GC logging addition to Tomcat

Add the following to CATALINA_OPTS

 -verbose:gc  -XX:+PrintGCDetails  -XX:+PrintGCTimeStamps  -Xloggc:/home/PATH_TO_LOG/gc.log

Command to remove files older than N days

The below command removes files older than 2 days in the current directory

sudo find .  -mtime +2 -exec rm {} \;

Monitoring open connections in MySQL

Use the following commands

show status like '%onn%';

show processlist