Further, I'd discourage anyone from using NFS for their read/write index
location.
I don't know about Windows either, but I'd think there could be similar
non-atomic issues with windows fileshares.  That's even in the case where
you have one RW and the others are reads.

--cw

On 3/24/06, Chris Hostetter <[EMAIL PROTECTED]> wrote:
>
>
> : In this case we are looking at having multiple tomcats to provide us
> : with load balancing and failover.  We are not looking at a master/slave
> : index solution.  We'll also be working on windows.
>
> I'm not very faimilar with windows, but if your goal is to have load
> balanced servers for failover, then what is the advantage of running those
> multiple servers on the same box (pointed at teh same index directory)?
> ... if the box goes down, you're up a creek.
>
> what we do is have one master port that recieves all of the updates and
> has a postCommit hook which makes snapshots.  then we have many slave
> ports (running on other machines) which pull the snapshots at regular
> intervals, and are all accessible behind a load balancer.
>
> if one slave goes down -- no big deal, the load balancer stops using it.
>
> if the master goes down, the slaves happily keep serving queries, but new
> updates can't be published untill we install a "master" configuration
> (with thepostCommit hook) on one of the slaves, and change the DNS record
> for the master to point at that slave -- at which point it because the
> new master.
>
> I know the existing snapshotter/snappuller scripts in subversion don't
> work on windows, but one of the items on the task list is to try and come
> up with equivilent methods that can -- if you have any ideas on how that
> can be achieved that would be great!
>
>
>
>
> -Hoss
>
>

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