Package: apt-cacher-ng Version: 0.7.6-1 Severity: normal Hi,
I'm having weird, confusing issues with Ubuntu clients working through apt-cacher-ng (which a transparent Squid forwards relevant requests to). Part of the problem seems to be that apt-cacher-ng returns "500 internal server error" if asked to retreive a Packages file that doesn't exist: % wget -S -O- 'http://archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages' --2012-08-02 21:29:05-- http://archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages Resolving archive.ubuntu.com (archive.ubuntu.com)... 91.189.92.180, 91.189.92.181, 91.189.92.182, ... Connecting to archive.ubuntu.com (archive.ubuntu.com)|91.189.92.180|:80... connected. HTTP request sent, awaiting response... HTTP/1.0 500 Internal Server Error Content-Length: 144 Content-Type: text/html Date: Thu Aug 2 19:29:05 2012 Server: Debian Apt-Cacher NG/0.7.4 X-Cache: MISS from proxy X-Cache-Lookup: MISS from proxy:3128 Connection: keep-alive 2012-08-02 21:29:05 ERROR 500: Internal Server Error. (This request first passed through a transparent Squid, which forwarded it to apt-cacher-ng.) The real server replies with: % wget -S -O- 'http://archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages' --2012-08-02 21:51:08-- http://archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages Resolving archive.ubuntu.com... 91.189.92.152, 91.189.92.153, 91.189.92.154, ... Connecting to archive.ubuntu.com|91.189.92.152|:80... connected. HTTP request sent, awaiting response... HTTP/1.1 404 Not Found Date: Thu, 02 Aug 2012 19:51:09 GMT Server: Apache/2.2.22 (Ubuntu) Vary: Accept-Encoding Content-Length: 329 Keep-Alive: timeout=5, max=100 Connection: Keep-Alive Content-Type: text/html; charset=iso-8859-1 2012-08-02 21:51:09 ERROR 404: Not Found. It seems to me that in this case, tools like apt-get and debootstrap would try Packages.gz and Packages.bz2 as well (which do exist), but the 500 error throws them off. Interestingly, the responses from apt-cacher-ng vary somewhat depending on how it's queried: % wget -S -O- 'http://aptcacher:3142/archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages' --2012-08-02 21:36:51-- http://aptcacher:3142/archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages Resolving aptcacher (aptcacher)... 192.168.0.254 Connecting to aptcacher (aptcacher)|192.168.0.254|:3142... connected. HTTP request sent, awaiting response... HTTP/1.1 500 Bad mirror Content-Length: 144 Content-Type: text/html Date: Thu Aug 2 19:36:51 2012 Server: Debian Apt-Cacher NG/0.7.6 Connection: Keep-Alive 2012-08-02 21:36:51 ERROR 500: Bad mirror. This is what happens when I query it directly instead of going through Squid. I suppose Squid discards "Bad mirror" and returns "Internal Server Error" based on an internal table of HTTP status codes. Is there a good reason why the client is not allowed to see the 404 error? Even if that error can't be passed through to the client for whatever reason, I think the error message ACNG returns could be improved. The error log isn't very informative either (and this is with Debug:4): Thu Aug 2 21:36:51 2012|Detected incoming connection from the TCP socket Thu Aug 2 21:36:51 2012|Client name: 192.168.0.4 Thu Aug 2 21:36:51 2012|Raw request URI: /archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages Thu Aug 2 21:36:51 2012|Processing new job, GET /archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages HTTP/1.1 Thu Aug 2 21:36:51 2012|Prepared response header for user: HTTP/1.1 500 Bad mirror Content-Length: 144 Content-Type: text/html Date: Thu Aug 2 19:36:51 2012 Server: Debian Apt-Cacher NG/0.7.6 Connection: Keep-Alive A simple HTML page saying something like "ACNG running on host <hostname> attempted to fetch <real-url> from <real-server> but the server said <server response>. <Reasoning explaining why ACNG can't deal with this.>" would be very helpful. Andras -- Andras Korn <korn at elan.rulez.org> Eagles may soar but weasels aren't sucked into jet engines. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
