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  1. User picture
    • janko.mrkvicka on Sat 28 Jan 2012
    • 12:05:26 PM UTC

    wiki not working

    http://www.mywot.com/wiki/Main_Page

    is not working: HTTP 500 (Internal Server Error)

    happened something?

Comments:

  1. User picture
    • DÆmiel (not verified) on Sat 28 Jan 2012
    • 12:14:24 PM UTC

    RE: wiki not working

    I am also experiencing an webpage error that comes up sometimes and then goes away. Maybe WOT is in maintenance.

  2. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 12:40:26 PM UTC

    RE: wiki not working

    Same here.

    I frequently get an "Error 500" and sometimes an "Error 400".

    Happens when I lookup domains by searching, happens when directly calling a scorecard URL and it happens when I try to post a scorecard comment (hangs upon POST, forcing me to reload the page until the POST gets handled by the server correctly).

    To me, it looks less like maintenance, but more like a frequent "system is too busy to handle requests correctly" issue.

    Anyone from the mywot.com team itself around here who can say how long this is expected to happen and when it'll get fixed?

    UPDATE: I even get an "Error 400" when I try to post this forum entry. Really annoying.

  3. User picture
    • Sami on Sat 28 Jan 2012
    • 12:41:08 PM UTC

    RE: wiki not working

    The wiki issue appears to be caused by the recent MediaWiki update, we'll take a look.

    Edit: The wiki problem is fixed now.

  4. User picture
    • Sami on Sat 28 Jan 2012
    • 12:49:30 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    I frequently get an "Error 500" and sometimes an "Error 400".

    It's because your browser sends invalid requests. The OP's issue was caused by a MediaWIki extension not being compatible with the latest wiki version.

    UPDATE: I even get an "Error 400" when I try to post this forum entry. Really annoying.

    4xx errors are client errors, this one is specifically "Bad request".

  5. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 12:51:18 PM UTC

    RE: wiki not working

    @Sami :

    I can tell you for sure it's not related to MediaWiki.

    Please check what DÆmiel and I posted. Those errors happen outside of MediaWiki too.

    I would tend to look at the hardware, not the software.

    My best guess would be that your load-balancer is out of sync (expecting that you're running one) or it's a clear sign of frequent network fails due to high load (which would require hardware investments so you can grow according to the demand of around and about 31.000.000 users).

  6. User picture
    • Sami on Sat 28 Jan 2012
    • 01:01:38 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    I can tell you for sure it's not related to MediaWiki.

    As I said, the error the OP (and also DÆmiel) saw was caused by a MediaWiki extension, the errors you see are caused by invalid requests like these:

    "Accept-Encoding: gzip, deflate" 501
    "pt-Encoding: gzip, deflate" 501
    "zip, deflate" 400
    ": gzip, deflate" 501
    ": gzip, deflate" 501
    "late" 400
    "cept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7" 400
    "flate" 400
    "cept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7" 400
    "eflate" 400
    "late" 400
    "late" 400
    "ip, deflate" 400
    "late" 400
    ", deflate" 400
    "t-Encoding: gzip, deflate" 501
    "t-Encoding: gzip, deflate" 501
    "t-Encoding: gzip, deflate" 501

    That's the request followed by the HTTP error code our server returned to you. I have obviously left out all the other details from the logs.

    My best guess would be that your load-balancer is out of sync (expecting that you're running one) or it's a clear sign of frequent network fails due to high load

    Our network architecture is more than capable of handling the load. Looking at the logs, these client errors appear to come only from a couple of IP addresses that belong to your ISP. Yes, I can see they are frequent and most likely extremely annoying, but I'm not sure what we could do to resolve the problem for you.

    janko.mrkvicka and DÆmiel, could you please confirm that the wiki works now for you?

  7. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 01:08:58 PM UTC

    RE: wiki not working

    @Sami

    It's because your browser sends invalid requests. The OP's issue was caused by a MediaWIki extension not being compatible with the latest wiki version.

