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New Feature: ============ This patch adds a new system variable, @@slave_max_statement_time, which limits the execution time of s slave’s events that implements an equivalent to @@max_statement_time for slave applier. Reviewed By: ============ Andrei Elkin <andrei.elkin@mariadb.com>
111 lines
3.8 KiB
Plaintext
111 lines
3.8 KiB
Plaintext
#
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# Purpose:
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# This test ensures that the slave can limit the execution time of its
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# events via the global system variable @@slave_max_statement_time.
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#
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# Methodology:
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# This test uses the following test cases to ensure that a slave will
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# correctly limit the execution time of its events:
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# 1) Using a serial slave, the SQL thread should time out when its underlying
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# event executes for longer than @@slave_max_statement_time.
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# 2) Using a parallel slave, a worker thread should time out when its
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# underlying event executes for longer than @@slave_max_statement_time.
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# 3) Load-based log events (from LOAD DATA INFILE) should time out if their
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# execution time exceeds @@slave_max_statement_time
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# 4) Locally executed long running statements should not time out due to
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# @@slave_max_statement_time.
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#
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# References:
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# MDEV-27161: Add option for SQL thread to limit maximum execution time per
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# query replicated
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#
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--source include/have_innodb.inc
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--source include/master-slave.inc
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--echo #
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--echo # Set up
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--echo #
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--connection master
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SET STATEMENT sql_log_bin=0 FOR CALL mtr.add_suppression("Unsafe statement written to the binary log using statement format");
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SET STATEMENT sql_log_bin=0 FOR CALL mtr.add_suppression("Unsafe statement written to the binary log using statement format");
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--connection slave
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SET STATEMENT sql_log_bin=0 FOR CALL mtr.add_suppression("Slave log event execution was interrupted");
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SET STATEMENT sql_log_bin=0 FOR CALL mtr.add_suppression("Unsafe statement written to the binary log using statement format");
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SET @save_slave_max_statement_time=@@GLOBAL.slave_max_statement_time;
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--let $with_lock= 1
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--echo #
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--echo # Test Case 1) Using a serial slave, the SQL thread should time out when
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--echo # its underlying event executes for longer than @@slave_max_statement_time.
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--echo #
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--source include/rpl_slave_max_statement_time.inc
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--echo #
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--echo # Test Case 2) Using a parallel slave, a worker thread should time out
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--echo # when its underlying event executes for longer than
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--echo # @@slave_max_statement_time
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--echo #
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--source include/stop_slave.inc
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SET @old_parallel_threads=@@GLOBAL.slave_parallel_threads;
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SET @old_parallel_mode=@@GLOBAL.slave_parallel_mode;
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SET GLOBAL slave_parallel_threads=2;
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SET GLOBAL slave_parallel_mode='optimistic';
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--source include/start_slave.inc
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--source include/rpl_slave_max_statement_time.inc
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--source include/stop_slave.inc
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SET GLOBAL slave_parallel_mode=@old_parallel_mode;
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SET GLOBAL slave_parallel_threads=@old_parallel_threads;
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--source include/start_slave.inc
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--echo #
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--echo # Test Case 3) Load-based log events (from LOAD DATA INFILE) should time
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--echo # out if their execution time exceeds @@slave_max_statement_time
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--echo #
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--let $use_load_data= 1
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--source include/rpl_slave_max_statement_time.inc
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--let $use_load_data=
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--echo #
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--echo # Test Case 4) Locally executed long running statements should not time
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--echo # out due to @@slave_max_statement_time
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--echo #
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--connection slave
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--source include/stop_slave.inc
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SET @old_slave_max_statement_time=@@GLOBAL.slave_max_statement_time;
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SET @old_gtid_domain_id=@@GLOBAL.gtid_domain_id;
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SET @@GLOBAL.slave_max_statement_time=0.75;
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SET @@GLOBAL.gtid_domain_id=1;
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--source include/start_slave.inc
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CREATE TABLE t2 (a int);
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SET STATEMENT sql_log_bin=0 FOR INSERT INTO t2 SELECT SLEEP(1);
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--let $t2_count= `SELECT COUNT(*) FROM t2`
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if ($t2_count != 1)
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{
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--die Local long running insert statement should have completed
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}
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DROP TABLE t2;
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--source include/stop_slave.inc
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SET GLOBAL gtid_domain_id=@old_gtid_domain_id;
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SET GLOBAL slave_max_statement_time=@old_slave_max_statement_time;
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--source include/start_slave.inc
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--echo # Cleanup
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--source include/stop_slave.inc
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SET GLOBAL slave_max_statement_time=@save_slave_max_statement_time;
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--source include/start_slave.inc
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--source include/rpl_end.inc
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--echo # End of rpl_slave_max_statement_time.test
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