[Building Sakai] Clustering a HashMap

[Adrian Fish]

Does anybody have any experience with replicating a hashmap across a 
cluster of Sakai's? The floating chat service keeps a couple of hashmaps 
in memory which store heartbeats and messages from users. In a cluster 
I'm assuming these will get out of sync so I need to work out how to 
avoid that.

At the moment I'm playing with creating an EhCacheFactory bean in my 
spring config, using the MemoryService to create a Cache instance and 
then putting the hashmaps in that if they are not already there.

Any tips greatly appreciated :)

Cheers,

Adrian.

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Adrian Fish
Software Engineer
Centre for e-Science
Bowland Tower South C Floor
Lancaster University
Lancaster
LA1 4YW
email: a.fish at lancaster.ac.uk

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