19 08:58

Description

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