Show processlist has a large number of query end statu
Colleagues who have developed feedback on whether the database has a locked table.
Use the command show processlist, found that a large number of updates or insert data connection card in the query end state, check the load of the server, found that there is no problem with memory, CPU load is also very low, toss about for a long time did not get done, and then check the hard disk, found that the hard disk has been written full, and then clear out part of the useless files, after releasing the hard disk space, the system returns to normal.