[hobbit] Setting up second network tester

[Henrik Stoerner]

On Thu, Jan 31, 2008 at 03:29:43PM -0500, Eric Jacobs wrote:
> My Hobbit server does the display, network testing and alerting. Using the 
> default 5 minute interval for network tests. Some have complained that 
> connectivity tests to certain routers should happen more frequently. But, as 
> far as I can see, network testing interval is an all or nothing variable. So 
> I'm thinking of setting up second network tester and using NET variable in 
> bb-hosts to have the particular routers in question tested by second network 
> tester, running its tests more frequently.
> 
> Preamble done - now, how do I go about setting up second network tester? 
> Configuring another server and disabling all unnecessary tasks in 
> hobbitlaunch.cfg? If so, which will I need for the tester to work properly?

You don't have to setup a different Hobbit server, if your current
server has enough capacity to run the network tests. E.g. use this
script "netchecks.sh":

  #!/bin/sh

  BBLOCATION=$1 bbtest-net --report=bbnet-$1 --ping --checkresponse
  exit 0

Then in your hobbitlaunch.cfg you have two (or more) entries:

  [net-std]
        ENVFILE /usr/lib/hobbit/server/etc/hobbitserver.cfg
	CMD netchecks.sh standard
	LOGFILE $BBSERVERLOGS/bb-network.log
	INTERVAL 5m

  [net-frequent]
        ENVFILE /usr/lib/hobbit/server/etc/hobbitserver.cfg
	CMD netchecks.sh frequent
	LOGFILE $BBSERVERLOGS/bb-network.log
	INTERVAL 1m

This runs two sets of network tests - one with 5 minute intervals,
the other with 1 minute intervals. Then in bb-hosts, flag each host with
"NET:standard" or "NET:frequent".


Regards,
Henrik