title: How to monitor Java heap space in JBossAS 6.1.0.Final
body: <p>We must have a bug in our code, but our production website servers die when JBossAS 6.1.0.Final puts out a ton of error messages saying "OutOfMemory Error: Java heap space".  I'm using a Nagios plugin to watch the jboss server.log for these errors, but that may not give us enough time to take the server off-line.  Servers are Centos 6.5, Java is 1.6.0_32-b32</p>
  
  <p>We used to run JMX Console, but security issues forced us to remove it.</p>
  
  <p>Any suggestions on another way I can find out the heap usage so I can write a better Nagios plugin and be more predictive until we find the problem?</p>
  
  <p>Thanks....Lyle</p>