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Hi, Atul,

I have a shared APPL TOP APPS structure of two nodes, we are using DNS F5BigIP load balancer(it seems to be the same as HTTP LB), but I found the two nodes' Jserv Properties file has the same ports range defined, say, port=16750-16759(we do not use the conventional default port 8001/8007). If we are using Jserv LB, should we allocate the ports into two nodes? We have a F5 server using DNS LB, can you tell me the advantages and drawbacks of DNS and Jserv LBs?

We use session persistent(as most session will take long time, keeping them active over 2 hours) I found DB tiers are not load balanced well, one is pretty heat. I have a Plug-ins used with my grid control to monitoring the F5, but how can I figure out if LB works well or not?

Thanks a lot,

Hank

 

Hardware loadbalancer are always better and preferred over software loadbalancer as HW LB is stable and provide more configurations.

Your question about loadbalancer is not clear .

Do you want to check if LB is working or not meaning its transfering requests to both servers or not ?
If you wish to check this , check access_log on both servers and you should get hits on both web servers configured in pool of load balancer.

 

Atul,

Thanks a lot for the information.
I am using the shared top structure, so the access log from two nodes merged, I did find some seesions from some clients, but it hard to to tell which apps node were hit.

Hank

 

Have you modified access_log location in httpd.conf files from two nodes to same location ?

You can check for processes "ps -ef | grep httpd" to check if new connections are coming to both servers or not, if this is one time test. shutdown first middle tier & test and then second middle tier

 

Hi atul

i am using two nodes for oracle applications (forms,apache).now i want to configure oracle application with two url's coz i am not using any bigip .
1)can i confgure two url's in oracle applications for two nodes?
2) how can i loadbalnce without any bigip ?

please suugest us and give me configuration how to setup loadbalancer without using thirdparty loadbalancer or any native method in oracle applications for loadbalncer?

Thanks a lot

Sree

 

Sree,

Yes you can configure two url's for two nodes both pointing to single instance using profile options and context file.

2) how can i loadbalnce without any bigip ?

Use any other supported software load balancer, one which I am aware is Oracle WebCache as load balancer in front of E-Business Suite

 

Hello,
You've said as a first step "A. Configure Hardware Load Balancer for Session Persistence",the Q is,is it mandatory to be Session Persistence not Non Session Persistence?
Regards

 

Hi atul,
Is Networked load balancer will acts as a hardwared loadbalancer.

I am having the 2 Apps tier nodes for production application and 2 for oracle 10g RAC, How can i achive this http load balancing with only two physical m/c for entire application services.

Thanks

Vasu

 

Hi atul,
Is Networked load balancer will acts as a hardwared loadbalancer.

I am having the 2 Apps tier nodes for production application and 2 for oracle 10g RAC, How can i achive this http load balancing with only two physical m/c for entire application services.

Thanks

Vasu

 

Hi Atul,

We have configure folt tolerance using 2 web & form server on two different node ,
Our configuration is as below :

Node A: CARD
Node B: WF
Node C: WF

but now we wants setup load balancer , can you please let me know how do i set up http load balancer for both the 2 web nodes , Also if it possible kindly provide me metalink note on the same.

 

Thanks for sharing.
i helped a lot

 

Hi Atul,
I am having problem on URLs when I use load banalncer for my web servers setup with Oracle Application server. I have an alias name in DNS so when users try to loging into web servers they only see the alias name. Even when they login they should not see what web servers they are conneted to. However, at this time when a user login into the web environment through my hardware load balancer it would then direct them directly to the particular XYZwebserver bypassing my hardware/software load balancer. It actually shows exact URL that user is connected to.
Do you know if there is any place that i can chage this setting or at least if I can mask the real url?

Thanks,
Amir

 

Thanks for keeping us informed.