关于图数据库的两个比较好的开源项目，nebula-graph 和 dgraph ，一个是C++写的，一个是golang写的

淩亂°似流年 2022-12-30 03:42 76阅读 0赞

### 目录 ###

*  前言
 *  1，关于图数据库
 *  2，关于nebula-graph
 *  3，docker-compose启动
 *  4，总结

# 前言 #

--------------------

本文的原文连接是:  
[https://blog.csdn.net/freewebsys/article/details/111599765][https_blog.csdn.net_freewebsys_article_details_111599765]

未经博主允许不得转载。  
博主地址是：[http://blog.csdn.net/freewebsys][http_blog.csdn.net_freewebsys]

# 1，关于图数据库 #

--------------------

使用的文章：  
参考文章：  
[https://my.oschina.net/u/4169309/blog/4833649][https_my.oschina.net_u_4169309_blog_4833649]

研究了下这两个图数据库。

# 2，关于nebula-graph #

--------------------

官网地址：  
[https://nebula-graph.com.cn/][https_nebula-graph.com.cn]

是一个中国的企业开源的。apache 2.0 协议。  
github地址：  
[https://github.com/vesoft-inc/nebula][https_github.com_vesoft-inc_nebula]

docker hub地址：  
[https://hub.docker.com/r/vesoft/nebula-graphd][https_hub.docker.com_r_vesoft_nebula-graphd]

nebula图数据库文档相当的丰富，同时还支持类似于mysql的命令行。  
可以各种操作。

[https://docs.nebula-graph.com.cn/manual-CN/1.overview/2.quick-start/1.get-started/][https_docs.nebula-graph.com.cn_manual-CN_1.overview_2.quick-start_1.get-started]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZyZWV3ZWJzeXM_size_16_color_FFFFFF_t_70]  
Nebula Graph 使用  
[https://space.bilibili.com/472621355/channel/detail?cid=86880][https_space.bilibili.com_472621355_channel_detail_cid_86880]

docker pull vesoft/nebula-graphd:latest
    
    docker images | grep nebula
    vesoft/nebula-graphd       latest              729508bff4bd        3 months ago        282MB
    
    docker run -itd  -p 3699:3699 --name nebula vesoft/nebula-graphd:latest
    docker run -it vesoft/nebula-console:v1.2.0 -addr xx.xx.0.1 -port 3699 -u root -p root
    
    (root@nebula) [(none)]> SHOW HOSTS;
    [ERROR (-8)]: RPC failure in MetaClient: N6apache6thrift9transport19TTransportExceptionE: AsyncSocketException: connect failed, type = Socket not open, errno = 111 (Connection refused): Connection refused
    Thu Dec 24 14:42:29 2020
    
    (root@nebula) [(none)]> CREATE SPACE nba (partition_num=1, replica_factor=1);
    [ERROR (-8)]: Create space `nba' failed: RPC failure in MetaClient: N6apache6thrift9transport19TTransportExceptionE: AsyncSocketException: connect failed, type = Socket not open, errno = 111 (Connection refused): Connection refused.
    Thu Dec 24 14:43:03 2020

本地端口是3699，需要使用docker-compose 启动集群服务才可以。  
但是可以用console连接到nebula上面了。

[https://docs.nebula-graph.com.cn/manual-CN/1.overview/2.quick-start/1.get-started/][https_docs.nebula-graph.com.cn_manual-CN_1.overview_2.quick-start_1.get-started]

# 3，docker-compose启动 #

--------------------

代码：  
[https://github.com/vesoft-inc/nebula-docker-compose][https_github.com_vesoft-inc_nebula-docker-compose]

启动之后就可以使用 console 的命令行了：

ip查看：

docker inspect nebula-docker-compose_graphd0_1 | grep IPAddress

docker run -it vesoft/nebula-console:v1.2.0 -addr xxx.xxx.xx.xx -port 3699 -u root -p root

xxx.xxx.xx.xx 是宿主机IP才可以。

使用命令行执行：

SHOW HOSTS;
    =============================================================================================
    | Ip         | Port  | Status | Leader count | Leader distribution | Partition distribution |
    =============================================================================================
    | 172.28.2.1 | 44500 | online | 0            | No valid partition  | No valid partition     |
    ---------------------------------------------------------------------------------------------
    | 172.28.2.2 | 44500 | online | 0            | No valid partition  | No valid partition     |
    ---------------------------------------------------------------------------------------------
    | 172.28.2.3 | 44500 | online | 0            | No valid partition  | No valid partition     |
    ---------------------------------------------------------------------------------------------
    | Total      |       |        | 0            |                     |                        |
    ---------------------------------------------------------------------------------------------
    Got 4 rows (Time spent: 21.894/27.132 ms)
    
    Thu Dec 24 14:56:38 2020
    
    (root@nebula) [(none)]> CREATE SPACE nba (partition_num=1, replica_factor=1);
    Execution succeeded (Time spent: 23.469/26.797 ms)
    
    Thu Dec 24 14:57:04 2020
    
    (root@nebula) [(none)]> SHOW HOSTS;
    =============================================================================================
    | Ip         | Port  | Status | Leader count | Leader distribution | Partition distribution |
    =============================================================================================
    | 172.28.2.1 | 44500 | online | 0            | No valid partition  | No valid partition     |
    ---------------------------------------------------------------------------------------------
    | 172.28.2.2 | 44500 | online | 0            |                     | nba: 1                 |
    ---------------------------------------------------------------------------------------------
    | 172.28.2.3 | 44500 | online | 0            | No valid partition  | No valid partition     |
    ---------------------------------------------------------------------------------------------
    | Total      |       |        | 0            |                     | nba: 1                 |
    ---------------------------------------------------------------------------------------------
    Got 4 rows (Time spent: 1.658/4.974 ms)
    
