Varnish drops connections and make several HTTP 206

[Kacper Wysocki]

On Sun, Oct 9, 2011 at 11:44 AM, Kurt Kraut <listas at kurtkraut.net> wrote:
> Sorry for the lack of varnishlog. My mistake. Here goes the varnishlog, the correspondent wget log and other stuff that might be useful:
>
> Varnishlog: http://pastebin.com/SVZRqL2k
> Wget log downloading through varnish: http://pastebin.com/uv4kp97m
> Wget log downloading straight through backend: http://pastebin.com/5usCHpE0 (note that there are no interruptions)
> My default.vcl file: http://pastebin.com/idiBvh6f
>
> If you need any further details I will be glad to provide them.

Apart from containing error 503's from your backend going down (?)
there is this line from the requests you refer to:
   13 Debug        c Write error, retval = 25318280, len = 104857948,
errno = Success

looks very much like mine..

setting send_timeout lower does make this problem more frequent for me
and setting this higher makes it less frequent, but why exactly are we
hitting the send timeout here? doesnt make sense to me.

-k