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|
# Creates or drops a stored function as a part of debug-sync based
# synchronization mechanism between replication servers.
#
# Parameters:
# $create_or_drop= [create]
# $server_master = [master]
# $server_slave = [slave]
if (!$create_or_drop)
{
--let $create_or_drop=create
}
if (`select strcmp('$create_or_drop', 'create') = 0`)
{
if (!$server_master)
{
--let $server_master=master
}
if (!$server_slave)
{
--let $server_slave=slave
}
--connection $server_master
# Use a stored function to inject a debug_sync into the appropriate THD.
# The function does nothing on the master, and on the slave it injects the
# desired debug_sync action(s).
SET sql_log_bin=0;
--delimiter ||
CREATE FUNCTION foo(x INT, d1 VARCHAR(500), d2 VARCHAR(500))
RETURNS INT DETERMINISTIC
BEGIN
RETURN x;
END
||
--delimiter ;
SET sql_log_bin=1;
--connection $server_slave
SET sql_log_bin=0;
--delimiter ||
CREATE FUNCTION foo(x INT, d1 VARCHAR(500), d2 VARCHAR(500))
RETURNS INT DETERMINISTIC
BEGIN
IF d1 != '' THEN
SET debug_sync = d1;
END IF;
IF d2 != '' THEN
SET debug_sync = d2;
END IF;
RETURN x;
END
||
--delimiter ;
SET sql_log_bin=1;
}
if (`select strcmp('$create_or_drop', 'drop') = 0`)
{
if (!$server_slave)
{
--let $server_slave=slave=
}
if (!$server_master)
{
--let $server_master=master
}
--connection $server_slave
SET DEBUG_SYNC='RESET';
--connection $server_master
SET DEBUG_SYNC='RESET';
DROP FUNCTION foo;
}
|
