CentOS - Oct 2010 - advice on using daemontools on centos production servers

Hi advisors , 

I would some suggestions on using http://cr.yp.to/daemontools.html .

My requirements is to use less systems daemon checks in nagios but concentrate
more on  business / application level checks .

We have lots of daemons like below 
> 1. ) snmpd
> 2.) ntp
> 3.) SSH
> 4.) crond
> 5.) php-cgi
> 6.) nginx
> 7.) Postfix
> 8.) wackamole
> 9.) spread
> 10.) atop
> 11.) redis
> 12.) taillog-dopa
> 13.) taillog-user
> 14.) rsyncd
... ETC. 

We use nagios checks + event-handlers in case of daemon failure . 

My views is to use daemontool to control all these daemons , and create a single
nagios check which scans /service/ directory and alerts for daemons which are
getting restarting in unwanted ways.

Some of my friends will argue about daemontools being non-unixy and
unconventional , But I had good experience with daemontools on around 3000
servers earlier in my previous organization .

Please advice what you guys think about daemontools and its pros and crons . 

Thanks , 
Saurabh Verma

On 10/25/2010 5:54 AM, saurabh verma wrote:
> Hi advisors ,
>
> I would some suggestions on using http://cr.yp.to/daemontools.html .
>
> My requirements is to use less systems daemon checks in nagios but
concentrate more on  business / application level checks .
>
> We have lots of daemons like below
>
>> 1. ) snmpd
>> 2.) ntp
>> 3.) SSH
>> 4.) crond
>> 5.) php-cgi
>> 6.) nginx
>> 7.) Postfix
>> 8.) wackamole
>> 9.) spread
>> 10.) atop
>> 11.) redis
>> 12.) taillog-dopa
>> 13.) taillog-user
>> 14.) rsyncd
>
> ... ETC.
>
> We use nagios checks + event-handlers in case of daemon failure .
>
> My views is to use daemontool to control all these daemons , and create a
single nagios check which scans /service/ directory and alerts for daemons which
are getting restarting in unwanted ways.
>
> Some of my friends will argue about daemontools being non-unixy and
unconventional , But I had good experience with daemontools on around 3000
servers earlier in my previous organization .
>
> Please advice what you guys think about daemontools and its pros and crons
.
How is that going to mesh with updating packages that expect the stock 
tools to be used to restart themselves?

-- 
   Les Mikesell
     lesmikesell at gmail.com