119 lines
4.6 KiB
SQL
119 lines
4.6 KiB
SQL
-- Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; version 2 of the License.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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--
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-- View: innodb_lock_waits
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--
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-- Give a snapshot of which InnoDB locks transactions are waiting for.
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-- The lock waits are ordered by the age of the lock descending.
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--
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-- Versions: 5.1+ (5.1 requires InnoDB Plugin with I_S tables)
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--
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-- mysql> SELECT * FROM x$innodb_lock_waits\G
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-- *************************** 1. row ***************************
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-- wait_started: 2014-11-11 13:39:20
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-- wait_age: 00:00:07
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-- wait_age_secs: 7
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-- locked_table: `db1`.`t1`
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-- locked_index: PRIMARY
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-- locked_type: RECORD
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-- waiting_trx_id: 867158
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-- waiting_trx_started: 2014-11-11 13:39:15
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-- waiting_trx_age: 00:00:12
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-- waiting_trx_rows_locked: 0
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-- waiting_trx_rows_modified: 0
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-- waiting_pid: 3
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-- waiting_query: UPDATE t1 SET val = val + 1 WHERE id = 2
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-- waiting_lock_id: 867158:2363:3:3
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-- waiting_lock_mode: X
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-- blocking_trx_id: 867157
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-- blocking_pid: 4
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-- blocking_query: UPDATE t1 SET val = val + 1 + SLEEP(10) WHERE id = 2
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-- blocking_lock_id: 867157:2363:3:3
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-- blocking_lock_mode: X
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-- blocking_trx_started: 2014-11-11 13:39:11
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-- blocking_trx_age: 00:00:16
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-- blocking_trx_rows_locked: 1
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-- blocking_trx_rows_modified: 1
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-- sql_kill_blocking_query: KILL QUERY 4
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-- sql_kill_blocking_connection: KILL 4
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-- 1 row in set (0.01 sec)
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--
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CREATE OR REPLACE
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ALGORITHM = TEMPTABLE
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DEFINER = 'mysql.sys'@'localhost'
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SQL SECURITY INVOKER
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VIEW innodb_lock_waits (
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wait_started,
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wait_age,
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wait_age_secs,
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locked_table,
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locked_index,
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locked_type,
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waiting_trx_id,
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waiting_trx_started,
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waiting_trx_age,
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waiting_trx_rows_locked,
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waiting_trx_rows_modified,
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waiting_pid,
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waiting_query,
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waiting_lock_id,
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waiting_lock_mode,
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blocking_trx_id,
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blocking_pid,
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blocking_query,
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blocking_lock_id,
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blocking_lock_mode,
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blocking_trx_started,
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blocking_trx_age,
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blocking_trx_rows_locked,
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blocking_trx_rows_modified,
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sql_kill_blocking_query,
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sql_kill_blocking_connection
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) AS
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SELECT r.trx_wait_started AS wait_started,
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TIMEDIFF(NOW(), r.trx_wait_started) AS wait_age,
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TIMESTAMPDIFF(SECOND, r.trx_wait_started, NOW()) AS wait_age_secs,
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rl.lock_table AS locked_table,
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rl.lock_index AS locked_index,
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rl.lock_type AS locked_type,
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r.trx_id AS waiting_trx_id,
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r.trx_started as waiting_trx_started,
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TIMEDIFF(NOW(), r.trx_started) AS waiting_trx_age,
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r.trx_rows_locked AS waiting_trx_rows_locked,
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r.trx_rows_modified AS waiting_trx_rows_modified,
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r.trx_mysql_thread_id AS waiting_pid,
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sys.format_statement(r.trx_query) AS waiting_query,
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rl.lock_id AS waiting_lock_id,
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rl.lock_mode AS waiting_lock_mode,
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b.trx_id AS blocking_trx_id,
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b.trx_mysql_thread_id AS blocking_pid,
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sys.format_statement(b.trx_query) AS blocking_query,
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bl.lock_id AS blocking_lock_id,
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bl.lock_mode AS blocking_lock_mode,
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b.trx_started AS blocking_trx_started,
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TIMEDIFF(NOW(), b.trx_started) AS blocking_trx_age,
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b.trx_rows_locked AS blocking_trx_rows_locked,
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b.trx_rows_modified AS blocking_trx_rows_modified,
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CONCAT('KILL QUERY ', b.trx_mysql_thread_id) AS sql_kill_blocking_query,
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CONCAT('KILL ', b.trx_mysql_thread_id) AS sql_kill_blocking_connection
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FROM information_schema.innodb_lock_waits w
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INNER JOIN information_schema.innodb_trx b ON b.trx_id = w.blocking_trx_id
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INNER JOIN information_schema.innodb_trx r ON r.trx_id = w.requesting_trx_id
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INNER JOIN information_schema.innodb_locks bl ON bl.lock_id = w.blocking_lock_id
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INNER JOIN information_schema.innodb_locks rl ON rl.lock_id = w.requested_lock_id
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ORDER BY r.trx_wait_started;
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