jitsi-meet: Too many open files, jvb becomes unavailable after some time

My problem is that I can enter a room, but when arrives the new participant, we get the timeout of ~24 seconds error.

So I first started thinking it was prosody #1386

that’s why I tried

service prosody restart
service jitsi-videobridge restart
service jicofo restart

after that, we could meet

next attempt, reduce one restart

service jitsi-videobridge restart
service jicofo restart

it works too after this operation

service jicofo restart

same…

conclusion: there is a problem with jicofo: after some time, it looses something

this is the final of a meeting according to /var/log/jitsi/jicofo.log, and after that you can see Health check failed

Note: I masked private information as:

• user1: wherever appeared a nick (1 time)
• meet.example.com: custom domain for the service (several times)
• myroom: custom room inside jitsi (several times)

Jicofo 2017-03-09 17:42:00.567 INFO: [36] org.jitsi.jicofo.ChatRoomRoleAndPresence.log() Owner has left the room !
Jicofo 2017-03-09 17:42:00.567 INFO: [36] org.jitsi.jicofo.JitsiMeetConferenceImpl.log() Member myroom@conference.meet.example.com/64891030 is leaving
Jicofo 2017-03-09 17:42:00.568 WARNING: [36] org.jitsi.jicofo.JitsiMeetConferenceImpl.log() Participant not found for myroom@conference.meet.example.com/64891030 terminated already or never started ?
Jicofo 2017-03-09 17:42:00.568 INFO: [36] org.jitsi.jicofo.FocusManager.log() Disposed conference for room: myroom@conference.meet.example.com conference count: 0
Jicofo 2017-03-09 21:38:10.053 WARNING: [15] org.jitsi.jicofo.JvbDoctor.log() Health check failed on: jitsi-videobridge.meet.example.com error: <error code="500" type="WAIT"><internal-server-error xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/><text xml:lang="en" xmlns="urn:ietf:params:xml:ns:xmpp-stanzas">Failed to acquire DatagramSocket specific to STUN communication</text></error>
Jicofo 2017-03-09 21:38:10.053 INFO: [39] org.jitsi.jicofo.BridgeSelector.removeJvbAddress().192 Removing JVB: jitsi-videobridge.meet.example.com
Jicofo 2017-03-09 21:38:10.054 INFO: [39] org.jitsi.jicofo.JvbDoctor.log() Stopping health-check task for: jitsi-videobridge.meet.example.com

Here I put what happens next day when we try to join. It fails, until I restart jicofo

https://gist.github.com/pedro-nonfree/b4f46a1980e25ca45bc65599b32b001b

If you need other logs, tell me

Thanks