mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 03:52:35 +01:00
592a10d079
Problem:- When we issue FTWRL with shutdown in parallel, there is race between FTWRL and shutdown. Shutdown might destroy the mutex (pool->LOCK_rpl_thread_pool) before FTWRL can lock it. So we can get crash on FTWRL thread Solution:- mysql_mutex_destroy(pool->LOCK_rpl_thread_pool) should wait for FTWRL thread to complete its work , and then destroy. So slave_prepare_for_shutdown will just deactivate the pool, and mutex is destroyed later in end_slave()
17 lines
540 B
Text
17 lines
540 B
Text
#
|
|
# MDEV-22370 safe_mutex: Trying to lock uninitialized mutex at
|
|
# /data/src/10.4-bug/sql/rpl_parallel.cc, line 470 upon shutdown during FTWRL
|
|
#
|
|
# Purpose of this test case to test crash while FTWRL and shutdown is in race
|
|
# condition
|
|
# Shutdown can execute first and destroy the mutex making mutex_lock in pool_mark_busy
|
|
# to crash
|
|
|
|
--source include/have_debug.inc
|
|
--connect (con1,localhost,root,,)
|
|
SET DEBUG_DBUG='+d,mark_busy_mdev_22370';
|
|
--send
|
|
FLUSH TABLES WITH READ LOCK;
|
|
|
|
--connection default
|
|
--source include/restart_mysqld.inc
|