big difference between request time and upstreams time

[Igor A. Ippolitov]

Sorry, didn't realize this is an English mailing list.

To sum it up: the problem is most likely about clients and not the server.
Discrepancy between request time and upstream time usually means that a 
client is slow or uses a bad connection.
Basically, this is OK unless you have the only server out of many with 
this problem.
This in turn may mean that the problem is with that server's network 
connection.

Regards.

On 08.05.2018 14:50, Igor A. Ippolitov wrote:
> Можно я отвечу ссылкой? 
> http://mailman.nginx.org/pipermail/nginx/2008-October/008025.html
> Проблема, скорее всего, в клиентах.
>
> On 08.05.2018 14:43, Руслан Закиров wrote:
>> Hello,
>>
>> Some selected log records:
>> 14:27:46 1.609 [0.013] [0.002] [192.168.1.44:5002 
>> <http://192.168.1.44:5002>]
>> 14:27:50 1.017 [0.017] [0.001] [192.168.1.24:9000 
>> <http://192.168.1.24:9000>]
>> 14:27:51 1.522 [0.021] [0.000] [192.168.1.92:9000 
>> <http://192.168.1.92:9000>]
>> 14:27:50 1.019 [0.019] [0.000] [192.168.1.41:9000 
>> <http://192.168.1.41:9000>]
>> 14:27:52 1.019 [0.018] [0.000] [192.168.1.49:9000 
>> <http://192.168.1.49:9000>]
>> 14:27:52 1.019 [0.018] [0.001] [192.168.1.59:9000 
>> <http://192.168.1.59:9000>]
>> 14:27:55 1.515 [0.014] [0.000] [192.168.1.92:9000 
>> <http://192.168.1.92:9000>]
>> 14:27:57 0.510 [0.010] [0.001] [192.168.1.21:9000 
>> <http://192.168.1.21:9000>]
>> 14:28:03 1.521 [0.021] [0.001] [192.168.1.48:9000 
>> <http://192.168.1.48:9000>]
>> 14:28:04 0.660 [0.007] [0.002] [192.168.1.24:5002 
>> <http://192.168.1.24:5002>]
>> 14:28:05 2.216 [0.018] [0.002] [192.168.1.44:5002 
>> <http://192.168.1.44:5002>]
>> 14:28:11 0.510 [0.010] [0.000] [192.168.1.49:9000 
>> <http://192.168.1.49:9000>]
>> 14:28:26 0.937 [0.008] [0.002] [192.168.1.92:5002 
>> <http://192.168.1.92:5002>]
>> 14:28:28 1.019 [0.019] [0.000] [192.168.1.49:9000 
>> <http://192.168.1.49:9000>]
>> 14:28:28 0.508 [0.007] [0.000] [192.168.1.42:9000 
>> <http://192.168.1.42:9000>]
>> 14:28:31 1.021 [0.019] [0.000] [192.168.1.44:9000 
>> <http://192.168.1.44:9000>]
>> 14:28:32 0.509 [0.008] [0.000] [192.168.1.48:9000 
>> <http://192.168.1.48:9000>]
>> 14:28:36 1.015 [0.015] [0.000] [192.168.1.43:9000 
>> <http://192.168.1.43:9000>]
>> 14:28:39 0.358 [0.007] [0.001] [192.168.1.92:5002 
>> <http://192.168.1.92:5002>]
>>
>> columns: wallclock time, request time, upstream_request_time, 
>> upstream_connect_time, upstream.
>>
>> Please, help me diagnose this problem further as I stuck. This is 
>> subset where request_time 50x bigger than upstream_request_time (just 
>> to make subset less noisy). I see request times up to 60 seconds. Can 
>> not tie it to some periodicity. It happens so often that don't see 
>> anything helpful in strace... I stuck... Any ideas?
>>
>> This is nginx/1.10.2 on FreeBSD 10.3-RELEASE-p7.
>>
>> -- 
>> Руслан Закиров
>> Руководитель отдела разработки веб-сервисов
>> +7(916) 597-92-69, ruz @ <http://www.sports.ru/>
>>
>>
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>> http://mailman.nginx.org/mailman/listinfo/nginx
>
>
>
>
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