--slave-parallel-max-queued

This is a command-line option for the mariadbd & mysqld commands (arg: Required).

Limit on how much memory SQL threads should use per parallel replication thread when reading ahead in the relay log looking for opportunities for parallel replication. Only used when --slave-parallel-threads > 0.

See also: mariadbd & mysqld for MariaDB Community Server 10.6, in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS