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  1. Apache Cassandra
  2. CASSANDRA-14540

Internode messaging handshake sends wrong messaging version number

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      With the refactor of internode messaging to netty in 4.0, we abstracted the protocol handshakes messages into a class and handlers. There is a bug when the initiator of the connection sends, in the third message of the handshake, it's own default protocol version number (MessagingService.current_version), rather than the negotiated version. This was not causing any obvious problems when CASSANDRA-8457 was initially committed, but the bug is exposed after CASSANDRA-7544. The problem is during rolling upgrades of 3.0/3.X to 4.0, nodes cannot correctly connect.

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              jasobrown Jason Brown
              jasobrown Jason Brown
              Jason Brown
              Dinesh Joshi
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