    4xx errors are client errors, this one is specifically "Bad request".

    Please, don't point the finger at me before you checked and confirmed it's not the system failing. Anything else reads like an attempt to ignore reported issues.

    There's noting that could or would cause an "error 4xx" from my side. If, it's your network that isn't receiving what my (latest Firefox) is sending.

    Also, your answer doesn't explain the "error 500" which I am seeing far more frequently. As I'm sure, you know that an "error 500" is an "Internal Server Error". No client request can cause those, unless there's something wrong with the server or it's configuration.

  8. User picture
    • Sami on Sat 28 Jan 2012
    • 01:15:21 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    Please, don't point the finger at me before you checked and confirmed it's not the system failing. Anything else reads like an attempt to ignore reported issues.

    Our servers are operating normally. I believe we have talked about this before, although your user name was different at the time.

    There's noting that could or would cause an "error 4xx" from my side. If, it's your network that isn't receiving what my (latest Firefox) is sending.
    ...
    Also, your answer doesn't explain the "error 500" which I am seeing far more frequently.

    You're seeing error 501 Not Implemented, which lighttpd apparently sends in response to some invalid requests it cannot handle. You can see examples in my post above. Or try this:


    $ echo -e "late\r\n\r\n" | nc mywot.com 80
    HTTP/1.0 400 Bad Request
    ...
    $ echo -e "t-Encoding: gzip, deflate\r\n\r\n" | nc mywot.com 80
    HTTP/1.0 501 Not Implemented
    ...

  9. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 01:22:29 PM UTC

    RE: wiki not working

    @Sami :

    Thanks for showing that log snippet, as it clearly shows your server is stalling somewhere along the road.

    As you keep pointing at me, I'll step back as I'm not planning to discuss the fact that my ISP is A-OK and that yours is the only website where I'm seeing error 400 and error 500 on regular GET requests. Facts are facts. Either act on them or don't. This is not my system, it's yours.

    But thanks for your efforts anyway. While being a bit unusable, they are still much appreciated.

    Have a nice day.

  10. User picture
    • Sami on Sat 28 Jan 2012
    • 01:29:23 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    Thanks for showing that log snippet, as it clearly shows your server is stalling somewhere along the road.

    It shows we are receiving invalid requests containing only parts of HTTP headers from you. Note that these are not all the requests from you in the log, only the ones that failed.

    As you keep pointing at me, I'll step back as I'm not planning to discuss the fact that my ISP is A-OK and that yours is the only website where I'm seeing error 400 and error 500 on regular GET requests.

    You are seeing those errors for requests that don't even contain the GET method. I don't see similar failures from anyone else, even if they're using the same ISP as you are, so I doubt the problem is with the ISP.

    Facts are facts. Either act on them or don't. This is not my system, it's yours.

    Sorry, unless you decide to drop by Helsinki with your computer some day, there's nothing else I can do to help you.

  11. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 01:33:50 PM UTC

    RE: wiki not working

    I believe we have talked about this before, although your user name was different at the time.

    Sorry to disappoint, but we've never talked before. Looking at the IP range, I can imagine there's more than just 1 person using my ISP. ;)

  12. User picture
    • Sami on Sat 28 Jan 2012
    • 01:37:09 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    Sorry to disappoint, but we've never talked before.

    Nope, I'm pretty sure you're the same person. You had the same unusual problem and very similar responses. Remember? Perhaps a few accounts ago?

  13. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 01:44:02 PM UTC

    RE: wiki not working

    ...unless you decide to drop by Helsinki with your computer some day...

    Now that's a friendly invitation! :)

    I might just do that one day as I frequently fly towards Scandinavia for business purposes and Helsinki-Vantaa is one of the airports I frequently touch-down at.

    I'll give you a call when I'm in town.

  14. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 01:57:39 PM UTC

    RE: wiki not working

    Nope, I'm pretty sure you're the same person. You had the same unusual problem and very similar responses. Remember? Perhaps a few accounts ago?

