landman at scalableinformatics.com
Sun Sep 21 16:17:17 EDT 2003
Anand Vaidya wrote:
>I was amazed to read that one needs to *reinstall* all nodes just to apply one
>ssh update. Isn't that very wasteful? Then what happens to the custom ssh
You can simply place the RPM in a shared location and
cluster-fork "rpm -Fvh /path/to/new-ssh-binary.rpm ;
You are not forced to use the re-install method, though it is on by
default. Turning it off is relatively simple:
cluster-fork "/etc/init.d/rocks-grub stop; /sbin/chkconfig --level
2345 rocks-grub off"
Or you can remove it from the node build tree (instructions in the
As for new ssh keys, I found that I simply have to clear out the
~/.ssh/known_hosts. It is annoying to have to do this for all users
though. I typically turn off the automatic re-install and default
re-install for my customers.
>7.Reinstall all compute nodes
> # cluster-fork /boot/kickstart/cluster-kickstart
>Or is there some misunderstanding on my part?
>On Friday 19 September 2003 23:48, Robert Kane wrote:
>>If no one has already mentioned it, Rocks (www.rocksclusters.org) is a
>>nice distribution to use. It's a customized distribution of Redhat 7.x.
>>It's stable, runs on a widely used and supported version of Linux, and has
>>all sorts of cluster tools (monitors, schedulers, mpi) integrated. It's
>>generally quick to install, and easy to manage.
>>>I've been running a very small 4 node beowulf cluster for a project.
>>>Right now I'm running Debian on the cluster and I'm not very happy with
>>>it or the tools available through the distribution.
>>>Does anyone have any suggestions of a good distribution? What about
>>>MSC.Linux? any good?
>>>I am also looking for tools to automate software installations across all
>>>the nodes, etc.
>>>I like the Debian package system, I just wish there was an easy way to
>>>have the process replicate across all the computers.
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