The following is a list of the minimum requirements for QueryGrid Manager to serve 200 data source nodes and monitor 5000 QueryGrid queries a day. A single QueryGrid Manager can support up to 8 CPUs total. QueryGrid Manager uses a maximum of 16GB of memory.
- 2 CPU cores
- 16GB memory
- 250GB of disk space mounted on /var/opt/teradata/tdqgm
Do not store /var/opt/teradata/tdqgm on the same partition as root.
Number of QueryGrid Manager Instances
For each Data Center, determine the number of QueryGrid Managers needed. One instance of QueryGrid Manager is installed on one TMS, customer-supplied server, or VM.
Use the following guidelines. The guidelines are based on the minimum hardware requirements for the TMS, server, or VM.
|TMS, Server, or VM for QueryGrid Manager||One or more (separate server for each QueryGrid Manager instance).
Important: Do not install on existing TMS servers hosting Viewpoint, Data Mover, Ecosystem Manager, and so forth, unless those products are uninstalled and the server is re-purposed to be a QueryGrid Manager server.
|Minimum number of QueryGrid Manager instances||One instance for approximately every 200 Teradata QueryGrid-connected nodes:
|Minimum number of QueryGrid Manager instances for high availability (HA)||Two instances:
|Number of QueryGrid Manager instances to keep communication, heartbeats, query metrics, and log data local to a Data Center||At least one per Data Center, more if the number of nodes in the Data Center exceed the resource requirements of the single QueryGrid Manager instance.
Server load is displayed by Linux utilities such as uptime and top. The load average should be less than the number of CPU cores. If the load is persistently above the number of CPU cores, that is a good indication that another QueryGrid Manager is needed.