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Re: Same cached objects, but different body_bytes_sent

June 03, 2017 09:48AM
Hi, Guilherme!

The HTTP status code 499, which means client closed the connection before
Nginx even sent one byte.
As long as Nginx sent some bytes, 499 will not arise, and Nginx just record
the code generated previously, also, i bet your log_format of your
access_log is the default one provided by Nginx, it is helpless when we
need to speculate whether
client closed the connection. Maybe you can modify your log_format such as
appending “$http_content_length”, you can analysis this case by comparing
the value of “$http_content_length” and “$body_bytes_sent”, of course the
“Accept-Encoding” header can never be passed.

On 3 June 2017 at 00:45:09, Guilherme (guilherme.e@gmail.com) wrote:

@itpp2012:

I cant replicate the problem using curl from 2 different locations.

Its not supposed to return 206 in range requests?

@zhang_chao:

I'm not sure about this, but its not supposed to return 499 in this case?

Tks,

Guilherme

On Fri, Jun 2, 2017 at 3:45 AM, Zhang Chao <zchao1995@gmail.com> wrote:

> Hi!
>
> Are you sure the client didn't close the connection when the body is
> transferring?
>
>
> On 2 June 2017 at 10:00:36, Guilherme (guilherme.e@gmail.com) wrote:
>
> I identified a strange behavior in my nginx/1.11.2. Same cached objects
> are returning different content length. In the logs below, body_bytes_sent
> changes intermittently between 215 and 3782 bytes. The correct length is
> 3782. (these objects are not being updated in this interval)
>
> xxxxxxxxxx - - [02/Jun/2017:01:29:06 +0000] "GET
> /img/app/bt_google_play.png HTTP/2.0" 200 *215* "xxxxxxxxxx" "Mozilla/5.0
> (Linux; Android 6.0.1; SM-G600FY Build/MMB29M) AppleWebKit/537.36 (KHTML,
> like Gecko) Chrome/58.0.3029.83 Mobile Safari/537.36" 42 215 10.571
> "image/png" HIT
> xxxxxxxxxx - - [02/Jun/2017:01:29:50 +0000] "GET
> /img/app/bt_google_play.png HTTP/2.0" 200 *3782* "xxxxxxxxxx"
> "Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_2 like Mac OS X)
> AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.0 Mobile/14F89
> Safari/602.1" 32 3791 0.344 "image/png" HIT
>
> ** request_time is always high for the shorter requests*
>
> I'm ignoring Vary header in proxy_ignore_headers too.
>
> Any idea about this?
>
> Tks,
>
> Guilherme
> _______________________________________________
> nginx mailing list
> nginx@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx
>
>
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Subject Author Posted

Same cached objects, but different body_bytes_sent

geberhart June 01, 2017 10:02PM

Re: Same cached objects, but different body_bytes_sent

itpp2012 June 02, 2017 02:40AM

Re: Same cached objects, but different body_bytes_sent

tokers June 02, 2017 02:46AM

Re: Same cached objects, but different body_bytes_sent

geberhart June 02, 2017 12:46PM

Re: Same cached objects, but different body_bytes_sent

itpp2012 June 02, 2017 02:05PM

Re: Same cached objects, but different body_bytes_sent

tokers June 03, 2017 09:48AM

Re: Same cached objects, but different body_bytes_sent

geberhart June 08, 2017 06:28PM

Re: Same cached objects, but different body_bytes_sent

Maxim Dounin June 09, 2017 12:30PM



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