Questions abt loadbalancing and WEBCACHE

Question

Can anybody provide documentation according to questions raised here.
1.for loadbalancing we r thinking of using Web Cache(it will come with oracle10.1.2 app server). what does web cache
do other than load balancing?
2.How loadbalancing does work in webcache ?
3.how ejb container session replication different from user's session replication?
4.suppose when we install 2 appserver's in the
system,we can set multiple JVM's in app servers.how
multiple JVM's behave in clustering.
5.how fail-over works in Oracle10g.
6.in one node servicing 100 users of client requests ,in other node servicing only 30 users of client requests. can we share load between instances(2 nodes)?if yes how?
6. what are the changes should we make at code level

Answer 1

Hi,
To elaborate more on the answer to question 6 of yours, Web Cache allows the user to specify how much load should be placed on each node. say, you want 40% of the requests to go to one node and 60% to the other node, Web Cache allows for such configuration to be specified. Hope this clarifies your doubt.
As pointed out in the earlier reply, no changes are required at the code level. If you want to use Web Cache for caching content, then you might want to set rules as to for how long you want to cache the content actually. Then , if you suddenly want to remove the content from the cache, then, at this point, you might need to use the Invalidation API provided inn Web Cache to remove the doc from the cache ....for this purpose, you might need to write some code in java to use the invalidation apui to remove the doc from the cache. otherwise you generally need to do anything extra to make the cache cache the content.
Hope this explanation helps and is clear :-)
Regards,
Priyanka GES
Oracle Web Cache Team