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/* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
DROP PROCEDURE IF EXISTS ps_setup_disable_instrument;
DELIMITER $$
CREATE DEFINER='root'@'localhost' PROCEDURE ps_setup_disable_instrument (
IN in_pattern VARCHAR(128)
)
COMMENT '
Description
-----------
Disables instruments within Performance Schema
matching the input pattern.
Parameters
-----------
in_pattern (VARCHAR(128)):
A LIKE pattern match (using "%in_pattern%") of events to disable
Example
-----------
To disable all mutex instruments:
mysql> CALL sys.ps_setup_disable_instrument(\'wait/synch/mutex\');
+--------------------------+
| summary |
+--------------------------+
| Disabled 155 instruments |
+--------------------------+
1 row in set (0.02 sec)
To disable just a the scpecific TCP/IP based network IO instrument:
mysql> CALL sys.ps_setup_disable_instrument(\'wait/io/socket/sql/server_tcpip_socket\');
+------------------------+
| summary |
+------------------------+
| Disabled 1 instruments |
+------------------------+
1 row in set (0.00 sec)
To enable all instruments:
mysql> CALL sys.ps_setup_disable_instrument(\'\');
+--------------------------+
| summary |
+--------------------------+
| Disabled 547 instruments |
+--------------------------+
1 row in set (0.01 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
MODIFIES SQL DATA
BEGIN
UPDATE performance_schema.setup_instruments
SET enabled = 'NO', timed = 'NO'
WHERE name LIKE CONCAT('%', in_pattern, '%');
SELECT CONCAT('Disabled ', @rows := ROW_COUNT(), ' instrument', IF(@rows != 1, 's', '')) AS summary;
END$$
DELIMITER ;
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