Oracle weblogic coherance Questions

Helllo Team,

Could you please help me to understand about consistency.

1: what is the oracle weblogic server consistency, how it useful in real time scenarios.
(2) that I saw in the documents of the oracle, he was in the memory grid, is it's keep business logic, in this case in weblogic cluster as we use even in memory replication, how this different between cluster weblogic.

(4) is coherance is a database.

Kindly help me questions to understand on oracle weblogic server consistency .is there any simple document above or liniks also very well.

Thank you
Reddy

Maybe this (http://middlewaremagic.com/weblogic/?p=8351) can help you on the way.

This (http://docs.oracle.com/cd/E24290_01/coh.371/e22620/start.htm#CIHHAAIH) provides a good summary of what coherence * Web.
«Coherence * Web is a HTTP session management module dedicated to the management of session state in a clustered environment.» Built on top of the coherence of the Oracle (consistency), coherence * Web:
-brings data grid of data consistency, scalability, availability, reliability and performance for the session in memory management and storage.
-can set fine-grained and session attribute carried through pluggable policies (see "Session and Session attribute framing).
-can be deployed on multiple servers to consumer applications such as Oracle GlassFish Server, Oracle WebLogic Server, IBM WebSphere, Tomcat and so on (see "Supported Web containers").
-can be deployed on several Portal containers, including Oracle WebLogic Portal (see Chapter 10, "Using coherence * Web with WebLogic Portal").
-allows storage of session data outside the Java EE application server, freeing heap for the application server space and allow the restart of the server without loss of session data (see "Deployment Topologies").
-allows the sharing of session and management across different Web applications, domains and servers in heterogeneous applications (see "Session and Session attribute) scope.
-can be used in models of advanced session (that is, traditional, monolithic and split Session) that define how session state is serialized or deserialized in the cluster (see templates "Session"). »

Tags: Fusion Middleware

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