Our architecture is 3-node galera cluster - 2 DB nodes + 1 arbitrator in different locations. Plus running haproxy as the front end.
One of the DB nodes (node 2) hit signal 6. The error log shows a SQL shortly after this error:
Query (0x7fc6243ba4b0): select nextval(noti_msg_seq) into @nextSeq from dual
Please advise the cause and fix. Thanks!
I'm going to upload the MariaDB error log at both nodes for your review.
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Bug
Major