503 Errors on POST
Rob S
rtshilston at gmail.com
Sun Feb 7 11:04:00 CET 2010
Torrance,
Can you upload a full tcpdump packet trace both between client and
varnish, and varnish and backend, together with the varnish logs and
varnish config, and I'll take a look.
Rob
Torrance wrote:
> I've no response to this on list, and the problem is ongoing. Should I
> file this as a bug?
>
> Torrance
>
>
>
> On 30/01/10 12:32 PM, Torrance wrote:
>
>> Hi Tollef,
>>
>> I've pasted the logs of two failed requests below. As you can see,
>> they're both in response to POST requests, though I was overstating the
>> frequency at which these errors are occurring: they're occurring about
>> 10% of the time.
>>
>> To be honest, I don't entirely understand the logs or their format, but
>> I hope I've captured the important details. (Session IDs have been
>> deleted, btw).
>>
>> Many thanks,
>> Torrance
>>
>>
>> 15 ReqStart c 125.236.128.219 51361 561006524
>> 15 RxRequest c POST
>> 15 RxURL c /node/78063/edit
>> 15 RxProtocol c HTTP/1.1
>> 15 RxHeader c Host: indymedia.org.nz
>> 15 RxHeader c User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS
>> X 10.6; en-GB; rv:1.9.2) Gecko/20100115 Firefox/3.6
>> 15 RxHeader c Accept:
>> text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
>> 15 RxHeader c Accept-Language: en-gb,en;q=0.5
>> 15 RxHeader c Accept-Encoding: gzip,deflate
>> 15 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> 15 RxHeader c Keep-Alive: 115
>> 15 RxHeader c Connection: keep-alive
>> 15 RxHeader c Referer: http://indymedia.org.nz/node/78063/edit
>> 15 RxHeader c Cookie: comment_info_name=Tester;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx; has_js=1
>> 15 RxHeader c Content-Type: multipart/form-data;
>> boundary=---------------------------1850078892860212931738819713
>> 15 RxHeader c Content-Length: 16978
>> 15 VCL_call c recv
>> 15 VCL_return c pass
>> 15 VCL_call c pass
>> 15 VCL_return c pass
>> 15 Backend c 10 default default
>> 10 TxRequest b POST
>> 10 TxURL b /node/78063/edit
>> 10 TxProtocol b HTTP/1.1
>> 10 TxHeader b Host: indymedia.org.nz
>> 10 TxHeader b User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS
>> X 10.6; en-GB; rv:1.9.2) Gecko/20100115 Firefox/3.6
>> 10 TxHeader b Accept:
>> text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
>> 10 TxHeader b Accept-Language: en-gb,en;q=0.5
>> 10 TxHeader b Accept-Encoding: gzip,deflate
>> 10 TxHeader b Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> 10 TxHeader b Referer: http://indymedia.org.nz/node/78063/edit
>> 10 TxHeader b Cookie: comment_info_name=Tester;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx; has_js=1
>> 10 TxHeader b Content-Type: multipart/form-data;
>> boundary=---------------------------1850078892860212931738819713
>> 10 TxHeader b Content-Length: 16978
>> 10 TxHeader b X-Forwarded-For: 125.236.128.219
>> 10 TxHeader b X-Varnish: 561006524
>> 10 TxHeader b X-Forwarded-For: 125.236.128.219
>> 10 BackendClose b default
>> 15 VCL_call c error
>> 15 VCL_return c deliver
>> 15 Length c 465
>> 15 VCL_call c deliver
>> 15 VCL_return c deliver
>> 15 TxProtocol c HTTP/1.1
>> 15 TxStatus c 503
>> 15 TxResponse c Service Unavailable
>> 15 TxHeader c Server: Varnish
>> 15 TxHeader c Retry-After: 0
>> 15 TxHeader c Content-Type: text/html; charset=utf-8
>> 15 TxHeader c Content-Length: 465
>> 15 TxHeader c Date: Fri, 29 Jan 2010 23:00:42 GMT
>> 15 TxHeader c X-Varnish: 561006524
>> 15 TxHeader c Age: 1
>> 15 TxHeader c Via: 1.1 varnish
>> 15 TxHeader c Connection: close
>> 15 ReqEnd c 561006524 1264806040.957435846 1264806042.241542339
>> 4.125935793 1.284075260 0.000031233
>> 15 SessionClose c error
>> 15 StatSess c 125.236.128.219 51361 14 1 3 0 3 2 1410 49426
