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From Jeff Genender <jgenen...@savoirtech.com>
Subject Re: Clustering
Date Fri, 14 Oct 2005 20:15:04 GMT
Nice!  Keep it coming Dave!

Dave Colasurdo wrote:
> 
> Jeff Genender wrote:
> 
>>
>>
>> Geir Magnusson Jr. wrote:
>>
>>>
>>> What %age of users will be able to take advantage of this?  90%? :)
>>>
>>> What other ways are you thinking of clustering?
>>
>>
>>
>> JMS, EJB, Caching, etc.
>>
> 
> Here are some of the characteristics of clustering that we should consider:
> 
> JSP/Servlet Load Balancing
> -HttpSession Sticky port/Affinity
> -HttpSession failover
> -File based persistence
> -Database persistence
> -Memory replication (all -> all)
> -Memory replication (one -> designated server(s))
> 
> Heartbeat/Health Check
> 
> EJB Load Balancing (EJBHome stub or EJBObject stub)
> -JNDI Lookup OR
> -Smart Stub (Client) OR
> -IIOP runtime (Client)OR
> -Interceptor Proxy
> 
> EJB Failover
> -Stateless Session Bean
> -Stateful Session Bean (sticky)
> -Entity Bean
> -MDB??
> 
> JNDI clustering
> -Shared global JNDI Tree OR
> -Independent JNDI OR
> -Centralized JNDI (on single server)
> 
> Web Service Clustering
> JDBC Clustering
> JMS Clustering
> 
> 
> Management Capability
> -Adding to a cluster
>  -Manual addition
>  -Automatic discovery
> -Deploying applications to a cluster
>  -Manual deployment to each each member OR
>  -Centralized deployment OR
>  -Farming (hot deployment across a cluster)
> 
> -Cluster Configuration Model
>  -Independent OR
>  -Shared File System OR
>  -Managed
> 
> -Dave-

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