Elasticity Issues - Teradata® VantageCloud Enterprise on Azure

VantageCloud Enterprise on Azure (DIY) Installation and Administration Guide - 2.4

Product
Teradata® VantageCloud Enterprise on Azure
Release Number
2.4
Published
April 2024
ft:locale
en-US
ft:lastEdition
2024-04-29
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eqk1475705518038
Product Category
Cloud

Scale Out Issues

Scaling out from 4 to 5, 6 or 7 does not work When AMPS per subpool value is 5. If performed, the system will be rolled back to previous stable state.

Workaround

If you need to scale out to 5 nodes when AMPS per subpool value is 5, follow the steps to upgrade tdc-azure-all rpm:

  1. Download the tdc upgrade bundle from artifactory: https://tsd.teradata.com/patch/download/94073
  2. Untar the bundle and extract only tdc-azure-all-11.0.6-11.00.06.0r999.noarch.rpm
  3. If vconfig.original is not already present under /etc/opt/teradata/tdconfig/, then take the backup of vconfig.txt as vconfig.original file.
    • cp /etc/opt/teradata/tdconfig/vconfig.txt /etc/opt/teradata/tdconfig/vconfig.original
    • pcl -send /etc/opt/teradata/tdconfig/vconfig.original /etc/opt/teradata/tdconfig/
  4. Download latest rpm to all Database nodes, under /home/azureuser/ directory
  5. Validate the current rpm version installed on the site using rpm -qa|grep tdc-azure-all
  6. Install the rpm: pcl -s rpm --force -Uvh /home/azureuser/tdc-azure-all-11.0.6-11.00.06.0r999.noarch.rpm
  7. Check for the updated version: pcl -s rpm -qa|grep tdc-azure-all
  8. Run the command tdc-feature-init
  9. Run the command to Update HSN Nodes, only if HSNs are available tdc-hot-standby update.