    Thu Dec 24 14:57:12 2020
    
    (root@nebula) [(none)]> USE nba;
    Execution succeeded (Time spent: 11.215/14.906 ms)
    
    Thu Dec 24 14:57:23 2020
    
    (root@nebula) [nba]> SHOW SPACES;
    ========
    | Name |
    ========
    | nba  |
    --------
    Got 1 rows (Time spent: 1.525/7.606 ms)
    
    Thu Dec 24 14:57:30 2020
    
    (root@nebula) [nba]> CREATE TAG player(name string, age int);
    Execution succeeded (Time spent: 26.199/30.046 ms)
    
    Thu Dec 24 14:57:43 2020
    
    (root@nebula) [nba]> CREATE TAG team(name string);
    Execution succeeded (Time spent: 24.661/28.844 ms)
    
    Thu Dec 24 14:57:50 2020
    
    (root@nebula) [nba]> SHOW TAGS;
    ===============
    | ID | Name   |
    ===============
    | 2  | player |
    ---------------
    | 3  | team   |
    ---------------
    Got 2 rows (Time spent: 1.074/4.102 ms)
    
    Thu Dec 24 14:58:00 2020
    
    (root@nebula) [nba]> SHOW EDGES;
    Empty set (Time spent: 1.336/4.656 ms)
    
    Thu Dec 24 14:58:08 2020
    
    (root@nebula) [nba]> DESCRIBE TAG player;
    ==================
    | Field | Type   |
    ==================
    | name  | string |
    ------------------
    | age   | int    |
    ------------------
    Got 2 rows (Time spent: 5.171/9.324 ms)
    
    Thu Dec 24 14:58:19 2020
    
    (root@nebula) [nba]> INSERT VERTEX player(name, age) VALUES 100:("Tim Duncan", 42);
    Execution succeeded (Time spent: 12.409/16.585 ms)
    
    Thu Dec 24 14:58:35 2020
    
    (root@nebula) [nba]> INSERT VERTEX player(name, age) VALUES 101:("Tony Parker", 36);
    Execution succeeded (Time spent: 4.928/7.612 ms)
    
    Thu Dec 24 14:58:41 2020
    
    (root@nebula) [nba]> INSERT VERTEX player(name, age) VALUES 100:("Tim Duncan", 42), \
                      ->         101:("Tony Parker", 36), 102:("LaMarcus Aldridge", 33);
    Execution succeeded (Time spent: 3.451/7.338 ms)
    
    Thu Dec 24 14:59:04 2020
    
    (root@nebula) [nba]> FETCH PROP ON player 100;
    =======================================
    | VertexID | player.name | player.age |
    =======================================
    | 100      | Tim Duncan  | 42         |
    ---------------------------------------
    Got 1 rows (Time spent: 5.038/7.898 ms)
    
    Thu Dec 24 14:59:15 2020

# 4，总结 #

--------------------

在使用上面nebula还是非常给力的，经过了很多公司的实际测试。  
同时在本地跑起来需要使用docker-compose。启动之后直接使用。  
同时配合使用console 可以很方便使用 查询语句，和 mysql 命令行比较像呢。要是能执行 jdbc 也不错呢。

本文的原文连接是:  
[https://blog.csdn.net/freewebsys/article/details/111599765][https_blog.csdn.net_freewebsys_article_details_111599765]

博主地址是：[https://blog.csdn.net/freewebsys][https_blog.csdn.net_freewebsys]  
![format_png][]

[https_blog.csdn.net_freewebsys_article_details_111599765]: https://blog.csdn.net/freewebsys/article/details/111599765
[http_blog.csdn.net_freewebsys]: http://blog.csdn.net/freewebsys
[https_my.oschina.net_u_4169309_blog_4833649]: https://my.oschina.net/u/4169309/blog/4833649
[https_nebula-graph.com.cn]: https://nebula-graph.com.cn/
[https_github.com_vesoft-inc_nebula]: https://github.com/vesoft-inc/nebula
[https_hub.docker.com_r_vesoft_nebula-graphd]: https://hub.docker.com/r/vesoft/nebula-graphd
[https_docs.nebula-graph.com.cn_manual-CN_1.overview_2.quick-start_1.get-started]: https://docs.nebula-graph.com.cn/manual-CN/1.overview/2.quick-start/1.get-started/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZyZWV3ZWJzeXM_size_16_color_FFFFFF_t_70]: /images/20221120/b4177711f92548ba9f34bd7c3f401e01.png
[https_space.bilibili.com_472621355_channel_detail_cid_86880]: https://space.bilibili.com/472621355/channel/detail?cid=86880
[https_github.com_vesoft-inc_nebula-docker-compose]: https://github.com/vesoft-inc/nebula-docker-compose
[https_blog.csdn.net_freewebsys]: https://blog.csdn.net/freewebsys
[format_png]: https://imgconvert.csdnimg.cn/aHR0cDovL2ltZy5ibG9nLmNzZG4ubmV0LzIwMTgwMTE2MTM1NjA0NTA5?x-oss-process=image/format,png