You might be better off putting the hostname of the DB server in DNS or something in your domain, so that it can be looked up instead of depending on hosts file.
In the current state I think if you modify the /etc/hosts file, it will get overwritten the next time nodes are imaged, etc.
Hope this helps.
Cheers,
Bernard
Sarat C Maruvada wrote:
Hi Bernard. Thank you very much for the prompt reply. I get the idea as to what is to be done. The reason I had a doubt in the first place was i would need to make the neccessary modification in the /etc/hosts file of every node in the cluster. And this is a file that is periodically pushed to all nodes. So I was wondering if there would be some kind of problem if I manually edit this and push it to all nodes and then later on add a slave node to the cluster. Thanks a lot for your time.
Sincerely, Sarat.
On Mon, 2 Feb 2004, Bernard Li wrote:
Hi Sarat:
So basically you want an independent server which acts as the database server and you want your slave nodes to be able to mount a FS exported off that database server.
This can actually be done really easily - you would basically just want to set up the DB server separately (load the OS independently) and then create an export for your NFS mount, then just modify your slave nodes' /etc/fstab to reflect that. You can do that very exactly with cexec.
If you have questions about any of the steps, please let us know.
Cheers,
Bernard
Sarat C Maruvada wrote:
Hello Everybody.I am currently building a Linux cluster for bioinformatic application and am using OSCAR 2.3.1 for basic image installation. Using this I have successfully managed to run all the slave nodes. What we would like to add is a "database node", which will not be a part of slave nodes but more independent like the master node. The file system will have to be mounted on all the slave nodes but i have doubts about installing it like any other OSCAR node. How sould I go about the integration of a node that is not maintained by OSCAR with other oscar nodes??any help would be appriciated.
Sincerely, Sarat.
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