Hello!

On Wed, Jun 25, 2014 at 07:23:32PM +0800, flygoast wrote:

> # HG changeset patch
> # User FengGu <flygoast@126.com>
> # Date 1403694825 -28800
> # Wed Jun 25 19:13:45 2014 +0800
> # Node ID 12fd8ef2f6ea3167dd96cb000aafeb2665aeee14
> # Parent 63d7d69d0fe48e030ff9fc520c7036dbd1ebc13f
> Upstream: fix possible request hang when "proxy_buffering" is off.
>
>
> In ngx_http_upstream_process_non_buffered_request(), when processing non
> buffered request, if write event has been delayed, deleting write timer
> event is likely to result in follow-up writing buffered in
> ngx_http_write_filter() ever since.

The question is "how write event got delayed?"
In the non-buffered mode, the r->limit_rate is explcitly set to 0,
and this shouldn't happen.

--
Maxim Dounin
http://nginx.org/

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