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Galera Issue: Node 1 Return BF Lock Wait Long

There is a Galera cluster with 3 nodes. The MariaDB is community 10.5.16 via RHEL 8.7 distros. We have got the following errors with a JBOSS application. I am not sure whether it is related to the issue of wsrep_slave_threads. It looks like some versions but not for all.

Answer Answered by Daniel Black in this comment.

MDEV-29684 was fixed in 10.5.19, not sure if its your case. Please report bug reports in https://jira.mariadb.org and include a backtrace.

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