Server with raft protocol 2 joining cluster with raft protocol 3 #11867
Labels
stage/accepted
Confirmed, and intend to work on. No timeline committment though.
theme/raft
type/bug
Projects
Nomad version
1.2.3
Operating system and Environment details
CentOS Stream 8
Issue
In my configuration, I set
raft_protocol
to 3 some time ago to upgrade all my servers. Now that I'm upgrading to 1.2.3 I wanted to remove that hardcoded version in case at some point there's a version 4. I removed it from one server and I was surprised to see it rejoin the cluster with a protocol of 2:If I understand the documentation correctly, this is not supposed to be possible:
(https://www.nomadproject.io/docs/upgrade/upgrade-specific#upgrading-to-raft-protocol-3)
Reproduction steps
raft_protocol=3
raft_protocol
configuration from one noderaft_protocol=2
Expected Result
I expected node XXX30 to rejoin the cluster with
raft_protocol=3
even though that option was no longer forced by it's configuration.Actual Result
XXX30 rejoins with
raft_protocol=2
, even though the rest of the cluster is using 3.Job file (if appropriate)
Nomad Server logs (if appropriate)
Nomad Client logs (if appropriate)
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