Services - RAC

Question

Hi everyone,
I have a big doubt about services in RAC i hope somebody can help me because i have read a lot of notes and articules but it is not clear for me.
Acoording to balance of load in services in RAC is for: LBA (RESPONSE_TIME or THROUGHTPUT) + CLB (SHORT or LONG)
Acoording to this white paper:
http://www.google.com.pe/url?sa=t&rct=j&q=%20automatic%20workload%20management%20with%20oracle%20real%20application%
20clusters&source=web&cd=1&cad=rja&ved=0CCgQFjAA&url=http%3A%2F%2Fwww.oracle.com%2Ftechnetwork%2Fproducts%2Fclustering%2Foverview%2Fawmrac11g-
133673.pdf&ei=-KVQUKi5IY2i8QSLwIGgBg&usg=AFQjCNFY8GPTHmop5DDWqK7zKuTAEw_VGA
Only in connections SHORT taken the LBA (RESPONSE_TIME or THROUGHPUT)
and for connections LONG it ignores the LBA and only balance though number of conections.
So my doubt is, when i should or when is recommend (in what scenaries) use connections SHORT in mode THROUGHPUT?
Really thank you if somebody can help me in it.
Regards.

Answer 1

I'm still not clear on what you want, but I think of it like this:
The GOAL of the service enables FAN, specifying either RESPONSE_TIME or THROUGHPUT. This is for runtime load balancing. RESPONSE_TIME will route a request to the instance performing best in terms of response time, THROUGHPUT will route it to the instance responding best in terms of calls per second.
The CLB_GOAL of the service enables connect time load balancing. LONG will launch a new session against the instance with the lowest concurrent sessions, SHORT will launch a new session against the instance currently performing best according to the GOAL algorithm.
HTH.