JBoss 7.2.0 Shuts down automatically, without leaving any trace in the logs

[raja777m]

Hello,

We use JBoss in our workplace, version 7.2.0; without any reason, the server shutdown itself, and other instances(like Java) on the server were fine and we checked with server team, that the actual server did not got restarted.

And in the log trace, I see this:

22:22:48,602 INFO  [org.jboss.web] (ServerService Thread Pool -- 79) JBAS018xxx: Unregister web context: /letters

  6103xxx JAVA_OPTS already set in environment; overriding default settings with values: -Xms512m -Xmx2048m -XX:MaxPermSize=1024m -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Ds un.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs= -Djava.awt.headless=true -Djboss.server.default.config=standalone.xml -Ddcpp.config       

Can someone please help me on where can I find some more information on this problem.

Once, We restarted the instance, it has been 24 hours and we did not face any problem, yet.

Thanks in advance.

[raja777m]

Diskspace looked good at the time of incident, more than 80% free space.

[gaoyonglu]

when cpu is high or There is no memory。 the linux will kill process。jboss will be killed。

1. check free memory

2. check CPU usage

3. check diskspace