Lighthouse Incorrectly Reports That HTTP API Address Is in Use When Metrics Port Is in Use

[SeaMonkey82]

Description

Lighthouse Incorrectly Reports That HTTP API Address Is in Use When Metrics Port Is in Use

Version

48f73b2
rustup 1.22.1 (b01adbbc3 2020-07-08)

Present Behaviour

➜  ~ sudo ss -tulnp | grep 5059
[sudo] password for seamonkey:
➜  ~ lighthouse bn --graffiti "poappyHaPQaBPnZOlKI+N3zD4XKfz9UB" --eth1-endpoint http://192.168.0.2:8545 --http --enr-address 1.2.3.4 --enr-tcp-port 13433 --enr-udp-port 13433 --port 13433 -d ~/.eth2/lighthouse/pyrmont --metrics --testnet pyrmont --http-port 5059
Nov 21 17:37:25.590 WARN Ethereum 2.0 is pre-release. This software is experimental
Nov 21 17:37:25.590 INFO Lighthouse started                      version: Lighthouse/v0.3.5-48f73b21
Nov 21 17:37:25.590 INFO Configured for testnet                  name: pyrmont
Nov 21 17:37:25.590 INFO Data directory initialised              datadir: /home/seamonkey/.eth2/lighthouse/pyrmont
Nov 21 17:37:25.631 INFO Starting beacon chain                   method: resume, service: beacon
Nov 21 17:37:30.943 INFO Block production enabled                method: json rpc via http, endpoint: http://192.168.0.2:8545
Nov 21 17:37:30.979 INFO Beacon chain initialized                head_slot: 0, head_block: 0x6a89…bb87, head_state: 0x2bb2…58c4, service: beacon
Nov 21 17:37:30.979 INFO Timer service started                   service: node_timer
Nov 21 17:37:30.979 INFO UPnP Attempting to initialise routes    service: UPnP
Nov 21 17:37:30.980 INFO Libp2p Service                          peer_id: 16Uiu2HAm49nFWHAPKyTVfnwyYqAXLEJ9Xtpmb4hxecDq12wZW9Jh, service: libp2p
Nov 21 17:37:30.980 INFO ENR Initialised                         tcp: Some(13433), udp: Some(13433), ip: Some(1.2.3.4), id: 0xbbfb..c3bc, seq: 1, enr: enr:-LK4QJFsnWEYy48bIhvRisjTsUWWHtGzhByCQAiWNOWKLLpEPknIAB6ajPK-arhtPjliw5B6oI6ook5CTpaJsTvYcNwBh2F0dG5ldHOIAAAAAAAAAACEZXRoMpA7CIeVAAAgCf__________gmlkgnY0gmlwhBd8VMWJc2VjcDI1NmsxoQKBpvrb_j0-WNfeqCrDoZZGguCPyuYDRLf-I5j2Q0cnqoN0Y3CCNHmDdWRwgjR5, service: libp2p
Nov 21 17:37:30.980 INFO Listening established                   address: /ip4/0.0.0.0/tcp/13433/p2p/16Uiu2HAm49nFWHAPKyTVfnwyYqAXLEJ9Xtpmb4hxecDq12wZW9Jh, service: libp2p
Nov 21 17:37:30.999 INFO UPnP TCP route not set                  error: Request error. Gateway response error 402: Invalid Args, service: UPnP
Nov 21 17:37:31.000 INFO UPnP UDP route not set                  error: Request error. Gateway response error 402: Invalid Args, service: UPnP
Nov 21 17:37:31.017 INFO HTTP API started                        listen_address: 127.0.0.1:5059
Nov 21 17:37:31.018 CRIT Failed to start beacon node             reason: Unable to start HTTP API server: Warp(hyper::Error(Listen, Os { code: 98, kind: AddrInUse, message: "Address already in use" }))
Nov 21 17:37:31.018 INFO Internal shutdown received              reason: Failed to start beacon node
Nov 21 17:37:31.018 INFO Shutting down..
Nov 21 17:37:31.024 INFO Saved beacon chain to disk              service: beacon

Expected Behaviour

Return error message indicating that the metrics server is unable to start because the address is already in use.

Steps to resolve

Change the error message.