Chern Yih Cheah created KAFKA-13879:
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Summary: Exponential backoff for reconnect does not work
Key: KAFKA-13879
URL: https://issues.apache.org/jira/browse/KAFKA-13879
Project: Kafka
Issue Type: Bug
Components: network
Affects Versions: 2.7.0
Reporter: Chern Yih Cheah
When a client connects to a SSL listener using PLAINTEXT security protocol,
after the TCP connection is setup, the client considers the channel setup is
complete (in reality the channel setup is not complete yet). The client issues
API version request after that. When issuing API version request, reconnection
exponential backoff is reset. Since the broker expects SSL handshake, client's
API version request will cause the connection to disconnect. Reconnect will
happen without exponential backoff since it has been reset.
[https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/ClusterConnectionStates.java#L249.]
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