Varnish 503 Service unavailable error

[Paras Fadte]

Hi Tollef,

After increasing the connect_timeout and first_byte_timeout values the
erros have reduced. I also tried to get transaction for 503 error and
following is part of the transaction for the same

  230 VCL_call     c recv lookup
  230 VCL_call     c hash hash
  230 VCL_call     c miss fetch
  230 VCL_call     c error deliver
  230 Length       c 465
  230 VCL_call     c deliver deliver
  230 TxProtocol   c HTTP/1.1
  230 TxStatus     c 503
  230 TxResponse   c Service Unavailable
  230 TxHeader     c Server: Varnish
  230 TxHeader     c Retry-After: 0
  230 TxHeader     c Content-Type: text/html; charset=utf-8
  230 TxHeader     c Content-Length: 465
  230 TxHeader     c Date: Wed, 11 Nov 2009 10:23:06 GMT
  230 TxHeader     c X-Varnish: 272187330
  230 TxHeader     c Age: 1

Thank you.


-Paras


On Thu, Oct 8, 2009 at 1:01 PM, Tollef Fog Heen
<tfheen at redpill-linpro.com> wrote:
> ]] Paras Fadte
>
> | Following is the output of varnishstat -1 . Also ,do I have to restart
> | varnish when I change the "connect_timeout" parameter ?
>
> No, no need to restart varnish.
>
> | backend_fail            37154         0.59 Backend connections failures
>
> As you can see here, you have quite a few backend connection failures.
> Is your backend overloaded?
>
> --
> Tollef Fog Heen
> Redpill Linpro -- Changing the game!
> t: +47 21 54 41 73
>