Fix assignment lost, on illegal generation, during a commit

confluentinc / librdkafka

The Apache Kafka C/C++ library

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Fix assignment lost, on illegal generation, during a commit #4908

Open emasab opened 6 days ago

emasab commented 6 days ago

Closes: #4059.

Commits during a rebalance could cause to lose the assignment if the generation id was bumped by second join group request. Solved by not rejoining the group in case an illegal generation error happens during a rebalance.

Happening since v1.6.0.

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