Worker processes not shutting down

[B.R.]

Any hanging/error should be available in your log files.

Cross-check access and error logs and you will probably find unusual
entries you seek for.
---
*B. R.*

On Fri, Sep 19, 2014 at 9:50 PM, igorhmm <nginx-forum at nginx.us> wrote:

> Hi BR,
>
> I don't known how to reproduce, not yet :-)
>
> I couldn't identify which worker was responding too, but I can see with
> strace warnings in the old wolker about EAGAIN (Resource temporarily
> unavailable). I can see that because old workers still running:
>
> USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
> nginx     6009  0.0  0.2  71020 18532 ?        S    Sep18   0:37 nginx:
> worker process is shutting down
> nginx     6010  0.0  0.2  71028 18496 ?        S    Sep18   0:12 nginx:
> worker process is shutting down
> nginx     6289  0.2  0.3  75672 23188 ?        S    07:54   0:58 nginx:
> worker process is shutting down
> nginx     6290  0.0  0.2  71932 19248 ?        S    07:54   0:15 nginx:
> worker process is shutting down
> nginx     9182  0.0  0.2  70872 18380 ?        S    10:20   0:02 nginx:
> worker process is shutting down
> nginx     9295  0.0  0.2  70952 18380 ?        S    10:26   0:02 nginx:
> worker process is shutting down
> nginx     9297  0.0  0.2  70368 17856 ?        S    10:26   0:02 nginx:
> worker process is shutting down
> nginx     9302  0.0  0.2  70804 18296 ?        S    10:26   0:01 nginx:
> worker process is shutting down
> nginx    10132  0.2  0.2  74776 22280 ?        S    10:53   0:47 nginx:
> worker process is shutting down
> nginx    10133  0.0  0.2  71484 18972 ?        S    10:53   0:09 nginx:
> worker process is shutting down
> nginx    13690  0.2  0.2  72876 20296 ?        S    14:22   0:10 nginx:
> worker process
> nginx    13691  0.1  0.2  71492 19088 ?        S    14:22   0:07 nginx:
> worker process
> nginx    13692  0.0  0.0  57292  3180 ?        S    14:22   0:00 nginx:
> cache manager process
> root     29863  0.0  0.0  57292  4048 ?        Ss   Sep11   0:00 nginx:
> master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
> nginx    30956  0.0  0.2  72924 20336 ?        S    Sep18   0:23 nginx:
> worker process is shutting down
> [/code]
>
> Looking for our user's usage, this workers will stay online for more few
> hours :)
>
> The difference between old and new configuration is just a "down" flag in
> one of our servers from our websockets pool (upstream). You can see a
> simplified version of config on: http://pastebin.com/02GQQ22r
>
> Really thanks for your attention.
>
> Igor
>
> Posted at Nginx Forum:
> http://forum.nginx.org/read.php?2,221591,253431#msg-253431
>
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