Sporadic "backend write error: 11" errors

HC Saustrup hc at codecompany.dk
Fri Jul 30 21:09:26 CEST 2010

On 7/30/10 4:43 PM, HC Saustrup wrote:
> I've recently deployed Varnish 2.1.3 on a 64-bit CentOS 5.5, but it 
> seems to fail on certain requests under stress. It's a POST request 
> that's PASSed through to the backend.
> According to the logs, it fails while talking to the backend and 
> returns a 503 error to the client after hanging for approximately 5000ms.
FYI - this also happens with SVN revision 5060 under CentOS 5.5.


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