Ok ,you are right .
in this situation, the nginx must read all client request body, BUT
the next step must be handled will
not continue.

So , I backup the write_event_handler to the write_event_handler_back
and when nginx read all request body I restore the handler.
like this:

write_event_handler = write_event_handler_back;

By changing to this,the next strp can continue. It's a BUG for nginx?

2015-04-16 21:42 GMT+08:00 Maxim Dounin <mdounin@mdounin.ru>:
> Hello!
>
> On Thu, Apr 16, 2015 at 06:02:16PM +0800, cruze guo wrote:
>
> [...]
>
>> but ,the (struct ngx_http_request_s) 's write_event_handler will be
>> set to ngx_http_request_empty_handler.
>>
>> in ngx_http_request_body.c
>> function ngx_http_read_client_request_body
>> r->write_event_handler = ngx_http_request_empty_handler;
>>
>> It mean nothing will handle the next step,when you read all client
>> request body!!
>
> Write event handler is used to handle write events, and there is no need
> to set it unless nginx is writing something. While nginx is reading
> a request body, it only needs read event handler to process new data
> from a client.
>
> --
> Maxim Dounin
> http://nginx.org/
>
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> nginx mailing list
> nginx@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx

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