Greg, One of my customers does, and has had at a time something like 10 or 15 replicated databases, using a 'hub-and-spokes' topology. They weren't using Oracle replication, but some in-house code, not flawless but by-and-large satisfactory for their needs. It isn't 'synchronous' replication proper (to me, the main advantage of replication is the shock-absorbance provided by queues) but near real-time across 3 continents (something like 4/5 seconds for a Paris to Tokyo roundtrip). SF Loughmiller, Greg wrote: >Hey guys, > > >Just curious here.. But "who" out there is using some sense of >master-to-master replication of an OLTP application using to provide their >clients a level of availability? So for example, two databases which would >reside in geographically diverse data centers with synchronous replication >:-) > > > > > >I'm not a big fan of master-to-master synchronous replication (nor async >replication) as I believe the complexity and operational overhead would far >exceed providing a Stand By Database (Data Guard). But I'm looking for some >feedback/experience from the folks on the mailing list. > > > > > >Thanks in advance!! > > > >Greg Loughmiller > > > ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------