Hi Tony: On Mon, May 23, 2011 at 4:55 PM, Anthony J. Biacco < [email protected]> wrote:
> I think i read somewhere the server in the mount string is only used to > retrieve the cluster config. So as long as that server is up at time of > mount, you're fine. > Yes, It is in the offcial documentation. I am trying to avoid that. My final objetive is high availability. > If the server goes down after mount, it doesnt matter as the cluster config > on the mounting servers knows about all gluster servers. > Yes, there is no problem after mounting becasuse I use replication. The problem is in new mountig processes after the seleted "master gluster server" crashes. > Somebody correct me if i'm wrong. > Personally, i copy the cluster config to all my mounting servers and use > that file in the mount command instead of a gluster server hostname. > Yes. That is ok, but I am finding an automatic way in case I make an auto-scalable Gluster deployment. If something change in Gluster like the number of servers (I could add more servers later) then I would have to copy the new volumen info to my Apache Rol Amazon Image, and this can not be done automatically. Other way could be doing a script to load that file from S3 but I would have to copy the new volume info file to S3 every time It changes, and I don´t know how this can be done because I don´t know how monitoring and catch Gluster volumes changes. > -Tony > > > > > -----Original Message----- > From: Joshua Baker-LePain <[email protected]> > Sent: May 23, 2011 9:16 AM > To: José Celano <[email protected]> > Cc: [email protected] <[email protected]> > Subject: Re: [Gluster-users] Scaling Gluster > > On Thu, 19 May 2011 at 12:40am, José Celano wrote > > > I have 2 replicated servers and several Apache servers that mount the > same > > volume. > > When I mount a Gluster Volumen from one of the Apache servers > > > > mount.glusterfs > > > ip-XX-XXX-XXX-XXX.eu-west-1.compute.internal:/dab578f4-06fa-4584-ac1d-c6ef14e6d0cf > > /mnt/glusterfs > > how could I obtain high availability if that server die? > > Use ucarp to share a virtual IP address between the Gluster servers, and > mount using that IP address. > > -- > Joshua Baker-LePain > QB3 Shared Cluster Sysadmin > UCSF > >
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