Online upgrade - 9.x to 10.0

[Marco Fais <evilmf@xxxxxxxxx>]

Hi all,

is the online upgrade from 9.x to 10.0 supported?

I am experimenting with it in our test cluster and following the procedure I always end up with the upgraded node having the peers in the "peer rejected" status.

In upgraded node logs I can see:

[2021-11-18 22:21:43.752585 +0000] E [MSGID: 106010] [glusterd-utils.c:3827:glusterd_compare_friend_volume] 0-management: Version of Cksums Backup_Storage differ. local cksum = 2467304182, remote cksum = 998029999 on peer ovirt-node3
-storage
[2021-11-18 22:21:43.752743 +0000] I [MSGID: 106493] [glusterd-handler.c:3821:glusterd_xfer_friend_add_resp] 0-glusterd: Responded to ovirt-node3-storage (0), ret: 0, op_ret: -1 

And in one of the peers I have similar messages:

[2021-11-18 22:21:43.744106 +0000] E [MSGID: 106010] [glusterd-utils.c:3844:glusterd_compare_friend_volume] 0-management: Version of Cksums Backup_Storage differ. local cksum = 998029999, remote cksum = 2467304182 on peer 192.168.30.1
[2021-11-18 22:21:43.744233 +0000] I [MSGID: 106493] [glusterd-handler.c:3893:glusterd_xfer_friend_add_resp] 0-glusterd: Responded to 192.168.30.1 (0), ret: 0, op_ret: -1
[2021-11-18 22:21:43.756298 +0000] I [MSGID: 106493] [glusterd-rpc-ops.c:474:__glusterd_friend_add_cbk] 0-glusterd: Received RJT from uuid: acb80b35-d6ac-4085-87cd-ba69ff3f81e6, host: 192.168.30.1, port: 0 

(I have tried with gluster v Backup_Storage heal as per instructions).

Trying to restart the upgraded glusterd node doesn't help. I have also tried to clean up /var/lib/glusterd without success.

Am I missing something?

Downgrading again to 9.3 works again. All my volumes are distributrd_replicate and the cluster is composed by 3 nodes.

Thanks,
Marco

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