search

MariaDB / mariadb-docker

Docker Official Image packaging for MariaDB
https://mariadb.org
GNU General Public License v2.0
787 stars 443 forks source link

Galera gcs_proto_ver downgraded on MariaDB 11+ #616

Closed betaphi closed 1 week ago

betaphi commented 1 month ago

When trying to update my Galera Cluster from MariaDB version 10.11 to 11.0 (and up), I get an error on the updated node while it tries to join the existing cluster:

2024-10-07 10:56:46 0 [ERROR] WSREP: ./gcs/src/gcs_group.cpp:group_check_proto_ver():341: Group requested gcs_proto_ver: 4, max supported by this node: 3.Upgrade the node before joining this group.Need to abort.

To me, it reads like the existing nodes in the cluster run version 4 of gcs_proto_ver but the one that is trying to join only runs version 3. This is strange, as I would suspect the new version of the MariaDB container to come with the latest version of Galera as well.

Is this a known issue?

grooverdan commented 1 month ago

It does look like your description is right.

gcs proto version was bumped in https://github.com/mariaDB/galera/commit/91f0090a05e96c3cc353b80d961ede45cefb9279#diff-dbc1b84ee7a13520e8ec09ccdd2fcbc65a28f9b5f4c66563e76f8b9c3d83ca29 very recently so will only be in the latest release.

Note by tags its in 26.4.19

Container versions:

$ podman run --rm  mariadb:10.11 dpkg -l | grep galera
ii  galera-4                26.4.19-ubu2204                         amd64        Replication framework for transactional applications

$ podman run --rm  mariadb:11.4 dpkg -l | grep galera
ii  galera-4                 26.4.19-ubu2404             amd64        Replication framework for transactional applications

If you're behind a version you'll be out of date:

$ podman run --rm  mariadb:10.11.8 dpkg -l | grep galera
ii  galera-4                26.4.18-ubu2204                         amd64        Replication framework for transactional applications

So bumping may work.

I'm not terribly happy with the way container upgrades work for Galera. I can't see a way a full SST will reliably work. So if you can share some good/bad experiences as to what does/doesn't work that would be useful to put into the documentation.

grooverdan commented 1 month ago

Note the 11.0 latest, 11.0.6, when EOL before the new galera version was added.

Watch the currently maintained versions - https://mariadb.org/about/#maintenance-policy hence listing 11.4 above.

$  podman run --rm  mariadb:11.0.6 dpkg -l | grep galera
ii  galera-4                26.4.18-ubu2204                         amd64        Replication framework for transactional applications