We recently upgraded mysql database which is running on mysql server version 5.5.8. After the upgrade sometimes we are seeing the simple upgrade staements taking more than 1
Suggestions:
1) Check the size of your log files
LINK: Lots of "Query End" states in MySQL, all connections used in a matter of minutes
2) Make sure "id" has an index
3) Look at various MySql tuning and configuration options. For example: innodb_flush_log_at_trx_commit = 0
LINK: "query end" step very long at random times
WARNING: consider carefully before disabling log flushing. Look here for more details:
LINK: https://dba.stackexchange.com/questions/12611/is-it-safe-to-use-innodb-flush-log-at-trx-commit-2