[Gluster-users] HA NFS

[Layer7 Consultancy]

Hi,

I've been doing some testing with ucarp and unfs, but without any luck. The
VIP failover works flawlessly and clients only lose 1 ICMP echo reply while
pinging the VIP during failover. However, file transfers are interrupted and
never finish and the processes are hanging. Could anybody give me some more
details on how to set this up?

Best regards,
Koen Calliauw



2010/7/14 Tejas N. Bhise <tejas at gluster.com>

> Hi Koen,
>
> We are infact looking at integrating this into the platform.
>
> Regards,
> Tejas.
> ----- Original Message -----
> From: "Layer7 Consultancy" <info at layer7.be>
> To: "Gluster General Discussion List" <gluster-users at gluster.org>
> Sent: Wednesday, July 14, 2010 1:06:38 PM
> Subject: Re: [Gluster-users] HA NFS
>
> Thanks Vikas,
>
> I think I have enough information now to set up a proof of concept.
> Perhaps this (ucarp install by user) is something to be mentioned on
> the website? Even better would be integration into Gluster Platform
> ;-)
>
> Best regards,
> Koen
>
> 2010/7/14 Shehjar Tikoo <shehjart at gluster.com>:
> > Layer7 Consultancy wrote:
> >>
> >> Hello Vikas,
> >>
> >> How do the NFS clients react to such a failover? Will the I/O just
> >> temporarily stall and then proceed once connectivity is resumed or
> >> will running transactions be aborted?
> >>
> >
> > There may be some delay as the IP migrates but overall, the NFS client's
> > retransmission behaviour will be able continue the transactions with no
> > interruptions.
> >
> >> Best regards,
> >> Koen
> >>
> >> 2010/7/13 Vikas Gorur <vikas at gluster.com>:
> >>  Your understanding is correct. Whether using the native NFS
> >> translator or re-export through unfsd, NFS clients only connect to the
> >> management IP. If you want failover for the NFS server, you'd setup a
> >> virtual IP using ucarp (http://www.ucarp.org) and the clients would
> >> only use this virtual IP.
> >>>
> >>> ------------------------------
> >>> Vikas Gorur
> >>> Engineer - Gluster, Inc.
> >>> ------------------------------
> >>
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