EDB Postgres Distributed Command Line Interface (PGD CLI)#
The EDB Postgres Distributed Command Line Interface (PGD CLI) is a tool for managing your EDB Postgres Distributed cluster. It’s the key tool for inspecting and managing cluster resources.
It allows you to run commands against EDB Postgres Distributed clusters to:
Determine the health of the cluster, inspect the cluster’s configuration, and manage the cluster’s resources.
Inspect and manage the cluster’s nodes and groups.
Perform a write-leader change operation on the group.
You can also install it manually on Linux and macOS systems that can connect to a PGD cluster, including:
HCP advanced and distributed high-availability clusters.
PGD clusters deployed using the CloudNative Postgres Global Clusters operator.
Manually deployed PGD clusters.
PGD Essential constraints#
PGD Essential clusters have constraints that apply to certain CLI commands:
Cluster architecture: A PGD Essential cluster must have at most three data nodes and must have routing enabled for the global group only. Use
pgd cluster verify --archto check compliance.Compatibility assessment: The
pgd assesscommand skips checks for tables with multiple unique indexes, row level lock usage, lock table usage, and listen/notify usage.Commit scope commands:
pgd commit-scope create,pgd commit-scope update, andpgd commit-scope dropare not supported.Group options:
pgd group set-optioncannot updateenable_raft,enable_routing,enable_wal_decoder, orstreaming_mode.Node setup:
pgd node setupenables routing for theglobalgroup and disables it for subgroups.