    Maybe I should rethink accepting your invitation. I signed up yesterday for the very first time. I don't know what you mean by "remember" and "a few accounts ago", but reading such replies makes me feel as if I wouldn't be very welcome (in contrast to your other replies). Can you explain where this subtle hostility and such weird implications are are coming from? I don't think I gave you any reason during the short time I've been a member here, or did I?

  15. User picture
    • LostMyFaith on Sat 28 Jan 2012
    • 02:08:33 PM UTC

    RE: wiki not working

    @Sami

    I've been thinking: could it be that your server doesn't fully support HTTP 1.1? HTTP/1.1 conforming servers are required to support pipelining and since I've configured Firefox to use pipelining, this could explain the errors we're both seeing.

  16. User picture
    • Sami on Sat 28 Jan 2012
    • 02:47:56 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    Can you explain where this subtle hostility and such weird implications are are coming from?

    I'm sure I introduced Wireshark to someone with the same problem, the same ISP, frequently changing accounts, and the word "trust" in the user name. I could be mistaken, of course. Your name isn't Mike, is it? Oh, and there was no hostility implied.

  17. User picture
    • Sami on Sat 28 Jan 2012
    • 02:50:56 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    I've been thinking: could it be that your server doesn't fully support HTTP 1.1?

    I'm certain lighttpd supports HTTP pipelining, but you can easily test this by turning off pipelining in your browser (set the option network.http.pipelining to false in about:config).

  18. User picture
    • DÆmiel (not verified) on Sun 29 Jan 2012
    • 04:24:25 AM UTC

    RE: wiki not working

    Originally posted by: Sami
    janko.mrkvicka and DÆmiel, could you please confirm that the wiki works now for you?

    Still not working, but the error does not come around now.

  19. User picture
    • Sami on Sun 29 Jan 2012
    • 07:17:13 AM UTC

    RE: wiki not working

    Originally posted by: DÆmiel
    Still not working, but the error does not come around now.

    Yes, I see the problem. Please try again now.

  20. User picture
    • DÆmiel (not verified) on Sun 29 Jan 2012
    • 09:52:25 AM UTC

    RE: wiki not working

    Originally posted by: Sami
    Yes, I see the problem. Please try again now.

    It's okay now. Thanks!

  21. User picture
    • LostMyFaith on Sat 04 Feb 2012
    • 03:30:59 PM UTC

    RE: wiki not working

    Originally posted by: Sami
    I'm sure I introduced Wireshark to someone with the same problem, the same ISP, frequently changing accounts, and the word "trust" in the user name. I could be mistaken, of course. Your name isn't Mike, is it? Oh, and there was no hostility implied.

    No hostility implied? It reads a bit different. No, my name isn't Mike. I've never used Wireshark either. And I would never have guessed that using the word "trust" is something bad since it is written all over your website.

    Personally, I do not really understand how all this can solve the errors we've been talking about. During the past week, I've been trying another ISP ("Arcor" instead of "O2") with even more problems. The login always ended up in an error 400. I also tried using a Mac instead of a PC. Same problems. As a last resort I asked a friend living in another city to visit mywot.com to tell me if he's having the same problems. Yes, he has. His ISP is 1&1 (German Telecom). This rules out that it could be an ISP-sided problem. It also rules out that I am the only one having these issues.

    But if you are uncomfortable with my account registration, or if you rather don't discuss the reported problems, just say so. I do not want to waste time if it does not make sense.

  22. User picture
    • Sami on Sun 05 Feb 2012
    • 04:16:42 PM UTC

    RE: wiki not working

    Originally posted by: Trusticism
    But if you are uncomfortable with my account registration, or if you rather don't discuss the reported problems, just say so.

    As I said, we have investigated the issue, are unable to reproduce it, and are not seeing a significant amount of client errors on our servers. If you can show us how to reproduce the problem, we would be happy to investigate it further.