518149 - The atom feed sometimes is not loaded

Status: RESOLVED WORKSFORME

(Websites :: planet.mozilla.org, defect)

Description

[Underpass]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; it; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3
Build Identifier: 

It seems that the URL is not loaded everytime. Giving this command in a shell

rm atom.xml; wget --no-cache http://planet.mozilla.org/atom.xml; file atom.xml

sometimes it says:

atom.xml: XML  document text

and sometimes:

atom.xml: gzip compressed data, from Unix

(this test command I had from the users in the irc channel of the Liferea feed reader, that I use on Linux)

I presume that when it is downloaded as a gzip file, the feed reader returns the error.

Thanks

Reproducible: Sometimes

Comment 1

[Underpass]

Attachment: "bugged" XML file

the output of "file" command is "gzip compressed data, from Unix"

Comment 2

[Underpass]

Attachment: "good" XML file

the output of "file" command is: " XML  document text"

Comment 3

[Fred Wenzel [:wenzel]]

IT: Is planet served through Zeus? I can't imagine it but are we somehow ignoring the accept-encoding request headers?

Comment 4

[Robert Accettura [:raccettura]]

I believe planet is behind a reverse proxy of some sort, though served off of apache it appears.

I can't reproduce this myself.  Everytime I try via my box I get the correct response.

Confirmed also via redbot (which would note if we're serving up gzip and non-gzipped content with the same etag):
http://redbot.org/?uri=http%3A%2F%2Fplanet.mozilla.org

Web-Sniffer:
http://web-sniffer.net/?url=http%3A%2F%2Fplanet.mozilla.org%2Fatom.xml&submit=Submit&http=1.1&gzip=yes&type=GET&uak=0

http://web-sniffer.net/?url=http%3A%2F%2Fplanet.mozilla.org%2Fatom.xml&submit=Submit&http=1.1&type=GET&uak=0

My guess is bug submitter is behind a proxied ISP who is caching inaccurately.

Comment 5

[Reed Loden [:reed]]

(In reply to comment #4)
> I believe planet is behind a reverse proxy of some sort, though served off of
> apache it appears.

It's behind a caching load balancer (Citrix NetScaler).

Comment 6

[Underpass]

(In reply to comment #4)
> My guess is bug submitter is behind a proxied ISP who is caching inaccurately.

Hello,

It migh as well be so, yet the feed of Planet Mozilla (actually all three) are the only one that returns this error out of 50 feeds or so.

I mean, I find it a bit strange...

Thanks

Comment 7

[Fred Wenzel [:wenzel]]

Netscalers are long gone, closing this. Please reopen if this persists!