1.8b1: 502 Proxy Error when trying to access MAAS in browser

Bug #1441652 reported by Jason Hobbs
14
This bug affects 2 people
Affects Status Importance Assigned to Milestone
MAAS
Fix Released
Critical
Unassigned

Bug Description

I'm seeing this error when trying to access MAAS in a browser:

Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /MAAS.

Reason: Error reading from remote server

Apache/2.4.7 (Ubuntu) Server at 10.245.0.10 Port 80

This is with 1.8.0~beta1+bzr3777-0ubuntu1~trusty1

Tags: oil

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Revision history for this message
Jason Hobbs (jason-hobbs) wrote :

Lots of this in my log apache2 error log:

[Wed Apr 08 14:20:56.479877 2015] [proxy_http:error] [pid 1219:tid 140570615908096] (70007)The timeout specified has expired: [client 10.245.0.203:40592] AH01102: error reading status line from remote server localhost:5240
[Wed Apr 08 14:20:56.479913 2015] [proxy:error] [pid 1219:tid 140570615908096] [client 10.245.0.203:40592] AH00898: Error reading from remote server returned by /MAAS/api/1.0/nodes/
[Wed Apr 08 14:21:08.722209 2015] [proxy_http:error] [pid 61834:tid 140570378823424] (70007)The timeout specified has expired: [client 10.33.17.210:54218] AH01102: error reading status line from remote server localhost:5240
[Wed Apr 08 14:21:08.722255 2015] [proxy:error] [pid 61834:tid 140570378823424] [client 10.33.17.210:54218] AH00898: Error reading from remote server returned by /MAAS/api/1.0/files/f2dadfc8-9c7d-4f52-854f-901738ca22ec-provider-state/
[Wed Apr 08 14:22:33.825749 2015] [proxy_http:error] [pid 1219:tid 140570599106304] (70007)The timeout specified has expired: [client 10.245.0.206:52199] AH01102: error reading status line from remote server localhost:5240
[Wed Apr 08 14:22:33.825787 2015] [proxy:error] [pid 1219:tid 140570599106304] [client 10.245.0.206:52199] AH00898: Error reading from remote server returned by /MAAS/api/1.0/nodes/

summary: - 502 Proxy Error when trying to access MAAS in browser
+ 502 Proxy Error when trying to access MAAS 1.8beta1 in browser
Revision history for this message
Andres Rodriguez (andreserl) wrote : Re: 502 Proxy Error when trying to access MAAS 1.8beta1 in browser

The question is, what caused this?

summary: - 502 Proxy Error when trying to access MAAS 1.8beta1 in browser
+ 1.8b1: 502 Proxy Error when trying to access MAAS in browser
Changed in maas:
importance: Undecided → Critical
milestone: none → 1.8.0
Changed in maas:
status: New → Triaged
Revision history for this message
Larry Michel (lmic) wrote :

We hit these again today:

5344] [client 10.245.0.203:40597] AH01114: HTTP: failed to make connection to backend: localhost
[Wed Apr 08 14:25:01.620401 2015] [proxy_http:error] [pid 49489:tid 140475602114304] [client 10.33.17.210:54330] AH01114: HTTP: failed to make connection to backend: localhost
[Wed Apr 08 14:25:01.837460 2015] [proxy_http:error] [pid 49490:tid 140475585312512] [client 10.33.17.82:35268] AH01114: HTTP: failed to make connection to backend: localhost
[Sat Apr 11 04:44:04.418243 2015] [proxy_http:error] [pid 5372:tid 140475461777152] (70007)The timeout specified has expired: [client 10.33.17.26:41831] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 04:44:48.916271 2015] [proxy_http:error] [pid 5372:tid 140475470169856] (70007)The timeout specified has expired: [client 10.33.16.17:34829] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 04:49:05.360262 2015] [proxy_http:error] [pid 5372:tid 140475478562560] (70007)The timeout specified has expired: [client 10.33.17.26:41875] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 04:49:49.658378 2015] [proxy_http:error] [pid 5372:tid 140475377850112] (70007)The timeout specified has expired: [client 10.33.16.17:34842] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 04:53:15.956302 2015] [proxy_http:error] [pid 5372:tid 140475461777152] (70007)The timeout specified has expired: [client 91.189.91.27:38439] AH01102: error reading status line from remote server localhost:5240
...
[Sat Apr 11 19:47:37.506802 2015] [proxy_http:error] [pid 5372:tid 140475369457408] (70007)The timeout specified has expired: [client 10.245.0.180:42025] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 19:47:58.484324 2015] [proxy_http:error] [pid 49489:tid 140475478562560] (70007)The timeout specified has expired: [client 10.245.0.10:45055] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 19:48:13.689416 2015] [proxy_http:error] [pid 5372:tid 140475335886592] (70007)The timeout specified has expired: [client 10.245.0.158:46607] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 19:48:38.633598 2015] [proxy_http:error] [pid 5372:tid 140475377850112] (70007)The timeout specified has expired: [client 91.189.91.27:39504] AH01102: error reading status line from remote server localhost:5240
[Sat Apr 11 19:48:46.226447 2015] [proxy_http:error] [pid 49489:tid 140475394635520] (70007)The timeout specified has expired: [client 10.245.0.158:46608] AH01102: error reading status line from remote server localhost:5240

Revision history for this message
Andres Rodriguez (andreserl) wrote :
Revision history for this message
Andres Rodriguez (andreserl) wrote :
Revision history for this message
Andres Rodriguez (andreserl) wrote :
Revision history for this message
Andres Rodriguez (andreserl) wrote :
Revision history for this message
Andres Rodriguez (andreserl) wrote :
Changed in maas:
status: Triaged → Confirmed
Changed in maas:
status: Confirmed → Fix Committed
Changed in maas:
status: Fix Committed → Fix Released
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