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Prerequisites Required Prior to Server Resiliency Actions on the BDA (Doc ID 2240618.1)

Last updated on AUGUST 31, 2023

Applies to:

Big Data Appliance Integrated Software - Version 4.0 and later
Linux x86-64


This note provides a list of prerequisites to perform prior to any server resiliency actions. Not all may be possible to implement at all times, but the list should be followed as best as possible.

Server resiliency actions are: node migration, node reprovision, node decommission, node recommission.


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In this Document
 Prerequisites for Clusters with Custom Certificates
 Prerequisistes for BDA 5.2
 Prerequisites for Backups
 Prerequisites for the Base Image
 Prerequisites for MySQL
 Prerequisites for Clusters where the OS was Migrated from OL6 to OL7 
 Prerequisites for Health Checks
 Prerequisites for umask
 Prerequisites for Very Large BDA Clusters
 Prerequisites for Login Banners and motd
 Prerequisites for MACs and Ciphers Values in ssh_config
 Prerequisites for Roles that Need Special Consideration
 Prerequisites to Avoid Problems with the NameNodes
 Prerequisites for Passwords
 Prerequisites for the Balancer
 Prerequisites for the bda Repository 
 Prerequisites for Proxies
 Prerequisites for CM API Language 
 Prerequisites for the Network Files and Conf files
 Prerequisites for non-BDA Nodes 
 Prerequisites for the httpd Service
 Prerequisites for CM Properties
 Prerequisites for Testing Node Migration
 Prerequisites for Older BDA Versions 4.0-4.5
 Final Prerequisite

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