I have rented a Centos6 server and running an Apache Tomcat 7 server with an Apache httpd server proxying it.
Sometimes my server gets locked and I cannot access it via putty even ping.
My question is: how can I be sure that this is about connection problems or application servers (I currently have a hibernate problem that causes the app servers not to respond because of unneeded heavy queries)?
Thanks in advance.
(PS: Fixing the problem by restarting the server)
EDIT: Following are the applications and props on my server:
*Apache httpd server --> proxy, *Apache Tomcat server --> app server, *Mysql DBMS
And got hd images appr. 69000 (99GB) serving from one folder.
EDIT2: The system comes back normal when I restart machine and run the servers again.