[Linux-cluster] nfs4 kerberos

[Daniel R. Gore]

A better solution for NFSv4 in a cluster is really required. 


A better cookbook with more real life likely scenarios for clustering
solutions would be really helpful.  How many people actually setup the
complex three layered solutions depicted, as compared to people setting
up simple two/three node servers to for authorization, authentication,
file and license serving.  It appears that the small business applicable
system is completely ignored.   


On Thu, 2011-04-07 at 11:44 +0100, Colin Simpson wrote:
> That's interesting about making the portmapper dependant on the IP, was
> this for the same reason I'm seeing just now. I used the method from NFS
> cookbook where I pseudo load balancing by distributing my NFS exports
> across my nodes. Sadly the RHEL 6 portmapper replacement (rpcbind)
> replies on the node IP and not the service IP, and this breaks NFSv3
> mounts from RHEL5 clients with iptables stateful firewalls.
> 
> I opened a bug on this one and have a call open with RH (via Dell) on
> this:
> https://bugzilla.redhat.com/show_bug.cgi?id=689589
> 
> But I too would like a good clean method of doing kerberized NFSv4 on a
> RHEL6 cluster. I thought NFSv4 being so central to RHEL6 this would be
> easy on a RHEL6 cluster (without using XEN)? Can the cookbook be
> updated?
> 
> Which brings up another point. The RHEL cluster documentation is good,
> however it doesn't really help you implement a working cluster too
> easily (beyond the apache example), it's a bit reference orientated. I
> found myself googling around for examples of different RA types. Is
> there a more hands on set of docs around (or book)? It could almost do
> with a cookbook for every RA!
> 
> Thanks
> 
> Colin
> 
> On Thu, 2011-04-07 at 02:52 +0100, Ian Hayes wrote:
> > Shouldnt have to recompile rpc.gssd. On failover I migrated the ip
> > address first, made portmapper a depend on the ip, rpc.gssd depend on
> > portmap and nfsd depend on rpc. As for the hostname, I went with the
> > inelegant solution of putting a 'hostname' command in the start
> > functions of the portmapper script since that fires first in my
> > config.
> > 
> > > On Apr 6, 2011 6:06 PM, "Daniel R. Gore" <danielgore at yaktech.com>
> > > wrote:
> > > 
> > > I also found this thread, after many searches.
> > > http://linux-nfs.org/pipermail/nfsv4/2009-April/010583.html
> > > 
> > > As I read through it, there appears to be a patch for rpc.gssd which
> > > allows for the daemon to be started and associated with multiple
> > > hosts.
> > > I do not want to compile rpc.gssd and it appears the patch is from
> > > over
> > > two years ago.  I would hope that RHEL6 would have rpc.gssd patched
> > > to
> > > meet this requirement, but no documentation appear to exist for how
> > > to
> > > use it.
> > > 
> > > 
> > > 
> > > 
> > > 
> > > On Wed, 2011-04-06 at 20:23 -0400, Daniel R. Gore wrote:
> > > > Ian,
> > > > 
> > > > Thanks for the info. 
> > > > 
> > > >...
> > > 
> > 
> > plain text document attachment (ATT114553.txt)
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