IP Hostname is not correct in some hosts.

[jc-fireball]

No description provided.

[davewhat]

I'm having issues running TChannel-Java with Hyperbahn on Vagrant boxes.

When I tcap, I see the following:

session=129 127.0.0.1:42779 --> 127.0.0.1:21300 frame=0 type=0x01
INIT REQUEST id=0x0000 (0) version=2
headers
  host_port: ip-10-12-55-225.us-west-2.compute.internal:49795
  process_name: java-process

session=129 ended src=127.0.0.1:42779 --> dst=127.0.0.1:21300 on lo

In the Hyperbahn log file I am seeing:

"error": {
  "type": "tchannel.invalid-init-host-port",
  "message": "invalid host:port string in init header",
  "hostPort": "ip-10-12-55-225.us-west-2.compute.internal:61708",
  "name": "TchannelInvalidInitHostPortError",
  "reason": "Expected host to contain IPv4 in \"ip-10-12-55-225.us-west-2.compute.internal:61708\"",
  "fullType": "tchannel.invalid-init-host-port"

I think the problem is that we have a string host name, and not just an IP address of xxx.xxx.xxx.xxx
Seems like TChannel.java is getting a DNS style host name.

I think the issue is

tchannel-java/tchannel-core/src/main/java/com/uber/tchannel/api/TChannel.java

Line 135 in a38de37

this.listeningHost = localAddress.getHostName();

[nath-uber]

Tested on my dev box and it should work
4262eac