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GreptimeTeam / greptimedb

  • пятница, 18 ноября 2022 г. в 00:34:08
https://github.com/GreptimeTeam/greptimedb


GreptimeDB, an open-source, cloud-native, distributed time-series database.



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The next-generation hybrid timeseries/analytics processing database in the cloud

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What is GreptimeDB

GreptimeDB is an open-source time-series database with a special focus on scalability, analytical capabilities and efficiency. It's designed to work on infrastructure of the cloud era, and users benefit from its elasticity and commodity storage.

Our core developers have been building time-series data platform for years. Based on their best-practices, GreptimeDB is born to give you:

  • A standalone binary that scales to highly-available distributed cluster, providing a transparent experience for cluster users
  • Optimized columnar layout for handling time-series data; compacted, compressed, stored on various storage backends
  • Flexible index options, tackling high cardinality issues down
  • Distributed, parallel query execution, leveraging elastic computing resource
  • Native SQL, and Python scripting for advanced analytical scenarios
  • Widely adopted database protocols and APIs
  • Extensible table engine architecture for extensive workloads

Quick Start

Build

Build from Source

To compile GreptimeDB from source, you'll need:

  • C/C++ Toolchain: provides basic tools for compiling and linking. This is available as build-essential on ubuntu and similar name on other platforms.
  • 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 with Docker

A docker image with necessary dependencies is provided:

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

Run

Start GreptimeDB from source code, in standalone mode:

cargo run -- standalone start

Or if you built from docker:

docker run -p 4002:4002 -v "$(pwd):/tmp/greptimedb" greptime/greptimedb standalone start

For more startup options, greptimedb's distributed mode and information about Kubernetes deployment, check our docs.

Connect

  1. Connect to GreptimeDB via standard MySQL client:

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

  2. Create table:

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

  3. Insert some data:

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

  4. Query the data:

    SELECT * FROM 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 always cleanup test database by removing /tmp/greptimedb.

Resources

Installation

Documentation

SDK

Project Status

This project is in its early stage and under heavy development. We move fast and break things. Benchmark on development branch may not represent its potential performance. We release pre-built binaries constantly for functional evaluation. Do not use it in production at the moment.

Community

Our core team is thrilled too see you participate in any ways you like. When you are stuck, try to ask for help by filling an issue with a detailed description of what you were trying to do and what went wrong. If you have any questions or if you would like to get involved in our community, please check out:

In addition, you may:

License

GreptimeDB uses the Apache 2.0 license to strike a balance between open contributions and allowing you to use the software however you want.

Contributing

Please refer to contribution guidelines for more information.

Acknowledgement