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d60915692c
Implement that if first retry fails, we can do another attempt. Add testcases to test multi-retry that succeeds in second attempt, and multi-retry that eventually fails due to exceeding slave_trans_retries.
149 lines
3.1 KiB
Text
149 lines
3.1 KiB
Text
include/rpl_init.inc [topology=1->2]
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*** Test retry of transactions that fail to replicate due to deadlock or similar temporary error. ***
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ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
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CREATE TABLE t1 (a int PRIMARY KEY, b INT) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1,1);
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SET sql_log_bin=0;
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CREATE FUNCTION foo(x INT, d1 VARCHAR(500), d2 VARCHAR(500))
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RETURNS INT DETERMINISTIC
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BEGIN
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RETURN x;
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END
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SET sql_log_bin=1;
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SET @old_parallel_threads=@@GLOBAL.slave_parallel_threads;
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include/stop_slave.inc
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SET GLOBAL slave_parallel_threads=5;
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include/start_slave.inc
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SET sql_log_bin=0;
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CREATE FUNCTION foo(x INT, d1 VARCHAR(500), d2 VARCHAR(500))
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RETURNS INT DETERMINISTIC
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BEGIN
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IF d1 != '' THEN
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SET debug_sync = d1;
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END IF;
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IF d2 != '' THEN
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SET debug_sync = d2;
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END IF;
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RETURN x;
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END
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SET sql_log_bin=1;
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include/stop_slave.inc
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SET gtid_seq_no = 100;
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BEGIN;
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INSERT INTO t1 VALUES (2,1);
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UPDATE t1 SET b=b+1 WHERE a=1;
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INSERT INTO t1 VALUES (3,1);
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COMMIT;
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SELECT * FROM t1 ORDER BY a;
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a b
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1 2
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2 1
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3 1
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SET @old_dbug= @@GLOBAL.debug_dbug;
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SET GLOBAL debug_dbug="+d,rpl_parallel_simulate_temp_err_gtid_0_x_100";
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include/start_slave.inc
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SET GLOBAL debug_dbug=@old_dbug;
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retries
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1
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SELECT * FROM t1 ORDER BY a;
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a b
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1 2
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2 1
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3 1
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*** Test that double retry works when the first retry also fails with temp error ***
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include/stop_slave.inc
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SET gtid_seq_no = 100;
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SET @old_server_id = @@server_id;
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SET server_id = 10;
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BEGIN;
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INSERT INTO t1 VALUES (4,1);
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UPDATE t1 SET b=b+1 WHERE a=1;
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INSERT INTO t1 VALUES (5,1);
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INSERT INTO t1 VALUES (6,1);
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COMMIT;
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SET server_id = @old_server_id;
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SELECT * FROM t1 ORDER BY a;
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a b
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1 3
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2 1
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3 1
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4 1
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5 1
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6 1
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SET @old_dbug= @@GLOBAL.debug_dbug;
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SET GLOBAL debug_dbug="+d,rpl_parallel_simulate_temp_err_gtid_0_x_100,rpl_parallel_simulate_double_temp_err_gtid_0_x_100";
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include/start_slave.inc
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SET GLOBAL debug_dbug=@old_dbug;
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retries
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2
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SELECT * FROM t1 ORDER BY a;
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a b
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1 3
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2 1
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3 1
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4 1
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5 1
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6 1
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*** Test too many retries, eventually causing failure. ***
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include/stop_slave.inc
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SET gtid_seq_no = 100;
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SET @old_server_id = @@server_id;
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SET server_id = 11;
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BEGIN;
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INSERT INTO t1 VALUES (7,1);
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UPDATE t1 SET b=b+1 WHERE a=1;
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INSERT INTO t1 VALUES (8,1);
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INSERT INTO t1 VALUES (9,1);
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COMMIT;
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SET server_id = @old_server_id;
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SELECT * FROM t1 ORDER BY a;
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a b
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1 4
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2 1
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3 1
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4 1
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5 1
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6 1
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7 1
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8 1
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9 1
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SET sql_log_bin=0;
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CALL mtr.add_suppression("Slave worker thread retried transaction 10 time\\(s\\) in vain, giving up");
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CALL mtr.add_suppression("Slave: Deadlock found when trying to get lock; try restarting transaction");
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SET sql_log_bin=1;
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SET @old_dbug= @@GLOBAL.debug_dbug;
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SET GLOBAL debug_dbug="+d,rpl_parallel_simulate_temp_err_gtid_0_x_100,rpl_parallel_simulate_infinite_temp_err_gtid_0_x_100";
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START SLAVE;
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include/wait_for_slave_sql_error.inc [errno=1213]
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SET GLOBAL debug_dbug=@old_dbug;
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retries
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10
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SELECT * FROM t1 ORDER BY a;
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a b
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1 3
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2 1
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3 1
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4 1
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5 1
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6 1
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STOP SLAVE IO_THREAD;
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include/start_slave.inc
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SELECT * FROM t1 ORDER BY a;
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a b
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1 4
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2 1
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3 1
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4 1
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5 1
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6 1
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7 1
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8 1
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9 1
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include/stop_slave.inc
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SET GLOBAL slave_parallel_threads=@old_parallel_threads;
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include/start_slave.inc
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DROP TABLE t1;
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DROP function foo;
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include/rpl_end.inc
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