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wsrep_slave_threads subtracts from max_connections

my.cnf:

max_connections=200
wsrep_slave_threads=400
# /etc/init.d/mysql restart ;  mysql -u openquery 
 * Stopping MariaDB database server mysqld                                                                                          [ OK ] 
 * Starting MariaDB database server mysqld                                                                                          [ OK ] 
 * Checking for corrupt, not cleanly closed and upgrade needing tables.
ERROR 1040 (HY000): Too many connections
# ERROR 1040 (HY000): Too many connections

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