>> 0 StatAddr - 125.236.128.219 0 1102 34 74 0 32 42 38287 1054700
>>
>>
>> 21 ReqStart c 125.236.128.219 53669 561007510
>> 21 RxRequest c POST
>> 21 RxURL c /node/78063/edit
>> 21 RxProtocol c HTTP/1.1
>> 21 RxHeader c Host: indymedia.org.nz
>> 21 RxHeader c User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS
>> X 10.6; en-GB; rv:1.9.2) Gecko/20100115 Firefox/3.6
>> 21 RxHeader c Accept:
>> text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
>> 21 RxHeader c Accept-Language: en-gb,en;q=0.5
>> 21 RxHeader c Accept-Encoding: gzip,deflate
>> 21 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> 21 RxHeader c Keep-Alive: 115
>> 21 RxHeader c Connection: keep-alive
>> 21 RxHeader c Referer: http://indymedia.org.nz/node/78063/edit
>> 21 RxHeader c Cookie: comment_info_name=Tester;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx; has_js=1
>> 21 RxHeader c Content-Type: multipart/form-data;
>> boundary=---------------------------84863282515329900481602423677
>> 21 RxHeader c Content-Length: 17019
>> 21 VCL_call c recv
>> 21 VCL_return c pass
>> 21 VCL_call c pass
>> 21 VCL_return c pass
>> 21 Backend c 15 default default
>> 15 TxRequest b POST
>> 15 TxURL b /node/78063/edit
>> 15 TxProtocol b HTTP/1.1
>> 15 TxHeader b Host: indymedia.org.nz
>> 15 TxHeader b User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS
>> X 10.6; en-GB; rv:1.9.2) Gecko/20100115 Firefox/3.6
>> 15 TxHeader b Accept:
>> text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
>> 15 TxHeader b Accept-Language: en-gb,en;q=0.5
>> 15 TxHeader b Accept-Encoding: gzip,deflate
>> 15 TxHeader b Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> 15 TxHeader b Referer: http://indymedia.org.nz/node/78063/edit
>> 15 TxHeader b Cookie: comment_info_name=Tester;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
>> SESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx; has_js=1
>> 15 TxHeader b Content-Type: multipart/form-data;
>> boundary=---------------------------84863282515329900481602423677
>> 15 TxHeader b Content-Length: 17019
>> 15 TxHeader b X-Forwarded-For: 125.236.128.219
>> 15 TxHeader b X-Varnish: 561007510
>> 15 TxHeader b X-Forwarded-For: 125.236.128.219
>> 15 BackendClose b default
>> 21 VCL_call c error
>> 21 VCL_return c deliver
>> 21 Length c 465
>> 21 VCL_call c deliver
>> 21 VCL_return c deliver
>> 21 TxProtocol c HTTP/1.1
>> 21 TxStatus c 503
>> 21 TxResponse c Service Unavailable
>> 21 TxHeader c Server: Varnish
>> 21 TxHeader c Retry-After: 0
>> 21 TxHeader c Content-Type: text/html; charset=utf-8
>> 21 TxHeader c Content-Length: 465
>> 21 TxHeader c Date: Fri, 29 Jan 2010 23:22:15 GMT
>> 21 TxHeader c X-Varnish: 561007510
>> 21 TxHeader c Age: 2
>> 21 TxHeader c Via: 1.1 varnish
>> 21 TxHeader c Connection: close
>> 21 ReqEnd c 561007510 1264807333.799563885 1264807335.335580826
>> 3.151196718 1.535988092 0.000028849
>> 21 SessionClose c error
>> 21 StatSess c 125.236.128.219 53669 35 1 9 0 5 4 4595 137808
>> 0 StatAddr - 125.236.128.219 0 2395 45 114 0 53 61 58675 1768498
>>
>> On 29/01/10 11:26 PM, Tollef Fog Heen wrote:
>>
>>
>>> ]] Torrance
>>>
>>> | I am running a drupal site behind Varnish and when posts or comments are
>>> | submitted there's about a 50/50 chance the user will get one of
>>> | Varnish's 503 error pages. These errors aren't after waiting a little
>>> | while or even a few seconds - they are returned with no delay
>>> | whatsoever. I can only presume that this is somehow linked to the fact
>>> | that these are POST requests, as the errors do not come up at any other
>>> | time.
>>>
>>> If you can capture a varnishlog from a good and a failing request, that
>>> might shed some light on what's going on.
>>>
>>>
>>>
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