IBM Support

Cognos Analytics IIS Gateway loops at login when servers from multiple environments are in a single ca_servers server group

Troubleshooting


Problem

When servers from multiple Cognos Analytics environments are added to the same ca_servers group in IIS, the gateway URI enters a loop-condition during Single SignOn.

Symptom

Login loops constantly
Libraries such as require.js return a 404 error in a browser trace.

Cause

When the IIS_Config.bat file was run, the default server group (ca_servers) was not changed for each environment.
This results in all of the servers for multiple environments being added to the same server farm, which results in a conflict during login.

Environment

Cognos Analytics 11.1.7
Windows 2016
IIS WebServer

Diagnosing The Problem

  1. Checking the ca_servers server farm displays dispatchers from multiple environments
  2. Replacing {ca_servers} in the /bi rewrite rule with a dispatcher URL, allows login to be completed successfully

Resolving The Problem

  1. Edit the IIS_Config.bat file to change the name of the Server Farm from ca_servers, to another name, which causes it to be created when the script is run again
  2. Remove the incorrect servers from the ca_servers Server Farm
  3. Rerun the IIS_Config.bat script.

Document Location

Worldwide

[{"Type":"MASTER","Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSTSF6","label":"IBM Cognos Analytics"},"ARM Category":[{"code":"a8m50000000Cl6iAAC","label":"Installation and Configuration->Gateway"}],"ARM Case Number":"TS007308821","Platform":[{"code":"PF033","label":"Windows"}],"Version":"11.1.7"}]

Document Information

Modified date:
23 October 2021

UID

ibm16507921