Re: [ClusterLabs] How to mount rpc_pipefs on a different mountpoint on RHEL/CentOS 7?

[Dennis Jacobfeuerborn]

On 31.10.2017 12:58, Ferenc Wágner wrote:
> Dennis Jacobfeuerborn  writes:
> 
>> if I create a new unit file for the new file the services would not
>> depend on it so it wouldn't get automatically mounted when they start.
> 
> Put the new unit file under /etc/systemd/system/x.service.requires to
> have x.service require it.  I don't get the full picture, but this trick
> may help puzzle it together.
> 

It seems the nfsserve resource agent isn't compatible with
RHEL/CentOS-7. These systems always mount /var/lib/nfs/rpc_pipefs on
boot but the resource agent script actually checks if "/var/lib/nfs" is
present in /proc/mounts and if that is the case then it will refuse to
start the nfs server thus preventing the fail-over.
I honestly have no good idea how to solve this as the mounting of
/var/lib/nfs/rpc_pipefs is basically hard-coded into the RHEL/CentOS
service files.

Regards,
  Dennis


___
Users mailing list: Users@clusterlabs.org
http://lists.clusterlabs.org/mailman/listinfo/users

Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org

Re: [ClusterLabs] How to mount rpc_pipefs on a different mountpoint on RHEL/CentOS 7?

[Ferenc Wágner]

Dennis Jacobfeuerborn  writes:

> if I create a new unit file for the new file the services would not
> depend on it so it wouldn't get automatically mounted when they start.

Put the new unit file under /etc/systemd/system/x.service.requires to
have x.service require it.  I don't get the full picture, but this trick
may help puzzle it together.
-- 
Feri

___
Users mailing list: Users@clusterlabs.org
http://lists.clusterlabs.org/mailman/listinfo/users

Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org

[ClusterLabs] How to mount rpc_pipefs on a different mountpoint on RHEL/CentOS 7?

[Dennis Jacobfeuerborn]

Hi,
I'm trying to create a redundant NFS system but hit a problem with the
way the nfs packages on RHEL/CentOS 7 handle the sunrpc mount point.

I put /var/lib/nfs on its own redudant drbd device but on a failover the
nfsserver resource agent complains that something is already mounted
below /var/lib/nfs which would be the rpc_pipefs mountpoint.

The problem is that mount units don't really support drop-ins because
the "Where" directive must match the filename of the unit file. As a
result I'm in a situation where I cannot rename/modify the nfs-utils
supplied unit file as this would break things after an update, I cannot
mask the unit as that would prevent the nfs services from starting and
even if that could be worked around if I create a new unit file for the
new file the services would not depend on it so it wouldn't get
automatically mounted when they start.

What I want to express is "instead of mounting sunrpc on
/var/lib/nfs/rpc_pipefs mount it on /var/lib/rpc_pipefs" but I cannot
see a good way to do this.

Any ideas?

Regards,
  Dennis

___
Users mailing list: Users@clusterlabs.org
http://lists.clusterlabs.org/mailman/listinfo/users

Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org