PD Microservice Deployment Topology

This document describes the deployment topology of PD microservices based on the minimal TiDB topology.

Topology information

InstanceCountPhysical machine configurationIPConfiguration
TiDB216 VCore 32GB * 110.0.1.1
10.0.1.2
Default port
Global directory configuration
PD34 VCore 8GB * 110.0.1.3
10.0.1.4
10.0.1.5
Default port
Global directory configuration
TSO24 VCore 8GB * 110.0.1.6
10.0.1.7
Default port
Global directory configuration
Scheduling24 VCore 8GB * 110.0.1.8
10.0.1.9
Default port
Global directory configuration
TiKV316 VCore 32GB 2TB (nvme ssd) * 110.0.1.10
10.0.1.11
10.0.1.12
Default port
Global directory configuration
Monitoring & Grafana14 VCore 8GB * 1 500GB (ssd)10.0.1.13Default port
Global directory configuration

Topology template

Simple template for the PD microservice topology
# # Global variables are applied to all deployments and used as the default value of # # the deployments if a specific deployment value is missing. global: user: "tidb" ssh_port: 22 deploy_dir: "/tidb-deploy" data_dir: "/tidb-data" listen_host: 0.0.0.0 arch: "amd64" pd_mode: "ms" # To enable PD microservices, you must specify this field as "ms". monitored: node_exporter_port: 9200 blackbox_exporter_port: 9215 # # Specifies the configuration of PD servers. pd_servers: - host: 10.0.1.3 - host: 10.0.1.4 - host: 10.0.1.5 # # Specifies the configuration of TiDB servers. tidb_servers: - host: 10.0.1.1 - host: 10.0.1.2 # # Specifies the configuration of TiKV servers. tikv_servers: - host: 10.0.1.10 - host: 10.0.1.11 - host: 10.0.1.12 # # Specifies the configuration of TSO servers. tso_servers: - host: 10.0.1.6 - host: 10.0.1.7 # # Specifies the configuration of Scheduling servers. scheduling_servers: - host: 10.0.1.8 - host: 10.0.1.9 # # Specifies the configuration of Prometheus servers. monitoring_servers: - host: 10.0.1.13 # # Specifies the configuration of Grafana servers. grafana_servers: - host: 10.0.1.13

For detailed descriptions of the configuration items in the preceding TiDB cluster topology file, see Topology configuration file for deploying TiDB using TiUP.

Key parameters

  • The instance-level host configuration in tso_servers only supports IP address, not domain name.
  • For detailed descriptions of TSO configuration items, see TSO configuration file.
  • The instance-level host configuration in scheduling_servers only supports IP address, not domain name.
  • For detailed descriptions of Scheduling configuration items, see Scheduling configuration file.

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