> The problem is in the ibdata1 file (about 450MB). Deleted other database > directories and it still crashes, deleted ibdata1 and it runs. > > How to bisect mariadb from git? Tried: > $ git bisect good mariadb-10.3.29 > $ git bisect bad mariadb-10.3.31 > the build process showed version 10.2 so I aborted it. > > Checked out mariadb-10.3.30 but dpkg-buildpackage failed with: > dh_install: mariadb-plugin-cassandra missing files: > etc/mysql/conf.d/cassandra.cnf
Some dependency was missing and Cassandra was not built. Note that the upstream repository is not identical to the one in Debian regarding the contents of debian/ directory. MariaDB builds without a cache take 30 mins each and there are all kinds of things going on. Doing bisect (fully correctly) on MariaDB is hard even for experienced developers. Your time is probably better spent doing some other kind of debugging. I recommend that you file a bug about this upstream, and try to attach relevant info from the error log, maybe a strace output etc. Upstream devs will guide you on what to debug next. One thing you could also try is to start the server with 10.3.29 and ensure that you have a clean shutdown (SET GLOBAL innodb_fast_shutdown=0; SHUTDOWN) and only after that start with the new 10.3.31 binary. Ref - https://mariadb.com/kb/en/shutdown/#see-also - https://www.percona.com/blog/2020/05/07/prepare-mysql-for-a-safe-shutdown/
