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Re: Tomcat 6.0 vs Tomcat 5.5 Clustering Changes

Filip Hanik

2007-01-04

Replies:

Mainly its been refactored, farming as in 5.5 is still pretty broken and
hasn't been worked on.
What has been worked on is the separation of session replication vs
cluster/group communication. These are two separate packages now
o.a.catalina.tribes (group com, simple overview at
http://people.apache.org/~fhanik/tribes/docs/introduction.html)
o.a.catalina.ha (data replication)

The cluster config has been documented in the reference, in 5.x it wasn't.
Some new features added (but not limited to)
1. primary/backup replication using shadow maps
2. context attribute replication
3. Ability to use per context managers when clustering contexts, ie, one
can use a BackupManager and the other a DeltaManager
and so on, to get the documentation up to date is still on the todo list
Filip

Troy Davidson wrote:
> I am trying to find a list of the differences between Tomcat 6.0 and
> Tomcat 5.5 clustering and farming.
>
> Does anyone have a list like this or where to find the information.
>
> Thanks.
>
> ++++++++++++++++++++++++++++++++++
> Troy Davidson
>
>
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