تنظیمات زیر پیشنهاد می شود.
اما باید log های innodb رو چک کنید دقیقا سایزشون چقدر هست :
کد:
[mysqld]
user=mysql
default-storage-engine=InnoDB
key-buffer-size=32M
myisam-recover=FORCE,BACKUP
max-allowed-packet=16M
max-connect-errors=1000000
datadir=/var/lib/mysql/
log-bin=/var/lib/mysql/mysql-bin
expire-logs-days=14
sync-binlog=1
tmp-table-size=32M
max-heap-table-size=32M
query-cache-type=0
query-cache-size=0
max-connections=500
thread-cache-size=50
open-files-limit=65535
table-definition-cache=1024
table-open-cache=2048
innodb-flush-method=O_DIRECT
innodb-log-files-in-group=2
innodb-log-file-size=512M
innodb-flush-log-at-trx-commit=1
innodb-file-per-table=1
innodb-buffer-pool-size=20G
log-queries-not-using-indexes=1
slow-query-log=1