Datanode
Subcommand options
You can list all the options from the following command:
greptime datanode start --help
| Option | Description |
|---|---|
-c/--config-file | The configuration file for datanode |
--data-home | Database storage root directory |
--env-prefix <ENV_PREFIX> | The prefix of environment variables, default is GREPTIMEDB_DATANODE |
--http-addr <HTTP_ADDR> | HTTP server address |
--http-timeout <HTTP_TIMEOUT> | HTTP request timeout in seconds |
--metasrv-addrs <METASRV_ADDR> | Metasrv address list |
--node-id <NODE_ID> | The datanode ID |
--rpc-bind-addr <RPC_BIND_ADDR> | The address to bind the gRPC server |
--rpc-server-addr <RPC_SERVER_ADDR> | The address advertised to the metasrv, and used for connections from outside the host. If left empty or unset, the server will automatically use the IP address of the first network interface on the host, with the same port number as the one specified in rpc_bind_addr |
--wal-dir <WAL_DIR> | The directory of WAL |
All the addr options are in the form of ip:port.
Examples
Start service with configurations
Starts a datanode instance with customized configurations:
greptime datanode start -c config/datanode.example.toml
Starts a datanode instance with command line arguments specifying the gRPC service address, the MySQL service address, the address of the metasrv, and the node id of the instance:
greptime datanode start --rpc-bind-addr=0.0.0.0:4001 --mysql-addr=0.0.0.0:4002 --metasrv-addrs=0.0.0.0:3002 --node-id=1
The datanode.example.toml configuration file comes from the config directory of the [GreptimeDB](https://github.com/GreptimeTeam/greptimedb/) repository. You can find more example configuration files there. The -c option specifies the configuration file, for more information check Configuration.