It is working fine now. I disabled the firewall on the headnode temporarily.
Now the nfs is mounting properly.
Thanks for the suggestions.
On 4/25/07, Michael Edwards <[EMAIL PROTECTED]> wrote:
For me the problem is usually that I have not let the head node boot
completely before booting the nodes.
If not, I would start looking in the /var/log/messages for nfs related
messages on the head and client nodes.
Running a firewall with nfs is difficult, you should turn off any
firewalls on the system (and SE Linux) and see if that fixes the problem.
If nfs is not working, basically nothing will work quite right. Most of
the packages in OSCAR assume the /home directory is present on all the
nodes.
On 4/25/07, Pravab J. Rana < [EMAIL PROTECTED]> wrote:
> Hi,
> I checked the flies /etc/passwd and /etc/groups and they exist. I also
> tried the post_install script but that didn't help much either. The same
> problem remains.
> While rebooting I noticed that the mounting of the nfs filesystem fails
> in client nodes. This could be the cause of the problem I guess. I still
> have not figured out why the nfs filesystem mounting is failing. Any
> suggestions !!
>
> Thanks
>
> On 4/25/07, Kim, DongInn <[EMAIL PROTECTED]> wrote:
> >
> > Hi Pravab,
> >
> > I think you'd better run the script
> > "$OSCAR_HOME/packages/opium/scripts/post_install" manually.
> > The "post_install" script will take care of all the synchronization of
> > accounts in the OSCAR cluster.
> > And then try to access other nodes with the new user account.
> >
> > Regards,
> >
> > - DongInn
> >
> > Pravab J. Rana wrote:
> > > Hi Michael,
> > > Yes the home directory is present on head node and password free
> > ssh
> > > works for the root account.
> > > By clock synchronization do you mean the system time. The system
> > time
> > > of the cluster nodes seems to be running a little late by about 1.5
> > > mins with the headnode.
> > > Is there anything else I could try
> > >
> > > On 4/23/07, *Michael Edwards* < [EMAIL PROTECTED]
> > > <mailto:[EMAIL PROTECTED] >> wrote:
> > >
> > > Is the users home directory present on the head node in /home?
> > >
> > > /home is shared over nfs by default so if the directory is
> > present
> > > on the head it should be present on the nodes.
> > >
> > > Are the clocks on all the nodes sychronized? If they are too
> > far
> > > off nfs may not realize that new files are available to share.
> > > Does passwordless ssh work for root?
> > >
> > > The OSCAR environment should take care of setting up the
> > password
> > > free ssh the first time the new user logs in, but if their home
> > > directory is not being shared out to the nodes it won't work
> > > because it relies on files there.
> > >
> > > On 4/23/07, *Pravab J. Rana* < [EMAIL PROTECTED]
> > > <mailto:[EMAIL PROTECTED] >> wrote:
> > >
> > > Hi,
> > > We have been using a newly installed Oscar Cluster and want
> > to
> > > add new users to the system.
> > > I used "/opt/sync_files/bin/sync_files --force" to propagate
> >
> > > new users added in the headnode to the other nodes.
> > > My problem is whenever I am trying to login to othernodes
> > > using the new account, the login is successful but it is
> > > showing me an error message saying that there is no home
> > > directory for that user.
> > > Is there any other scripts that I should be using or if I am
> >
> > > missing any parameters.
> > >
> > > Once logged into the headnode, I also wanted to be able to
> > ssh
> > > to other nodes without having to reenter the password. I
> > think
> > > the OPIUM package should have been able to do this. I was
> > > wondering if this was also related to the first problem of
> > > user account synchronization.
> > > Any Suggestions.!!
> > >
> > > Thanks
> > >
> > >
> > >
> > >
> > >
> > >
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