Date: Sun, 30 May 2004 20:25:50 -0500 From: "adp" <dap99@i-55.com> To: <questions@freebsd.org> Subject: Re: NFS server fail-over - how do you do it? Message-ID: <011401c446ae$3aa4cff0$6501a8c0@yourqqh4336axf>
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One of my big problems right now is that if our primary NFS server goes down then everything using that NFS mount locks up. If I change to the mounted filesystem on the client then it stalls: # pwd /root # cd /nfs-mount-dir [locks] If I try to reboot the reboot fails as well since FreeBSD can't unmount the filesystem!? How do I stop this from happening? I am using this to mount NFS filesystems: # mount -o bg,intr,soft ... ----- Original Message ----- From: "adp" <dap99@i-55.com> To: <questions@freebsd.org> Sent: Sunday, May 30, 2004 2:43 AM Subject: NFS server fail-over - how do you do it? > I am running a FreeBSD 4.9-REL NFS server. Once every several hours our main > NFS server replicates everything to a backup FreeBSD NFS server. We are okay > with the gap in time between replication. What we aren't sure about is how > to automate the fail-over between the primary to the secondary NFS server. > This is for a web cluster. Each client mounts several directories from the > NFS server. > > Let's say that our primary NFS server dies and just goes away. What then? > Are you periodically doing a mount or a file look-up of a mounted filesystem > to check if your NFS server died? If so are you just unmounting and > remounting everything using the backup NFS server? > > Just curious how this problem is being solved. > >
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