That's completely wrong. TimesTen and Coherence are 2 separate products sold by Oracle. Coherence is a data grid that takes a key/value approach. It is massively scalable across LAN and WAN.
In terms of comparing Cassandra and Coherence, I wouldn't. Coherence is a data grid and most often used as a fault tolerant distributed cache, though it does a lot more than that. Oracle bought Tangosol a few years back. On Fri, May 20, 2011 at 4:23 AM, Jeffrey Kesselman <jef...@gmail.com> wrote: > I believe coherence is their name for the TimesTen technology they bought. > > TT is an in memory SQL database that can run as a cache for Oracle. > > Its totally different from Cassandra. On the one hand it supports > trad SQL whereas Cassandra does not. On the other hand Cassandra is > truly distributed and fault tolerant, whereas TT is not. > > I suggest getting and reading the Oriely Cassandra book. > > JK > > On Tue, May 17, 2011 at 10:44 PM, Karamel, Raghu > <raghu_kara...@intuit.com> wrote: >> Hi, >> >> >> >> I am new to Cassandra and very excited with the technology. I am evaluating >> it and trying to understand the difference between Cassandra and Oracle >> Coherence. Precisely , looking for reasons why would some select Cassandra >> over Oracle Coherence. Does anyone did the exercise of comparing them? >> Appreciate if you can share some information on that. >> >> >> >> Regrads >> >> -RK > > > > -- > It's always darkest just before you are eaten by a grue. >
