The steps for upgrading Teradata QueryGrid Manager are similar to those for installing it, whereas the upgrade processes for connectors, fabrics, and node software differs from the installation process.
If upgrading a site with a full Vantage stack and analytical nodes, open an incident with the QueryGrid GSO team for consultation before upgrading.
For connectors and fabrics, the upgrade process allows you to test new versions before deploying the new versions to production. Upgrades to these components are considered configuration changes. For each configuration, three versions can co-exist:
- Active
- Pending
- Previous
This protocol provides for pushing changes to all systems before implementation, allowing you to test new connectors and fabrics on production deployments without affecting production workloads.
You can also update links, networks, and communication policies. Like connector and fabric upgrades, such updates are considered configuration changes and are subject to the same version and deployment protocol.
The upgrade process for QueryGrid node software differs from the installation process, with the final deployment steps being handled automatically by the pre-existing version of the software.
Upgrade Considerations
The following considerations apply when upgrading QueryGrid Manager from QueryGrid 2.04 and earlier to QueryGrid 2.05 and later:
- Previously collected log data and query metrics are reset.
QueryGrid metrics that display in Viewpoint are maintained and not reset.
- Query summarization and system health checks are suspended during the rolling upgrade until all Managers are upgraded to the new version. Teradata recommends performing rolling upgrades in quick succession to minimize the amount of time different versions are running simultaneously, while still making sure each instance is upgraded successfully and comes online before starting the next upgrade.
- Wait to perform diagnostic checks and node install operations until after the rolling upgrade completes to avoid timeouts or failure.
The following considerations apply when upgrading QueryGrid connectors from QueryGrid 2.04 and earlier to QueryGrid 2.05 and later:
| Connector Type | Description |
|---|---|
| Teradata |
|
| Presto |
|
| Hive |
|
| Spark | No installation steps required when upgrading from QueryGrid 02.04. |
| Oracle | No installation steps required. |
| BigQuery | No installation steps required. |