It might be a 'ulimit' issue, you might deploy one war after the other and see whether the number is increased after increasing the ulimit.
Also it can be a kernel restriction and you need to change the config here and may restart the system.
1 of 1 people found this helpful
Hi...thank you for answer
Yes it's true ulimit issue.
I've solved the problem by increasing user level fd limit in /etc/security/limits.conf
jboss soft 10240
jboss hard 10240
Which jboss is user that running jboss application server.
My last mistake only increase file descriptor but not for user.