mirror of https://github.com/GreptimeTeam/greptimedb.git synced 2026-01-05 21:02:58 +00:00

Files

Lei, Huang fae331d2ba feat: Move create table logic to frontend (#455 )

* refactor: dependency, from frontend depends on datanode to datanode depends on frontend

* wip: start frontend in datanode

* wip: migrate create database to frontend

* wip: impl alter table

* fix: CR comments

* feat: add table id and region ids field to CreateExpr

* chore: rebase develop

* refactor: frontend catalog should set from datanode

* feat: gRPC AddColumn request support add multi columns

* wip: move create table and create-on-insertion to frontend

* wip: error handling

* fix: some unit tests

* fix: all unit tests

* chore: merge develop

* feat: add create/alter-on-insertion to dist_insert/sql_dist_insert

* fix: add region number/catalog/schema to InsertExpr

* feat: add handle_create_table/handle_create_database...

* fix: remove catalog from insert expr

* fix: CR comments

* fix: when running in standalone mode, mysql opts and postgres opts should pass to frontend so that auctually running service can change the port to listen on

* refactor: add a standalone subcommand, move frontend start stuff to cmd package

* chore: optimize create table failure logs

* docs: change readme

* docs: update readme

2022-11-14 10:54:35 +08:00

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GreptimeDB

GreptimeDB: the next-generation hybrid timeseries/analytics processing database in the cloud.

Getting Started

Prerequisites

To compile GreptimeDB from source, you'll need the following:

Rust
Protobuf

Rust

The easiest way to install Rust is to use rustup, which will check our rust-toolchain file and install correct Rust version for you.

Protobuf

protoc is required for compiling .proto files. protobuf is available from major package manager on macos and linux distributions. You can find an installation instructions here.

Build the Docker Image

docker build --network host -f docker/Dockerfile -t greptimedb .

Usage

Start in standalone mode

// Start datanode and frontend with default options.
cargo run  -- --log-level=debug standalone start

OR

// Start with `http-addr` option.
cargo run  -- --log-level=debug standalone start --http-addr=0.0.0.0:9999

OR

// Start with `mysql-addr` option.
cargo run  -- --log-level=debug standalone start --mysql-addr=0.0.0.0:9999

OR
// Start datanode with `log-dir` and `log-level` options.
cargo run  -- --log-dir=logs --log-level=debug standalone start --mysql-addr=0.0.0.0:4102

Start with config file:

cargo run -- --log-dir=logs --log-level=debug standalone start -c ./config/standalone.example.toml

Start datanode by running docker container:

docker run -p 3000:3000 \
-p 3001:3001 \
-p 3306:3306 \
greptimedb

SQL Operations

Connecting DB by mysql client:

# The standalone instance listen on port 4002 by default.
mysql -h 127.0.0.1 -P 4002

Create a database;

CREATE DATABASE hello_greptime;

Create table:

CREATE TABLE hello_greptime.monitor (
  host STRING,
  ts TIMESTAMP,
  cpu DOUBLE DEFAULT 0,
  memory DOUBLE,
  TIME INDEX (ts),
  PRIMARY KEY(host)) ENGINE=mito WITH(regions=1);

Insert data:

INSERT INTO hello_greptime.monitor(host, cpu, memory, ts) VALUES ('host1', 66.6, 1024, 1660897955000);
INSERT INTO hello_greptime.monitor(host, cpu, memory, ts) VALUES ('host2', 77.7, 2048, 1660897956000);
INSERT INTO hello_greptime.monitor(host, cpu, memory, ts) VALUES ('host3', 88.8, 4096, 1660897957000);

Query data:

mysql> SELECT * FROM hello_greptime.monitor;
+-------+---------------------+------+--------+
| host  | ts                  | cpu  | memory |
+-------+---------------------+------+--------+
| host1 | 2022-08-19 08:32:35 | 66.6 |   1024 |
| host2 | 2022-08-19 08:32:36 | 77.7 |   2048 |
| host3 | 2022-08-19 08:32:37 | 88.8 |   4096 |
+-------+---------------------+------+--------+
3 rows in set (0.01 sec)

You can delete your data by removing /tmp/greptimedb.

Contributing

Please refer to contribution guidelines for more information.

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