559986 - sentry failing to reach voxcdn mirror

Status: RESOLVED FIXED

(mozilla.org :: FTP: Mirrors, task)

Description

[:Gavin Sharp [email: [e-mail]]]

voxcdn is one of the primary release mirrors, and sentry currently has it marked red (down), despite it being reachable from the command line on im-sentry01.

<justdave> [root@im-sentry01 ~]# curl -I http://3347-mozilla.voxcdn.com/pub/mozilla.org/
<justdave> HTTP/1.1 200 OK

<justdave> [root@im-sentry01 sentry]# ./sentry.pl checknow http://3347-mozilla.voxcdn.com/pub/mozilla.org
<justdave>  http://3347-mozilla.voxcdn.com/pub/mozilla.org sent no response after 5 seconds!  Checking recent history...
<justdave> and I get that almost immediately
<justdave> it doesn't wait 5 seconds

<justdave> Error received: Can't connect to mozilla-mirror.3347.voxcdn.com:80 (Bad hostname 'mozilla-mirror.3347.voxcdn.com')
<justdave> where's that name coming from?
<gavin> that's the old one
<justdave> definitely says 3347-mozilla in the config


DNS at MPT can't resolve mozilla-mirror.3347.voxcdn.com, but I can - I don't know whether that's related.

Comment 1

[Dave Miller [:justdave]]

and I don't know why it needs to resolve mozilla-mirror.3347.voxcdn.com, because I don't know where it's even getting that name from.

Comment 2

[Dave Miller [:justdave]]

for the record, it's not in /etc/hosts

Comment 3

[Dave Miller [:justdave]]

[root@im-sentry01 ~]# host 3347-mozilla.voxcdn.com
3347-mozilla.voxcdn.com is an alias for content.sjc1.site.voxcdn.net.
content.sjc1.site.voxcdn.net has address 208.122.62.226
[root@im-sentry01 ~]# host 208.122.62.226
Host 226.62.122.208.in-addr.arpa. not found: 3(NXDOMAIN)

Comment 4

[Reed Loden [:reed]]

After some debugging work by justdave, figured out the problem. All resolved.

Comment 5

[Dave Miller [:justdave]]

OK, after dumping a bunch of debug data in the app, turns out LWP::UserAgent is following redirects, and voxcdn is giving us a 301 to the nonexistent hostname.

Reed fixed the config on their end, all is well.