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描述文字

tikv/pd: Placement driver for TiKV

原作者: [db:作者] 来自: 网络 收藏 邀请

开源软件名称（OpenSource Name）：

tikv/pd

开源软件地址(OpenSource Url)：

https://github.com/tikv/pd

开源编程语言(OpenSource Language)：

Go 99.3%

开源软件介绍(OpenSource Introduction)：

PD

Check Status Build & Test Status TSO Consistency Test Status GitHub release Go Report Card codecov

PD is the abbreviation for Placement Driver. It is used to manage and schedule the TiKV cluster.

PD supports distribution and fault-tolerance by embedding etcd.

contribution-map

If you're interested in contributing to PD, see CONTRIBUTING.md. For more contributing information, please click on the contributor icon above.

Build

  1. Make sure ​Go​ (version 1.16) is installed.
  2. Use make to install PD. PD is installed in the bin directory.

Usage

Command flags

See PD Configuration Flags.

Single Node with default ports

You can run pd-server directly on your local machine, if you want to connect to PD from outside, you can let PD listen on the host IP.

# Set correct HostIP here.
export HostIP="192.168.199.105"

pd-server --name="pd" \
          --data-dir="pd" \
          --client-urls="http://${HostIP}:2379" \
          --peer-urls="http://${HostIP}:2380" \
          --log-file=pd.log

Using curl to see PD member:

curl http://${HostIP}:2379/pd/api/v1/members

{
    "members": [
        {
            "name":"pd",
            "member_id":"f62e88a6e81c149",
            "peer_urls": [
                "http://192.168.199.105:2380"
            ],
            "client_urls": [
                "http://192.168.199.105:2379"
            ]
        }
    ]
}

A better tool httpie is recommended:

http http://${HostIP}:2379/pd/api/v1/members
Access-Control-Allow-Headers: accept, content-type, authorization
Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, DELETE
Access-Control-Allow-Origin: *
Content-Length: 673
Content-Type: application/json; charset=UTF-8
Date: Thu, 20 Feb 2020 09:49:42 GMT

{
    "members": [
        {
            "client_urls": [
                "http://192.168.199.105:2379"
            ],
            "member_id": "f62e88a6e81c149",
            "name": "pd",
            "peer_urls": [
                "http://192.168.199.105:2380"
            ]
        }
    ]
}

Docker

You can use the following command to build a PD image directly:

docker build -t tikv/pd .

Or you can also use following command to get PD from Docker hub:

docker pull pingcap/pd

Run a single node with Docker:

# Set correct HostIP here.
export HostIP="192.168.199.105"

docker run -d -p 2379:2379 -p 2380:2380 --name pd tikv/pd \
          --name="pd" \
          --data-dir="pd" \
          --client-urls="http://0.0.0.0:2379" \
          --advertise-client-urls="http://${HostIP}:2379" \
          --peer-urls="http://0.0.0.0:2380" \
          --advertise-peer-urls="http://${HostIP}:2380" \
          --log-file=pd.log

Cluster

As a component of TiKV project, PD needs to run with TiKV to work. The cluster can also include TiDB to provide SQL services. You can refer Deploy a TiDB Cluster Using TiUP or TiDB in Kubernetes Documentation for detailed instructions to deploy a cluster.

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