Upgrading while still having heal pending entries experiences

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Hi all,

We are facing problems with our current configuration in replica scheme and have many unhealed directory entries with "error 22" in the shd log, that then loop infinitely and so remain stuck.

[2022-09-11 08:28:04.346243 +0000] E [MSGID: 114031] [client-rpc-fops_v2.c:211:client4_0_mkdir_cbk] 0-client-2: remote operation failed. [{path=(null)}, {errno=22}, {error=Das Argument ist ungültig}]

There is a different thread regarding our non-healing volume and we followed the various suggestions (for which we thank everyone so much).

What we were wondering while assessing the risks of any of the last-resort suggested operations (e.g. removing-re-adding brick) is how high on that scale is upgrading our glusterfs version online or offline (and if makes some difference in terms of risk to do it offline respect to online for example).

Did you have any experience on this? We know the recommendation is to upgrade only after no healing entries are reported, but perhaps someone has had the same need as us (the behaviour is much like a bug as we have tried really many approaches) and had a successful story upgrading without having all entries healed before starting? The idea behind it is that if it is a bug that has been fixed now, then the healing entries will get "unstuck". We are currently on 9.2.

Best regards.


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