Recently (about a month ago) I noticed that alot of my databse access scripts were failing intermitently. It was anoying, but I have only now gotten the time to look into the problem. It turns out that my mysql server processes are dying at irregular intervals (varying from 1 to 20 minutes or so). If a script gets executed while they are being restarted, it fails.
Debian uses safe_mysql to start/restart the server processes. If I run this as normal from init.d, the only thing that shows up in the logs is that the server is getting restarted (in mysql.err):
040308 14:21:14 mysqld restarted
/usr/sbin/mysqld: ready for connections
Number of processes running now: 0
In the normal log, there is no single query that seems to cause the server to die: in fact, it often seems to die w/out any queries being posted at all.
If I run safe_mysqld from the console, I see this whenever the server restarts:
/usr/bin/safe_mysqld: line 275: 25633 Killed $NOHUP_NICENESS $ledir/$MYSQLD $defaults --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR $USER_OPTION --pid-file=$pid_file --skip-locking >>$err_log 2>&1
Number of processes running now: 0 040308 14:04:44 mysqld restarted
If I run mysqld straight from the console I get this (after a little whiel of the server running):
# mysqld
mysqld: ready for connections
Killed
I've checked/repaired all fo the tables in the database and found no major errors.
Anybody have any ideas what might be causing the server to restart like this?
-Ian
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