PD Microservice Deployment Topology
This document describes the deployment topology of PD microservices based on the minimal TiDB topology.
Topology information
| Instance | Count | Physical machine configuration | IP | Configuration |
|---|---|---|---|---|
| TiDB | 2 | 16 VCore 32GB * 1 | 10.0.1.1 10.0.1.2 | Default port Global directory configuration |
| PD | 3 | 4 VCore 8GB * 1 | 10.0.1.3 10.0.1.4 10.0.1.5 | Default port Global directory configuration |
| TSO | 2 | 4 VCore 8GB * 1 | 10.0.1.6 10.0.1.7 | Default port Global directory configuration |
| Scheduling | 2 | 4 VCore 8GB * 1 | 10.0.1.8 10.0.1.9 | Default port Global directory configuration |
| TiKV | 3 | 16 VCore 32GB 2TB (nvme ssd) * 1 | 10.0.1.10 10.0.1.11 10.0.1.12 | Default port Global directory configuration |
| Monitoring & Grafana | 1 | 4 VCore 8GB * 1 500GB (ssd) | 10.0.1.13 | Default 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
hostconfiguration intso_serversonly supports IP address, not domain name. - For detailed descriptions of TSO configuration items, see TSO configuration file.
- The instance-level
hostconfiguration inscheduling_serversonly supports IP address, not domain name. - For detailed descriptions of Scheduling configuration items, see Scheduling configuration file.