Re: DHCP in openMosix

On 26 Jan 2006 15:32:22 +0100, Moreno Baricevic <[email protected]> wrote:
>
> Hi Murali,
>
> we need some more info. Could you tell us something about your
> openmosix.map and your openmosix.config? Are you using omdiscd or a
> static oM map? Do you have one or more NICs on your nodes? Are you sure
> you are running the same oM kernel everywhere? Did you start openmosix?
> Any warning or error message when you start the oM service? Does the
> command "setpe -c -f /etc/openmosix.map" say anything useful?
>
> Ciao
>
> Moreno
>
>
>

On 1/26/06, John Floren <[email protected]> wrote:
>
> Okay, let's try to figure this out.  You say you can ping and ssh the
> hosts, but they are not "recognizing" each other?  By that do you mean
> that openMosix isn't finding any other hosts?  Did you configure an
> openmosix.map file?  Or are you trying to do auto-discovery?
> I never had much luck it auto-discovery, but that was two years ago.  A
> little more information would be helpful to get your problem fixed.
> Thanks
>
> John
>

I had used openmosix-kernel-2.4.26-openmosix1.i686.rpm for installing
openMosix.

I dont have access to one of the machines i had used now. this is the
configuration in the second machine.


[root@vader openmosix-downloads]# cat /etc/openmosix/openmosix.config
#
# This file can be used to change the default behaviour of the
# openMosix startup-script.
#

# Force autodiscovery-daemon to start, even with a valid .map-file
# The following line uncommented by Murali to force autodiscovery
AUTODISC=1

# Specify which network interface the autodiscovery-daemon should listen to
# AUTODISCIF=eth1

# Set the values of /proc/hpc/admin/overheads
# OVERHEADS=

# Set the values of /proc/hpc/admin/mfscosts
# MFSCOSTS=

# Set the openMosix node-id of this node
# MYOMID=

# Set maximum number of gateways between openMosix nodes (see man setpe)
# MOSGATES=

# Pass the following value to mosctl setspeed when starting the node
# man mosctl for details
# NODESPEED=10000

# Processes are allowed to migrate to other nodes.
# MIGRATE=yes

# Allow guest processes to arrive.
# BLOCK=no

# Don't use MFS
# MFS=yes

I hav used the same config file on both machines.

First I had tried the defualt settinmg. Then I forced autodiscovery as well.


[root@vader openmosix-downloads]# cat /etc/openmosix.map
# Static openMosix configuration
# ==============================
#
# Each line in this file should contain 3 fields, statically mapping
# IP addresses to openMosix node-numbers:
#
# 1) The first openMosix node-number in this range.
# 2) The IP address of the above node (or node-name from /etc/hosts).
# 3) The number of nodes in this range.
#
# Note: If you don't create a valid IP <-> node-number mapping, the
#       autodiscovery daemon will be started, automatically assigning
#       node-numbers to all visible openMosix machines.
#
# Example: 10 machines with IP addresses 192.168.1.50 - 192.168.1.59
#          which will have openMosix node-numbers 1-10:
#
# 1        192.168.1.50     10
#
# MOSIX-#  IP  number-of-nodes
# ============================
526    192.168.2.14     1

I had tried giving MOSIX-# as 1 first. then i tried 526 as well. IP of vader
is 192.168.4.144. I have tried commenting the last line as well.
network mask is 255.255.255.0

When i deploy finally, ALL the IP addresses of the machins othr than
192.168.2.14 will be got from DHCP only.

All my machines are having one NIC only.

[root@vader root]# service openmosix restart
openMosix: Using map file /etc/openmosix.map
openMosix: WARN: Invalid configuration in map-file /etc/openmosix.map
openMosix: Falling back to autodiscovery mode using /sbin/omdiscd
Stopping openMosix...
openMosix: All remote processes were expelled and no further remote
processes accepted.
Initializing openMosix...
openMosix configuration was successful :)

[root@vader root]# tail -7  /var/log/messages
...
Feb  1 04:32:31 vader kernel: openMosix: All guest processes evacuated and
no further guests allowed in
Feb  1 04:32:31 vader kernel: openMosix configuration disabled
Feb  1 04:32:31 vader omdiscd[1208]: Exiting on SIGINT.
Feb  1 04:32:31 vader kernel: openMosix: guest-processes now accepted again.
Feb  1 04:32:31 vader kernel: openMosix configuration changed: This is
openMosix #1168 (of 1 configured)
Feb  1 04:32:31 vader kernel: openMosix #1168 is at IP address 192.168.4.144
Feb  1 04:32:31 vader omdiscd[1263]: Notified kernel to activate openMosix

Even when the other machine was connected, the /var/log/messages output was
same only.



--
see not what comes to u.
see what comes out of u.