Chia-Ping Tsai created KAFKA-16639:
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Summary: AsyncKafkaConsumer#close does not send heartbeat to leave
group
Key: KAFKA-16639
URL: https://issues.apache.org/jira/browse/KAFKA-16639
Project: Kafka
Issue Type: Bug
Reporter: Chia-Ping Tsai
Assignee: Chia-Ping Tsai
This bug can be reproduced by immediately closing a consumer which is just
created.
The root cause is that we skip the new heartbeat used to leave group when there
is a in-flight heartbeat request
([https://github.com/apache/kafka/blob/5de5d967adffd864bad3ec729760a430253abf38/clients/src/main/java/org/apache/kafka/clients/consumer/internals/HeartbeatRequestManager.java#L212).]
It seems to me the simple solution is that we create a heartbeat request when
meeting above situation and then send it by pollOnClose
([https://github.com/apache/kafka/blob/5de5d967adffd864bad3ec729760a430253abf38/clients/src/main/java/org/apache/kafka/clients/consumer/internals/RequestManager.java#L62).]
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