[hobbit] Central configuration hobbitd_client and extended testing

[Phil Wild]

Thanks Henrik,

I am currently running the all_in_one patch. It is good to know about the
usermsg message type.

I think I will have a go at getting solution3 up and running. We are already
feeding data into custom perl scripts at the backend to create rrd files our
oracle tablespaces so it would be pretty easy to extend that to also do the
testing for free space.

Can we setup our own section in hobbit-clients.cfg for our own test (keeping
the format the same but with different tests etc) for our own purposes or
would this break something?

Cheers

Phil

2008/4/8 Henrik Stoerner <henrik at hswn.dk>:

> On Tue, Apr 08, 2008 at 12:07:59PM +0800, Phil Wild wrote:
> > [...] I really like the central processing that happens
> > with hobbitd_client.
> >
> > If I want to convert some of my existing tests (which do all the
> processing
> > on the client and then send the green,yellow,red messages to hobbit)
> over to
> > the way hobbitd_client seems to work with collecting just the required
> data
> > and processing centrally, how do I go about doing this?
> >
> > What I want to achieve is a central configuration for all of the custom
> > tests? Can the hobbit-clients.cfg file be extended for further tests or
> > would this break the configuration?
>
>
> There are (at least) three ways of doing this.
>
> Solution one: Put the configuration file for your custom script into
> the ~hobbit/server/etc/ directory. Then modify the client script
> to run
>   $BB $BBDISP "config MYCONFIGFILE.cfg" >myconfig.cfg
> to pickup the configuration file from the Hobbit server.
>
>
> Solution two: This applies if you just want to have a few config-
> parameters for your custom test that you can control from the Hobbit
> server. In that case, you can add these to client-local.cfg (with
> some custom prefix to separate them from the other entries); this file
> is automatically transferred to the clients, so your custom script
> can then grab the configuration data from
> ~hobbit/client/tmp/logfetch.HOSTNAME.cfg .
>
> 1 and 2 is usually fairly easy to do, because you don't have to
> think too much about changing how your custom test works - you just
> pick up the configuration details from somewhere else, and leave the
> rest of the script as-is. The downside is that you're still analysing
> the data on each client, so if you want to add some new analysis to
> the data, you must update all of the clients.
>
>
> The third solution is to have your custom script on the clients
> just do the data collection - using whatever tools are needed on the
> client - and then send them to the Hobbit server. Either as part of the
> normal client data (to do this, modify the
> ~hobbit/client/bin/hobbiclient-OS.sh script), or in a separate
> message that you send with
>
>   $BB $BBDISP "usermsg $MACHINE.mydata
>
>   <... the data that you've collected ...>
>   "
>
> Then on the Hobbit server, you must write a program - in Perl,
> Shell, C, C++, Java, ... whatever language you fancy. This program
> is fed the client data via standard-input; your program must
> then do the analysis and act upon the result: This could be by
> generating a new status that it sends to the Hobbit server.
>
> There's a sample script in the Hobbit snapshot -
> hobbid/hobbitd_rootlogin.pl - showing how this can be done.
>
> Note that the "usermsg" command is not part of the original
> Hobbit 4.2.0 release, but it is included with the "allinone"
> patch available at http://www.hobbitmon.com/hobbitsw/patches/
>
>
> Regards,
> Henrik
>
>
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>
>
>


-- 
Tel: 0400 466 952
Fax: 0433 123 226
email: philwild at gmail.com
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