35 lines
933 B
SQL
35 lines
933 B
SQL
|
-- Debug Bot Performance Issues
|
||
|
|
-- Run this while server is running to check for blocking queries
|
||
|
|
|
||
|
|
-- Check for long-running queries
|
||
|
|
SELECT
|
||
|
|
TIME,
|
||
|
|
STATE,
|
||
|
|
INFO,
|
||
|
|
COMMAND
|
||
|
|
FROM INFORMATION_SCHEMA.PROCESSLIST
|
||
|
|
WHERE COMMAND != 'Sleep'
|
||
|
|
AND TIME > 1
|
||
|
|
ORDER BY TIME DESC
|
||
|
|
LIMIT 20;
|
||
|
|
|
||
|
|
-- Check connection pool usage
|
||
|
|
SELECT
|
||
|
|
PROCESSLIST_STATE as State,
|
||
|
|
COUNT(*) as Count
|
||
|
|
FROM performance_schema.threads
|
||
|
|
WHERE PROCESSLIST_DB IN ('auth', 'characters', 'world')
|
||
|
|
GROUP BY PROCESSLIST_STATE;
|
||
|
|
|
||
|
|
-- Check for table locks
|
||
|
|
SELECT
|
||
|
|
r.trx_id waiting_trx_id,
|
||
|
|
r.trx_mysql_thread_id waiting_thread,
|
||
|
|
r.trx_query waiting_query,
|
||
|
|
b.trx_id blocking_trx_id,
|
||
|
|
b.trx_mysql_thread_id blocking_thread,
|
||
|
|
b.trx_query blocking_query
|
||
|
|
FROM information_schema.innodb_lock_waits w
|
||
|
|
INNER JOIN information_schema.innodb_trx b ON b.trx_id = w.blocking_trx_id
|
||
|
|
INNER JOIN information_schema.innodb_trx r ON r.trx_id = w.requesting_trx_id;
|