Error: WARNING: Unresponsive child

muffin sk muffinsk at
Mon Sep 28 16:23:54 CEST 2009

Hello Alan and all,

On Mon, Sep 28, 2009 at 6:43 PM, Alan Buxey <A.L.M.Buxey at> wrote:
> this sort of message means that the child process is taking
> ages to do what is asked of it. in this case, its accounting and
> the accounting config is trying to run some external executable which
> is taking a while to do its thing.

Previously, this has been working smoothly. Then we changed some
configurations on the following devices which currently we are now
facing the problem:

On the router's RADIUS Authentication and Accounting configurations:

- Retry Count from 3 to 10
- Timeout from 3 to 10

On the FreeRADIUS's /etc/raddb/radiusd.conf:

- max_request_time from 30 down to 10

On the MySQL's /etc/my.cnf:


Of all the changes that we made, what could be the culprit that made
this problem triggered?

> i see you are using PERL - there are known issues with PERL and
> CentOS/RHEL is regards to process start up time - with rlm_exec
> you are having to start this up and connect etc everything - you'd be
> better off using the rlm_perl PERL module to do your work...


> better still - ditch 1.1.x , move to 2.1.x and use a virtual server for
> accounting with asynchronous buffered access so that accounting doesnt
> affect your live authentication etc


Thank you once again.



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