Scheduling Configuration Flags

The Scheduling node is used for providing the scheduling microservice for PD. You can configure it using command-line flags or environment variables.

--advertise-listen-addr

• The URL for the client to access the Scheduling node.
• Default: ${listen-addr}
• In some situations such as in Docker or NAT network environments, if a client cannot access the Scheduling node through the default client URLs listened to by scheduling, you must manually set --advertise-listen-addr for client access.
• For example, the internal IP address of Docker is 172.17.0.1, while the IP address of the host is 192.168.100.113 and the port mapping is set to -p 3379:3379. In this case, you can set --advertise-listen-addr="http://192.168.100.113:3379". Then, the client can find this service through http://192.168.100.113:3379.

--backend-endpoints

• The list of backend endpoints of other Scheduling nodes that the current Scheduling node listens to.
• Default: http://127.0.0.1:2379

--cacert

• The file path of CA, used to enable TLS.
• Default: ""

--cert

• The path of the PEM file including the X.509 certificate, used to enable TLS.
• Default: ""

--config

• The configuration file.
• Default: ""
• If you specify a configuration file, the Scheduling node first reads configurations from that file. If the same configurations are also specified via command line flags, the Scheduling node uses the command line flag configurations to overwrite those in the configuration file.

--data-dir

• The path to the data directory on the Scheduling node.
• Default: "default.${name}"

--key

• The path of the PEM file including the X.509 key, used to enable TLS.
• Default: ""

--listen-addr

• The client URL that the current Scheduling node listens to.
• Default: "http://127.0.0.1:3379"
• When deploying a cluster, you must specify the IP address of the current host as --listen-addr (for example, "http://192.168.100.113:3379"). If the node runs on Docker, specify the Docker IP address as "http://0.0.0.0:3379".

--log-file

• The log file.
• Default: ""
• If this flag is not set, logs are output to "stderr". If this flag is set, logs are output to the corresponding file.

--name New in v8.3.0

• The name of the current Scheduling node.
• Default: "scheduling-${hostname}"
• If you need to start multiple Scheduling nodes, it is recommended to configure different names for different nodes for easier identification.

-L

• The log level.
• Default: "info"
• Optional values: "debug", "info", "warn", "error", "fatal"

-V, --version

• Output the version information and exit.