Re: DHCP in openMosix

Murila-
  To ask the really dumb questions, Do you have the openmosix kernel
installed on all machines? Have you confimred that openmosix is active
on all machines? If both of are correct, can you take a crossover
cable and connect two of the machines. This will help to eliminate the
network as a trouble spot. and make some of the trouble shooting
easier.

Evan

On 1/31/06, Murali P <[email protected]> wrote:
> Well, I tried the two things. I enquired  about the router to my nework
> admin and he said there is a router connecting all the VLANs.
>
> I tried the second the option also, but still to no avail.
>
> I had used the rpm file for my installation. Is it because of this that
> i am facing trouble?
> i used the openmosix-kernel-2.4.26-?.i386.rpm
>
> regards
> Murali
>
> Ian Latter wrote:
> > Dude,
> >
> >   There are two possibilities here;
> >
> > 1. NETWORK ISSUE
> >
> >   So long as the following hold true;
> >     - all of your openMosix machines have only one NIC
> >     - all of your openMosix machines are connected to the
> >        same LAN or VLAN (i.e. none are seperated by routers)
> >
> > .. then your problem is a network configuration issue.
> >
> > In your environment, you have;
> >     - Vader at 192.168.4.144/255.255.255.0
> >     - A second machine at  192.168.2.14/(what mask?)
> >     - And other machines per DHCP allocation
> >
> > Vader is unable to see the second machnie, and
> > probably the DHCP allocated machines as 192.168.4.144/
> > 255.255.255.0 must route to something on the
> > 192.168.4.x  network to get to 192.168.2.14.
> >
> > Without a router, and while you are using different
> > networks with different masks, then neither auto-
> > discovery nor static maps will work.
> >
> > A good network test for an unfiltered environment; can
> > you ping from each cluster node to each other cluster
> > node?
> >
> >
> > 2. OPENMOSIX ISSUE
> >
> > If, however, your network is setup in a more typical
> > manner;
> >     - all of your openMosix machines have only one NIC
> >     - all of your openMosix machines are connected to
> >         LANs or VLANs that are routed (and not filtered)
> >
> > .. then your problem is an openMosix configuration
> > issue.
> >
> > Try disabling auto-discovery (in this routed environment)
> > and use the following openMosix Map file on *all* cluster
> > machines;
> >
> > # 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
> > # ============================
> > 1         192.168.2.1     255
> > 256    192.168.4.1     255
> >
> >
> > Note that this assumes that you DHCP allocation is
> > going to populate either the 192.168.2.x network or
> > the 192.168.4.x network.  If your DHCP machines
> > are in another network, say 192.168.3.x, then add
> > the following line to the above openmosix.map file;
> >
> > 512    192.168.3.1     255
> >
> >
> >
> >
> >
> > Hope that helps,
> >
> >
>
>
>
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