Till Rohrmann created FLINK-3542:
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Summary: FlinkKafkaConsumer09 cannot handle changing number of
partitions
Key: FLINK-3542
URL: https://issues.apache.org/jira/browse/FLINK-3542
Project: Flink
Issue Type: Improvement
Components: Kafka Connector
Affects Versions: 1.0.0
Reporter: Till Rohrmann
Priority: Minor
The current {{FlinkKafkaConsumer09}} cannot handle increasing the number of
partitions of a topic while running. The consumer will simply leave the newly
created partitions out and thus miss all data which is written to the new
partitions. The reason seems to be a static assignment of partitions to
consumer tasks when the job is started.
We should either fix this behaviour or clearly document it in the online and
code docs.
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