This are real timeouts (we cancel the requests after 28s)
They occur sporadically during the day.
806.084409013 10.100.19.86 -> 72.29.166.157 TCP 74 45617 > http [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=3259526143 TSecr=0 WS=128
807.084090149 10.100.19.86 -> 72.29.166.157 TCP 74 [TCP Retransmission] 45617 > http [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=3259527143 TSecr=0 WS=128
809.084089475 10.100.19.86 -> 72.29.166.157 TCP 74 [TCP Retransmission] 45617 > http [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=3259529143 TSecr=0 WS=128
813.084090246 10.100.19.86 -> 72.29.166.157 TCP 74 [TCP Retransmission] 45617 > http [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=3259533143 TSecr=0 WS=128
821.084096977 10.100.19.86 -> 72.29.166.157 TCP 74 [TCP Retransmission] 45617 > http [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=3259541143 TSecr=0 WS=128
(We see also sometimes 503 due to rate limiting)
Manual check with wget
--2016-03-23 20:43:37-- https://musicbrainz.org/ws/2/release?label=47e718e1-7ee4-460c-b1cc-1192a841c6e5
Resolving musicbrainz.org... 72.29.166.157
Connecting to musicbrainz.org|72.29.166.157|:443... failed: Connection timed out.
Retrying.
--2016-03-23 20:44:41-- (try: 2) https://musicbrainz.org/ws/2/release?label=47e718e1-7ee4-460c-b1cc-1192a841c6e5
Connecting to musicbrainz.org|72.29.166.157|:443... connected.
HTTP request sent, awaiting response...
HTTP/1.1 200 OK
Date: Wed, 23 Mar 2016 19:44:42 GMT
Content-Type: application/xml; charset=utf-8
Content-Length: 17180
Connection: keep-alive
Keep-Alive: timeout=15
Server: nginx/1.4.6 (Ubuntu)
ETag: "9d22e4e8deb1549003811c72b7e3fd57"
Access-Control-Allow-Origin: *
Length: 17180 (17K) [application/xml]