I recently encountered a problem getting a headache, need help...
System consists of:
Two subsystems, called A, B (each running on a standalone tomcat instance), currently running on the same machine. A invoke B's service via spring httpInvoker(http). B system also invoke other system's services via http.
Symptoms:
1, the system starts to run normally after 10-15 days;
2, the system will run for a period of time after an exception: org.springframework.remoting.RemoteAccessException: Could not access HTTP invoker remote service at [http://xxx.xxx.xxx.xxx/remoting/call]; nested exception is java. net.SocketException: Permission denied: connect
3, when the exception occour, it continues, not only occasional .(it looks like some resources exhausted, but cpu rate < 5%, memory < 15%, network < 5%)
4, A, B when the system call fails, B system via http call to an external service also failed for the same exception.
5, closed two tomcat services, restart, and working properly.
So repeatedly (step 1 - 5), has not found the root reason.
Emvironment:
windows 2008 R2
tomcat7.0.42 x86_64
oralce-jdk-1.7.0_40
Any ideas?
