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# # Bug #30215068 BINLOG ROTATION DEADLOCK WHEN INNODB CONCURRENCY LIMIT SETTED # connect con1, localhost, root,,; select @@innodb_thread_concurrency; @@innodb_thread_concurrency 1 CREATE TABLE t1 (c1 INT) Engine=InnoDB; CREATE TABLE t2 (c1 INT, c2 int, c3 varchar(200)) Engine=InnoDB; SET @debug_save= @@SESSION.DEBUG; SET SESSION DEBUG = '+d,force_rotate'; SET DEBUG_SYNC = 'stop_binlog_rotation_after_acquiring_lock_log SIGNAL rotate_stopped WAIT_FOR proceed_rotate'; INSERT INTO t1 VALUES (1);; connect con2, localhost, root,,; SET DEBUG_SYNC= 'now WAIT_FOR rotate_stopped'; UPDATE t2 SET C2=1 WHERE C1 = 1;; connect con3, localhost, root,,; SET DEBUG_SYNC= 'now SIGNAL proceed_rotate'; connection con1; SET @@SESSION.DEBUG= @debug_save; connection con2; connection default; disconnect con1; disconnect con2; disconnect con3; DROP TABLE t1,t2;