mariadb/mysql-test/t/flush_block_commit_notembedded.test
cc05440836 Bug #49741 test files contain explicit references to bin/relay-log positions
Some of the test cases reference to binlog position and
these position numbers are written into result explicitly.
It is difficult to maintain if log event format changes. 

There are a couple of cases explicit position number appears, 
we handle them in different ways
A. 'CHANGE MASTER ...' with MASTER_LOG_POS or/and RELAY_LOG_POS options
   Use --replace_result to mask them.
B. 'SHOW BINLOG EVENT ...'
   Replaced by show_binlog_events.inc or wait_for_binlog_event.inc. 
   show_binlog_events.inc file's function is enhanced by given
   $binlog_file and $binlog_limit.
C. 'SHOW SLAVE STATUS', 'show_slave_status.inc' and 'show_slave_status2.inc'
   For the test cases just care a few items in the result of 'SHOW SLAVE STATUS',
   only the items related to each test case are showed.
   'show_slave_status.inc' is rebuild, only the given items in $status_items
   will be showed.
   'check_slave_is_running.inc' and 'check_slave_no_error.inc'
   and 'check_slave_param.inc' are auxiliary files helping
   to show running status and error information easily.
2010-05-24 21:54:08 +08:00

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# Let's see if FLUSH TABLES WITH READ LOCK blocks COMMIT of existing
# transactions.
# We verify that we did not introduce a deadlock.
# This is intended to mimick how mysqldump and innobackup work.
--source include/have_log_bin.inc
# And it requires InnoDB
--source include/have_log_bin.inc
--source include/have_innodb.inc
# Save the initial number of concurrent sessions
--source include/count_sessions.inc
--echo # Establish connection con1 (user=root)
connect (con1,localhost,root,,);
--echo # Establish connection con2 (user=root)
connect (con2,localhost,root,,);
# FLUSH TABLES WITH READ LOCK should block writes to binlog too
--echo # Switch to connection con1
connection con1;
CREATE TABLE t1 (a INT) ENGINE=innodb;
RESET MASTER;
SET AUTOCOMMIT=0;
INSERT t1 VALUES (1);
--echo # Switch to connection con2
connection con2;
FLUSH TABLES WITH READ LOCK;
--source include/show_binlog_events.inc
--echo # Switch to connection con1
connection con1;
send COMMIT;
--echo # Switch to connection con2
connection con2;
sleep 1;
--source include/show_binlog_events.inc
UNLOCK TABLES;
--echo # Switch to connection con1
connection con1;
reap;
DROP TABLE t1;
SET AUTOCOMMIT=1;
--echo # Switch to connection default and close connections con1 and con2
connection default;
disconnect con1;
disconnect con2;
# Wait till all disconnects are completed
--source include/wait_until_count_sessions.inc