[MDEV-27598] WSREP: unserialize error invalid protocol version - Protocol error Created: 2022-01-24  Updated: 2023-12-21  Resolved: 2022-09-14

Status: Closed
Project: MariaDB Server
Component/s: wsrep
Affects Version/s: 10.5.13, 10.5
Fix Version/s: N/A

Type: Bug Priority: Critical
Reporter: Jaroslav Assignee: Jan Lindström (Inactive)
Resolution: Incomplete Votes: 0
Labels: None


 Description   

We can see in our local environment lot of logs with following warnings

2021-12-24 12:19:21 0 [Warning] WSREP: unserialize error invalid protocol version 2: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:21 2247987 [Warning] Aborted connection 2247987 to db: 'unconnected' user: 'unauthenticated' host: '10.36.0.0' (This connection closed normally without authentication)
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 1: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 6: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 6: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 5: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 2: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 2: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 2: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:23 0 [Warning] WSREP: unserialize error invalid protocol version 2: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133
 
2021-12-24 12:19:48 0 [Warning] WSREP: unserialize error invalid protocol version 4: 71 (Protocol error)
 
	 at /home/buildbot/buildbot/build/gcomm/src/gcomm/datagram.hpp:unserialize():133

Any explanation why this can happening? Is it a bug or something else? Warning seems to be repeating over and over in random times seems so.

 Comments   
Comment by Jan Lindström (Inactive) [ 2022-08-17 ]

jaroslav Can you please provide full error logs, node configuration and some information how to reproduce. You can get more information using --wsrep-debug=1 setting.

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