Something weird happens during application deployment in domain. EAP occupies too much memory after deploy operation in domain.

I run all instances locally (but I see the same in multinode tests) and I wasn't able to identify which process causes this. Neither jstat, visualvm nor other tools helped me, but I could overlook something.

Scenario is simple:

1. start master - host-master.xml
   master$ ./jboss-eap-7.1/bin/domain.sh --host-config=host-master.xml
2. start slave - host-slave.xml
   slave$ ./jboss-eap-7.1/bin/domain.sh --host-config=host-slave.xml -Djboss.domain.master.address=127.0.0.1 -Djboss.management.native.port=19999
3. measure occupied memory – all system, not only java (htop)
4. start cli
   master$ ./jboss-eap-7.1/bin/jboss-cli.sh -c
5. measure occupied memory – all system, not only java (htop)
6. deploy attached simple-servlet.war – modify it, include some big file, I used ~120MB mp4 file
   deploy /tmp/simple-servlet.war --all-server-groups
7. measure occupied memory – all system, not only java (htop)
8. restart domain
9. measure occupied memory – all system, not only java (htop)

Results are:

it seems that it started to happen with DR8