tag:blogger.com,1999:blog-33209370.post9117807957052029729..comments2023-10-23T17:52:37.156+00:00Comments on Oracle Analytics: Cluster ....Adrian Wardhttp://www.blogger.com/profile/12467688997292586407noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-33209370.post-30701317649321877762007-11-21T18:38:00.000+00:002007-11-21T18:38:00.000+00:00Hi, Following is the OBI environment we currently ...Hi, <BR/>Following is the OBI environment we currently have: <BR/>1 Instance of OBI 10.1.3.2 server component installed on Server Machine <BR/>1 Instance of OBI 10.1.3.2 presentation services installed on seperate Web Server machine <BR/>OBI Scheduler services installed but not configured and not in use. <BR/><BR/>We now have a requirement to configure OBI for high availability with BigIP, a load balancer server which will be entry point for End User web requests. This would load balance between the two web servers which would connect to one BI Server instance. Thus, webcat file will be placed on a shared network drive where it saves changes received from any one of the two web servers. <BR/>We are not clustering the BI Server, thus, we have only one BI Server machine that hosts Admin Tools/respository. <BR/><BR/>I have read chapters 3 and 4 of OBIEE Deployment Guide that explain the clustering and load balancing for high availability, however, if you can answer/explain a procedure that would specifically apply to my above explained scenario, it would really help me clear some confusions. <BR/><BR/>1. Using IIS, does BI Presentation Services Plug-in (Java Servlet)or ISAPI Plug-in install on server machine that will act as Load Balancer only or does it need to be installed on the 2 web servers (where presentation services are installed)? or all three? <BR/><BR/>2. Since we have only one BI Server, do we need to install and configure BI Cluster Controller, configure Scheduler or change NQClusterConfig.INI file? <BR/><BR/>The guide mentions "Since communications to BI Presentation Services instances in a cluster are not controlled via the Cluster Controllers, the list of BI Presentation Services instances must be specified. This is done <BR/>either through Job Manager or the schconfig utility. When more than one BI Presentation Services instance is specified, load balancing of requests to the multiple BI Presentation Services instances automatically takes effect."<BR/><BR/>3. Does this mean, BI Cluster Controller installing and enabling need not required, simply install ISAPI on IIS hosts, configure isapiconfig.xml file and we are done? <BR/><BR/>I would really appreciate your help. Also if you have come across any blog or any other documents that explain clustering/load balancing of OBI, it would be a great help. <BR/><BR/>Thank you, <BR/>Regards, <BR/>Afia TahirAnonymousnoreply@blogger.com