Guys,
I am new to Coherence and looking for few answers:
I know Coherence is In-Memory grid solution but i am looking for some technical clarification:
1) Does Coherence need only WebLogic Server or it can be used with other competitor Applications Servers as well?
2) Does it store the entire cache only in RAM or it can also use Databases tables?
3) If it stores all the caches in RAM that means if somehow, server is restarted or hardware power is lost, the data is lost too?
4) Can Coherence spread across multiple data centers or even geographically?
5) Do we need to install Coherence on a separate server? separate weblogic domain?
6) Should it match with the number of WL Admin and Managed servers? i.e. One Coherence Admin server per WL Admin server and As many as Coherence Managed Servers per WL Managed Servers?
7) How does it work with RAC environment?
8) If a Coherence cluster need to spread across multiple data servers, do we need to have one managed WL instance at every data center?
Some of the questions may be stupid one but please bear with me
Thanks
DD