[Gluster-users] Floating IPv6 in a cluster (as NFS-Ganesha VIP)

[Jan]

Hi all,

thank you very much for support! I filed the bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1457724

I'll try to test it again to get some errors / warnings from log.

Best regards,

Jan

On Wed, May 31, 2017 at 12:25 PM, Kaleb S. KEITHLEY <kkeithle at redhat.com>
wrote:

> On 05/31/2017 07:03 AM, Soumya Koduri wrote:
> > +Andrew and Ken
> >
> > On 05/29/2017 11:48 PM, Jan wrote:
> >> Hi all,
> >>
> >> I love this project, Gluster and Ganesha are amazing. Thank you for this
> >> great work!
> >>
> >> The only thing that I miss is IPv6 support. I know that there are some
> >> challenges and that’s OK. For me it’s not important whether Gluster
> >> servers use IPv4 or IPv6 to speak each other and replicate data.
> >>
> >> The only thing that I’d like to have is a floating IPv6 for clients when
> >> I use Ganesha (just IPv6, dual stack isn’t needed).
> >>
> >> I tested it and I put IPv6 into ganesha-ha.conf instead of IPv4 and it
> >> didn’t work. But I think that it might work since Ganesha supports IPv6:
> >>
> >> netstat -plnt
> >>
> >> tcp6   0    0 :::2049    :::*  LISTEN  1856/ganesha.nfsd
> >>
> >> Is there a way how to do that? Maybe build a cluster with IPv4 and then
> >> change “something” in Pacemaker / Corosync and replace IPv4 by IPv6?
> >>
> >
> > At-least from [1] looks like it is supported. Do you see any
> > errors/warnings in the log files? (/var/log/messages,
> > /var/log/pacemaker.log, /var/log/corosync.log)
> >
> >
> > [1] https://www.systutorials.com/docs/linux/man/7-ocf_heartbeat_IPaddr2/
> >
>
> /usr/lib/ocf/resource.d/heartbeat/IPaddr2 does support IPv6:
>
>   ...
>   <shortdesc lang="en">Manages virtual IPv4 and IPv6 addresses (Linux
> specific version)</shortdesc>
>
>   <parameters>
>   <parameter name="ip" unique="1" required="1">
>   <longdesc lang="en">
>   The IPv4 (dotted quad notation) or IPv6 address (colon hexadecimal
> notation)
>   example IPv4 "192.168.1.1".
>   example IPv6 "2001:db8:DC28:0:0:FC57:D4C8:1FFF".
>   </longdesc>
>   ...
>
>
> If it's not working I suspect the ganesha-ha.sh script may not handle
> IPv6 addrs from the ganesha-ha.conf correctly.
>
> Please file a bug at
> https://bugzilla.redhat.com/enter_bug.cgi?product=GlusterFS component:
> common-ha, version: 3.10.
>
> Patches are nice too. ;-)
>
> Thanks
>
> --
>
> Kaleb
>
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