I do not think I address the original question, but we also run TruCluster5 and just use CDSL links for hobbitclient tmp and log directories. No script modifications were necessary. This is how hobbit client directory looks: drwxr-xr-x 2 hobbit hobbit 8192 Oct 17 10:01 bin drwxr-xr-x 2 hobbit hobbit 8192 Oct 17 10:01 etc drwxr-xr-x 2 hobbit hobbit 8192 Oct 17 10:01 ext lrwxrwxrwx 1 root hobbit 56 Oct 24 09:02 logs -> ../../../cluster/members/{memb}/local/hobbit/client/logs -r-xr-xr-x 1 hobbit users 3001 Sep 28 17:21 runclient.sh lrwxrwxrwx 1 root hobbit 55 Oct 24 09:02 tmp -> ../../../cluster/members/{memb}/local/hobbit/client/tmp

We only monitor cluster members at this point, not the virtual host (cluster aliases)

I do have one problem with Tru64. The disk utilization is being sometimes reported on device/domain basis, sometimes on the mount point basis HP-UX and Linux always reported as mountpoint. If anyone knows how address this, I will greatly appreciate it

Thanks,

Alex.

Scheblein, Adam wrote:

I know for us here (running trucluster 5) we ran into the same problem, here is my modified runclient.sh script (the changes are basically I added the hostname part to the lock files:

#!/bin/sh #----------------------------------------------------------------------------#

Hobbit client bootup script.

This invokes hobbitlaunch, which in turn runs the Hobbit client and any

extensions configured.

Copyright (C) 2005 Henrik Storner <henrik at hswn.dk>

This program is released under the GNU General Public License (GPL),

version 2. See the file "COPYING" for details.

#----------------------------------------------------------------------------#

$Id: runclient.sh,v 1.6 2005/09/28 21:21:17 henrik Exp $

Default settings for this client

MACHINEDOTS="uname -n" # This systems hostname BBOSTYPE="uname -s | tr '[A-Z]' '[a-z]'" # This systems operating system in lowercase BBOSSCRIPT="hobbitclient-$BBOSTYPE.sh"

Commandline mods for the defaults

while test "$1" != "" do case "$1" in --hostname=*) MACHINEDOTS="echo $1 | sed -e's/--hostname=//'" ;; --os=*) BBOSTYPE="echo $1 | sed -e's/--os=//' | tr '[A-Z]' '[a-z]'" ;; --help) echo "Usage: $0 [--hostname=CLIENTNAME] [--os=rhel3|linux22] start|stop" exit 0 ;; start) CMD=$1 ;; stop) CMD=$1 ;; restart) CMD=$1 ;; esac

   shift

done

OLDDIR="pwd" cd "dirname $0" HOBBITCLIENTHOME="pwd" cd "$OLDDIR"

MACHINE="echo $MACHINEDOTS | sed -e's/\./,/g'"

export MACHINE MACHINEDOTS BBOSTYPE BBOSSCRIPT HOBBITCLIENTHOME

case "$CMD" in "start") if test ! -w $HOBBITCLIENTHOME/logs; then echo "Cannot write to the $HOBBITCLIENTHOME/logs directory" exit 1 fi if test ! -w $HOBBITCLIENTHOME/tmp; then echo "Cannot write to the $HOBBITCLIENTHOME/tmp directory" exit 1 fi

   if test -f $HOBBITCLIENTHOME/logs/clientlaunch.`hostname`.pid; then
           echo "Hobbit client already running, re-starting it"
           $0 stop
           rm -f $HOBBITCLIENTHOME/logs/clientlaunch.`hostname`.pid
   fi

   $HOBBITCLIENTHOME/bin/hobbitlaunch --config=$HOBBITCLIENTHOME/etc/clientlaunch.cfg --log=$HOBBITCLIENTHOME/logs/clientlaunch.log --pidfile=$HOBBITCLIENTHOME/logs/clientlaunch.`hostname`.pid
   if test $? -eq 0; then
           echo "Hobbit client for $BBOSTYPE started on $MACHINEDOTS"
   else
           echo "Hobbit client startup failed"
   fi
   ;;

"stop") if test -f $HOBBITCLIENTHOME/logs/clientlaunch.hostname.pid; then kill cat $HOBBITCLIENTHOME/logs/clientlaunch.$MACHINEDOTS.pid echo "Hobbit client stopped" else echo "Hobbit client not running" fi ;;

"restart") if test -f $HOBBITCLIENTHOME/logs/clientlaunch.hostname.pid; then $0 stop else echo "Hobbit client not running, continuing to start it" fi

   $0 start
   ;;

esac

exit 0

-----Original Message----- From: David Gore [mailto:David.Gore at mci.com] Sent: Wednesday, January 11, 2006 9:52 AM To: hobbit at hswn.dk Subject: Re: [hobbit] multiple hosts

Rolf,

I asked a similar question many months ago for our Digital UNIX (4.x) boxes running in multiple clusters. I did not get any answer, so I had to create a hack that does run multiple clients on each host. One client is for the physical host and does, cpu, disk, etc, and one client for the logical/virtual host that does the tasks specific to the logical/virtual host. The runclient.sh script runs every ten minutes via crontab, to make sure both clients are running and starts either client if they are not. I also have custom versions of some of the default Hobbit client scripts to support multiple clients on a single host. So in short as far as I know, you are going to have to hack/script your own solution. I don't mind sending you what my hobbit scripts have turned into, but it may not be what you are looking for.

David Gore

*e-mail via SUSE Linux 9.3 and other open source tools.

Rolf Schrittenlocher wrote:

...

Hi,

as there was no answer to my first mail, I try again with other words:

Our machines may have one or more aliases (virtual hosts) which all have DNS-entries. Normally we refer to the machines not using the hostname but by the alias, each of them combined to a bundle of functions and tasks. So a machine "frodo.xxx.de" might host "webserver.xxx.de", "dnsserver.xxx.de" and "tolkserver.xxx.de". These aliases and of course the tasks related to them are transferred to another machine in case of hardware failure, maintenance, etc. In bb-hosts we have an entry for each machine (to get data from this machine in case there is no alias set on it) and of course for all relevant aliases. What we need now is that the general client data (cpu, disk, ssh, ...) for each machine appears both with the hostname and all aliases set on it. I added a script to runclient.sh which creates ~/client/etc/clientlaunch.cfg dynamically according to the aliases set on the machine before starting the client. This assures that the correct data is polled on the client. I may modify $MACHINE or Í may use the CLIENT:hostname tag in bb-hosts to make the client send messages with a different name. But that would require several instances of the client running, somethin I dislike. I hope there is a way to send the client data once and to make the server look at some configuration file to see where he should present these data. Maybe that possibility exists but I haven't found it yet. So I hope that someone could indicate me where to search for the places which I have to "hack" hoping that it is possible to do that with shell or perl as my C-knowledge isn't so good. But even if C is necessary: Any hints are appreciated.

Thanks Rolf

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