Hey All,
My database is tuned pretty well overall but I am seeing statements like this in my MySQL slow query log:
# User@Host: heatware_dotcom[heatware_dotcom] @ localhost [] Id: 91681
# Query_time: 1.086505 Lock_time: 0.000000 Rows_sent: 1 Rows_examined: 0
SET timestamp=1460134851;
SELECT GET_LOCK('a7642ffa05034f140c3fc90be7efd272828a600a', 300) AS ci_session_lock;
# User@Host: heatware_dotcom[heatware_dotcom] @ localhost [] Id: 91682
# Query_time: 1.112502 Lock_time: 0.000000 Rows_sent: 1 Rows_examined: 0
SET timestamp=1460134851;
SELECT GET_LOCK('a7642ffa05034f140c3fc90be7efd272828a600a', 300) AS ci_session_lock;
# User@Host: heatware_dotcom[heatware_dotcom] @ localhost [] Id: 91683
# Query_time: 1.132454 Lock_time: 0.000000 Rows_sent: 1 Rows_examined: 0
SET timestamp=1460134851;
SELECT GET_LOCK('a7642ffa05034f140c3fc90be7efd272828a600a', 300) AS ci_session_lock;
# User@Host: heatware_dotcom[heatware_dotcom] @ localhost [] Id: 91684
# Query_time: 1.165734 Lock_time: 0.000000 Rows_sent: 1 Rows_examined: 0
SET timestamp=1460134851;
SELECT GET_LOCK('a7642ffa05034f140c3fc90be7efd272828a600a', 300) AS ci_session_lock;
My website is NOT high traffic and may only have a handful of users online concurrently. My ci_sessions table is setup for INNODB although, I did not see these GET_LOCK() slow queries when I temporarily switched it over to MyISAM.
Any ideas why these are showing up in slow query log?
