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Current File : //home/usr.opt/mysql57/mysql-test/suite/innodb/t/high_prio_trx_5.test |
# Scenario: # T1= ({R(Z), R(B)}) # T2= ({R(C), R(B), W(B)}) # T3= ({R(B), W(B), C}, HIGH_PRIORITY) # # Outcome: T1 must commit, T3 must commit, T2 must commit # after T3 (no data change). --source include/have_innodb.inc --source include/have_debug_sync.inc --source include/count_sessions.inc CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY, c2 INT NOT NULL, c3 INT NOT NULL) ENGINE=InnoDB; INSERT INTO t1 VALUES (0, 0, 0); --connect(con1,localhost,root,,test) --connect(con2,localhost,root,,test) --connect(con3,localhost,root,,test) --echo --echo # On connection 1 --connection con1 START TRANSACTION READ ONLY; SELECT c1, c2 FROM t1 WHERE c1=0 LOCK IN SHARE MODE; --echo --echo # On connection 2 --connection con2 let $con2_id=`SELECT CONNECTION_ID()`; START TRANSACTION; --send UPDATE t1 SET c1=2 WHERE c1=0 AND c2=0 --echo --echo # On connection 3 --connection con3 --source include/start_transaction_high_prio.inc --replace_result $con2_id <con2_id> eval SET @con2_id = $con2_id; let $wait_timeout = 10; let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist WHERE id = @con2_id AND INFO = 'update t1 set c1=2 where c1=0 and c2=0' AND STATE = 'updating'; --source include/wait_condition.inc --sleep 1 SET DEBUG_SYNC='rec_lock_add_to_waitq SIGNAL signal1 WAIT_FOR waiting1'; --send UPDATE t1 SET c1=3 WHERE c1=0; --echo --echo # On connection 1 --connection con1 SET DEBUG_SYNC='now WAIT_FOR signal1'; SET DEBUG_SYNC='now SIGNAL waiting1'; COMMIT; --disconnect con1 --echo --echo # On connection 3 --connection con3 --reap COMMIT; --disconnect con3 --echo --echo # On connection 2 --connection con2 --reap COMMIT; --disconnect con2 --connection default --let $assert_text= 'There is a 3.0.0 in t1' --let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 3 AND t1.c2 = 0 AND t1.c3 = 0, count, 1] = 1 --source include/assert.inc --let $assert_text= 'There is no 0.0.0 in t1' --let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 0 AND t1.c2 = 0 AND t1.c3 = 0, count, 1] = 0 --source include/assert.inc --let $assert_text= 'There is no 2 in t1.c1' --let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 2, count, 1] = 0 --source include/assert.inc DROP TABLE t1; --source include/wait_until_count_sessions.inc