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Directory :  /www/server/mysql/mysql-test/r/

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Current File : /www/server/mysql/mysql-test/r/flush_read_lock_kill.result
DROP TABLE IF EXISTS t1;
SET DEBUG_SYNC= 'RESET';
CREATE TABLE t1 (kill_id INT) engine = InnoDB;
INSERT INTO t1 VALUES(connection_id());
# Switching to connection 'default'.
# Start transaction.
BEGIN;
INSERT INTO t1 VALUES(connection_id());
# Ensure that COMMIT will pause once it acquires protection
# against its global read lock.
SET DEBUG_SYNC='ha_commit_trans_after_acquire_commit_lock SIGNAL acquired WAIT_FOR go';
# Sending:
COMMIT;
# Switching to 'con1'.
# Wait till COMMIT acquires protection against global read
# lock and pauses.
SET DEBUG_SYNC='now WAIT_FOR acquired';
# Sending:
FLUSH TABLES WITH READ LOCK;
# Switching to 'con2'.
SELECT ((@id := kill_id) - kill_id) FROM t1 LIMIT 1;
((@id := kill_id) - kill_id)
0
# Wait till FLUSH TABLES WITH READ LOCK blocks due
# to active COMMIT
# Kill connection 'con1'.
KILL CONNECTION @id;
# Switching to 'con1'.
# Try to reap FLUSH TABLES WITH READ LOCK, 
# it fail due to killed statement and connection.
Got one of the listed errors
# Switching to 'con2'.
# Resume COMMIT.
SET DEBUG_SYNC='now SIGNAL go';
# Switching to 'default'.
# Reaping COMMIT.
DROP TABLE t1;
SET DEBUG_SYNC= 'RESET';

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