Merge pull request #9815 from mburke5678/BZ-1577220

Ansible-based installation reuses incorrect/unintended configuration value

Author: mburke5678

install_config/install/advanced_install.adoc

@@ -2523,6 +2523,15 @@ If for any reason the installation fails, before re-running the installer, see
 xref:installer-known-issues[Known Issues] to check for any specific
 instructions or workarounds.
 
+[WARNING]
+====
+The installer caches playbook configuration values for 10 minutes, by default. If you change any system, network, or inventory configuration, 
+and then re-run the installer within that 10 minute period, the new values are not used, and the previous values are used instead. 
+You can delete the contents of the cache, which is defined
+by the `fact_caching_connection` value in the *_/etc/ansible/ansible.cfg_* file. An example of this file is
+shown in xref:../../scaling_performance/install_practices.adoc#scaling-performance-install-optimization[Recommended Installation Practices].  
+====
+
 [[running-the-advanced-installation-containerized]]
 === Running the Containerized Installer