Re: mirroring data across a server cluster

2001-04-03 Thread Christopher L. Everett
Paul Cotter wrote: > [OT] - but... I disagree somewhat about OT; I see your point but, I want to use this class specifically in mod_perl handlers. Also, clustered servers are definitely on topic, I think. > Do not throw out database replication as a solution. I remember a previous discussion

Re: mirroring data across a server cluster [OT]

2001-04-02 Thread Todd Finney
Wouldn't it be easier to just buy an external RAID enclosure with dual scsi ports, and connect it both machines to the same disk backend? Your replication problem goes away, and you have half as many disks available for failure. Some models even allow for connection among three or more machi

Re: mirroring data across a server cluster

2001-04-02 Thread Paul Cotter
[OT] - but... Do not throw out database replication as a solution. Trying to maintain synchronicity across multiple databases is not a trivial task. You have to cope with single point failure at the transaction level, (eg the server 'one' update works, but server 'two' fails) clashes (same recor

Re: mirroring data across a server cluster

2001-04-01 Thread Perrin Harkins
> I'm trying to address 2 issues: > > A. Avoiding a single point of failure associated with a >having a central repository for the data, such as a NFS >share or a single database server. > B. Avoiding the overhead from using heavyweight tools like >database replication. > > So I've bee