Connection with a remote cache

Hi,
I have an option to connect to cohernace clustre by
1) Connect as an Extends node
2) Connect as a non storage node
out of the 2 options which one is better and why ?
I think conncetion as a non storage node is a better option, I have to connect to a remote cache, so I am tempted to use Extend node connectvity, so I am interested to know the limitation of Extnds node over non storage node (if any) .
Thanks

Hi,
Every option will be better or not depending on your requirements.
If the client application that you are going to connect to the Coherence cluster is written in Java then you have the option of connect as storage-disabled node. This is what you would likely do for a long-running, web-based application that is collocated with the data grid.
If your application will probably be getting connected and disconnected from the Coherence cluster several times (i.e. many times a day) then even if it's storage disabled it may result in some overhead, as cluster membership information needs to be maintained. This could be aggravated if your client access the cluster across an unreliable, high-latency WAN link. For this kinds of clients, Coherence*Extend allows you to keep cluster membership as stable as possible, and the amount of network traffic caused by repartitioning to a minimum.
Also, consider that Coherence*Extend is your only option when you need to access the Coherence cluster from a non-Java application, such as .NET or C++ clients.
Regarding limitations of extend nodes, the "Best practices for coherence Extend" document could be useful for you. it is available at http://coherence.oracle.com/display/COH35UG/Best+Practices+for+Coherence+Extend
-Cris

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