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-- Copyright (c) 2014, 2015, 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_enable_thread;
DELIMITER $$
CREATE DEFINER='mariadb.sys'@'localhost' PROCEDURE ps_setup_enable_thread (
IN in_connection_id BIGINT
)
COMMENT '
Description
-----------
Enable the given connection/thread in Performance Schema.
Parameters
-----------
in_connection_id (BIGINT):
The connection ID (PROCESSLIST_ID from performance_schema.threads
or the ID shown within SHOW PROCESSLIST)
Example
-----------
mysql> CALL sys.ps_setup_enable_thread(3);
+------------------+
| summary |
+------------------+
| Enabled 1 thread |
+------------------+
1 row in set (0.01 sec)
To enable the current connection:
mysql> CALL sys.ps_setup_enable_thread(CONNECTION_ID());
+------------------+
| summary |
+------------------+
| Enabled 1 thread |
+------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
MODIFIES SQL DATA
BEGIN
UPDATE performance_schema.threads
SET instrumented = 'YES'
WHERE processlist_id = in_connection_id;
SELECT CONCAT('Enabled ', @rows := ROW_COUNT(), ' thread', IF(@rows != 1, 's', '')) AS summary;
END$$
DELIMITER ;
|
