Cluster Edge-Origin Reconnect

[mekya]

Steps to Reproduce

1. Publish stream to the Transcoder (ant1.mlan in my case).
2. Play it from the Edge (ant2.mlan).
3. Get the source video ports from the MongoDB server:

> db.StreamInfo.find()
{ "_id" : ObjectId("5ca353dad9f02f00f9565767"), "className" : "io.antmedia.cluster.StreamInfo", "streamId" : "bench_v10_1", "height" : 640, "width" : 1138, "videoBitrate" : 600000, "audioBitrate" : 64000, "videoRTimebase" : 20, "audioRTimebase" : 48000, "host" : "10.10.175.52", "videoPort" : 35549, "audioPort" : 43967 }
{ "_id" : ObjectId("5ca353dad9f02f00f9565766"), "className" : "io.antmedia.cluster.StreamInfo", "streamId" : "bench_v10_1", "height" : 480, "width" : 854, "videoBitrate" : 150000, "audioBitrate" : 64000, "videoRTimebase" : 20, "audioRTimebase" : 48000, "host" : "10.10.175.52", "videoPort" : 44893, "audioPort" : 38373 }```
4. Block these ports on the Transcoder:
```ant1.mlan:~ # iptables -A INPUT -p tcp --destination-port 35549 -j DROP
ant1.mlan:~ # iptables -A INPUT -p tcp --destination-port 44893 -j DROP
ant1.mlan:~ # iptables -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
-A INPUT -p tcp -m tcp --dport 35549 -j DROP
-A INPUT -p tcp -m tcp --dport 44893 -j DROP```
5. Video stop playing from the Edge as expected.
6. Remove blocking rules from the Transcoder:
```ant1.mlan:~ # iptables -D INPUT -p tcp --destination-port 35549 -j DROP
ant1.mlan:~ # iptables -D INPUT -p tcp --destination-port 44893 -j DROP
ant1.mlan:~ # iptables -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT```
7. Video still unavailable from the Edge despite the fact of open ports.
8. Restart the Edge server (docker container in my case)
```root@ant2:~# docker restart antmedia-edge1```
9. Video stream became available from the Edge.

*Expected Result*

After restoring connectivity between the Edge and the Transcoder video stream should play normally.

*Actual Result*

After a temporary loss of connection, the stream became permanently unavailable from the Edge. (edited)