[Ocfs2-users] Fwd: Problems mounting shared filesystem

Chris Clonch
Tue, 23 Mar 2010 19:07:37 -0000

Thanks for the reply Sunil! ?I thought it might be a network issue,
but when I enabled debug then ran netcat against it I could connect.
Firewall and SELinux are both disabled on all nodes.

I went ahead and reran the ethernet for both sets of NIC to ensure the
old hub I was using was not a factor. ?Now everything runs through an
enterprise-class switch. ?Stats from netstat and ethtool look normal;
I did not view them prior to the changes. ?I also pulled down the
latest updates from RHEL (did I mention these are RHEL5.4?), which
included kernel-2.6.18-164.15.1.el5. ?Now the ocfs2_stackglue and
ocfs2_dlmfs modules are failing to load.

-Chris


On Mon, Mar 22, 2010 at 4:52 PM, Sunil Mushran <sunil.mushran at
oracle.com> wrote:
>
> The network connect is failing. Could be because of a firewall,
> or bad ip address, some switch issue.
>
> Mount the volume on node 2. Then enable tracing and
> tail messages file.
> # debugfs.ocfs2 -l TCP allow
> # tail -f /var/log/messages
>
> Then from node 4, ping node 2 using netcat.
> # nc -z 192.168.1.2 7777
>
> If it succeeds, then you should see:
> Connection to 192.168.1.2 7777 port [tcp/cbt] succeeded!
>
> Additionally, you will see a message on node 2 "attempt to connect
> from node...".
>
> If not, then look at your network setup.
>
> Remember to disable tracing on node 2.
> #debugfs.ocfs2 -l TCP off
>
> Sunil