Confused about proxy_buffer_size and proxy_buffers
kupokomapa at gmail.com
Wed Apr 30 09:34:11 MSD 2008
A little of topic but you definitely should implement some pagination
for the comments.
On Wed, Apr 30, 2008 at 1:15 AM, Igor Sysoev <is at rambler-co.ru> wrote:
> On Wed, Apr 30, 2008 at 11:15:14AM +1000, Dave Cheney wrote:
> > Hi,
> > I am trying to tune our nginx frontends (proxying a pack of
> > mongrels) to avoid this type of message
> > 2008/04/30 11:06:50 [warn] 35585#0: *40967931 an upstream response is
> > buffered to a temporary file /opt/local/var/run/nginx/proxy_temp/
> > 0/58/0000370580 while reading upstream, client: 220.127.116.11,
> > server: www.redbubble.com, request: "GET /people/basiamc/art/732916-4-
> > fire-fairy? HTTP/1.0", upstream:
> > "http://172.16.0.76:8006/people/basiamc/art/732916-4-fire-fairy ", host:
> > "www.redbubble.com", referrer:
> > "http://www.redbubble.com/people/basiamc/art/732916-4-fire-fairy "
> > A little bit of curling reveals that our minimum page size is
> > between 11k and 14k, but can be up to 35k for the common pages. So I have
> > set
> > proxy_buffer_size 32k
> > In the expectation that this buffer will be allocated for all proxy
> > requests before the overflow into proxy_buffers.
> > For pages that have a large number of comments the sizes can range
> > up to 150k but even with a setting like this
> > proxy_buffers 128 4k;
> > which should yield a maximum buffer of 546k, this request
> > [dave at crimson ~]$ curl -I
> > http://www.redbubble.com/people/basiamc/art/732916-4-fire-fairy
> > HTTP/1.1 200 OK
> > Server: nginx
> > Date: Wed, 30 Apr 2008 01:13:45 GMT
> > Content-Type: text/html; charset=utf-8
> > Connection: keep-alive
> > Set-Cookie: _session_id=1263f18e47b978d84cab76592cf240c4; path=/
> > Cache-Control: private, max-age=0, must-revalidate
> > Content-Length: 282541
> > Generates a warning.
> > Should I continue to increase the buffer size? Should I allocate the
> > buffer in larger sizes? Is there an interaction with proxy_buffers and
> > gzip or the output buffer settings ?
> No, these buffers should be enough.
> Are you sure that nginx was successfully reconfigured ?
> Is nginx -t OK ?
> Could you create debug log of the sinlge connection ?
> BTW I think that
> proxy_buffer_size 16k;
> proxy_buffers 32 16k;
> Igor Sysoev
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