Since the DNS i use outside the cluster in the Univs, i think adding the DB node to it is out of question. Guess I will have to do it the hard way of either installing the DNS on master node or keeping a copy of /etc/hosts file.Or even better install the DB node only after all the other nodes have been installed :-) ...Thanks once again.
Sincerely, Sarat. On Mon, 2 Feb 2004, Bernard Li wrote: > You could set up the master server as the DNS server, but it might be > too much work for all it is worth. Is there no DNS server outside your > cluster that you could use to key this in? > > Otherwise, you are probably better off syncing up the /etc/hosts file on > the nodes every once in a while, backing it up as necessary (since > creating new images would overwrite that file). > > Cheers, > > Bernard > > Sarat C Maruvada wrote: > > > Hi Bernard. Thanks a lot.This definetely helps. Once thing is it rules out > > the manual change of hosts file as this will definetely not help. But does > > that mean that I would have to run a name server on the master node? > > because currently the name look-ups in the cluster are "hosts" file based > > and hence there had been no neccessity to run a local name server for the > > cluster. > > > > Sincerely, > > Sarat. > > > > On Mon, 2 Feb 2004, Bernard Li wrote: > > > > > >>Hi Sarat: > >> > >>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. > >>>>> > >>>>> > >>>>>------------------------------------------------------- > >>>>>The SF.Net email is sponsored by EclipseCon 2004 > >>>>>Premiere Conference on Open Tools Development and Integration > >>>>>See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. > >>>>>http://www.eclipsecon.org/osdn > >>>>>_______________________________________________ > >>>>>Oscar-users mailing list > >>>>>[EMAIL PROTECTED] > >>>>>https://lists.sourceforge.net/lists/listinfo/oscar-users > >>>> > >>>> > >>> > >>>------------------------------------------------------- > >>>The SF.Net email is sponsored by EclipseCon 2004 > >>>Premiere Conference on Open Tools Development and Integration > >>>See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. > >>>http://www.eclipsecon.org/osdn > >>>_______________________________________________ > >>>Oscar-users mailing list > >>>[EMAIL PROTECTED] > >>>https://lists.sourceforge.net/lists/listinfo/oscar-users > >> > >> > > > > > > ------------------------------------------------------- > > The SF.Net email is sponsored by EclipseCon 2004 > > Premiere Conference on Open Tools Development and Integration > > See the breadth of Eclipse activity. 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