1、Symptoms：Landing system suddenly found to become English, admin’s account password enter is true and can’t login 404 error, this is basically due to hard disk full or tmp directory space is full of cause.
Solution: df -hT check the system space usage to confirm the hard disk is almost full, then check the system log and temporary file space occupancy, the necessary clearance to free up hard disk space before normal landing, cleanup can refer to the following link.
astercc hard Disk cleanup reference：How to astercc hard Disk cleanup
2、Symptoms：Log in the system to enter the correct password Click login does not reflect the system hard disk is still have large space is not used, this situation is basically due to mysql astercc10 library damage caused, as follows.
Solution: View the mysql log will prompt table damage needs to be repaired, the implementation of mysql repair command until the table is no longer reported so far.