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管理 NebulaGraph 服务

NebulaGraph 支持通过脚本管理服务。

使用脚本管理服务

使用脚本nebula.service管理服务,包括启动、停止、重启、中止和查看。

Note

nebula.service的默认路径是/usr/local/nebula/scripts,如果修改过安装路径,请使用实际路径。

语法

$ sudo /usr/local/nebula/scripts/nebula.service
[-v] [-c <config_file_path>]
<start | stop | restart | kill | status>
<metad | graphd | storaged | all>
参数 说明
-v 显示详细调试信息。
-c 指定配置文件路径,默认路径为/usr/local/nebula/etc/
start 启动服务。
stop 停止服务。
restart 重启服务。
kill 中止服务。
status 查看服务状态。
metad 管理 Meta 服务。
graphd 管理 Graph 服务。
storaged 管理 Storage 服务。
all 管理所有服务。

启动 NebulaGraph 服务

非容器部署

对于非容器部署的 NebulaGraph,执行如下命令启动服务:

$ sudo /usr/local/nebula/scripts/nebula.service start all
[INFO] Starting nebula-metad...
[INFO] Done
[INFO] Starting nebula-graphd...
[INFO] Done
[INFO] Starting nebula-storaged...
[INFO] Done

容器部署

对于使用 Docker Compose 部署的 NebulaGraph,在nebula-docker-compose/目录内执行如下命令启动服务:

[nebula-docker-compose]$ docker-compose up -d
Building with native build. Learn about native build in Compose here: https://docs.docker.com/go/compose-native-build/
Creating network "nebula-docker-compose_nebula-net" with the default driver
Creating nebula-docker-compose_metad0_1 ... done
Creating nebula-docker-compose_metad2_1 ... done
Creating nebula-docker-compose_metad1_1 ... done
Creating nebula-docker-compose_storaged2_1 ... done
Creating nebula-docker-compose_graphd1_1   ... done
Creating nebula-docker-compose_storaged1_1 ... done
Creating nebula-docker-compose_storaged0_1 ... done
Creating nebula-docker-compose_graphd2_1   ... done
Creating nebula-docker-compose_graphd_1    ... done

停止 NebulaGraph 服务

Danger

请勿使用kill -9 命令强制终止进程,否则可能较小概率出现数据丢失。

非容器部署

执行如下命令停止 NebulaGraph 服务:

$ sudo /usr/local/nebula/scripts/nebula.service stop all
[INFO] Stopping nebula-metad...
[INFO] Done
[INFO] Stopping nebula-graphd...
[INFO] Done
[INFO] Stopping nebula-storaged...
[INFO] Done

容器部署

nebula-docker-compose/目录内执行如下命令停止 NebulaGraph 服务:

[nebula-docker-compose]$ docker-compose down
Stopping nebula-docker-compose_graphd_1    ... done
Stopping nebula-docker-compose_graphd2_1   ... done
Stopping nebula-docker-compose_storaged0_1 ... done
Stopping nebula-docker-compose_storaged1_1 ... done
Stopping nebula-docker-compose_graphd1_1   ... done
Stopping nebula-docker-compose_storaged2_1 ... done
Stopping nebula-docker-compose_metad1_1    ... done
Stopping nebula-docker-compose_metad2_1    ... done
Stopping nebula-docker-compose_metad0_1    ... done
Removing nebula-docker-compose_graphd_1    ... done
Removing nebula-docker-compose_graphd2_1   ... done
Removing nebula-docker-compose_storaged0_1 ... done
Removing nebula-docker-compose_storaged1_1 ... done
Removing nebula-docker-compose_graphd1_1   ... done
Removing nebula-docker-compose_storaged2_1 ... done
Removing nebula-docker-compose_metad1_1    ... done
Removing nebula-docker-compose_metad2_1    ... done
Removing nebula-docker-compose_metad0_1    ... done
Removing network nebula-docker-compose_nebula-net

Note

命令docker-compose down -v将会删除所有本地 NebulaGraph 的数据。如果使用的是 developing 或 nightly 版本,并且有一些兼容性问题,请尝试这个命令。

查看 NebulaGraph 服务

非容器部署

执行如下命令查看 NebulaGraph 服务状态:

$ sudo /usr/local/nebula/scripts/nebula.service status all
  • 如果返回如下结果,表示 NebulaGraph 服务正常运行。

    [INFO] nebula-metad(33fd35e): Running as 29020, Listening on 9559
    [INFO] nebula-graphd(33fd35e): Running as 29095, Listening on 9669
    [WARN] nebula-storaged after v3.0.0 will not start service until it is added to cluster.
    [WARN] See Manage Storage hosts:ADD HOSTS in https://docs.nebula-graph.io/
    [INFO] nebula-storaged(33fd35e): Running as 29147, Listening on 9779
    

    Note

    正常启动 NebulaGraph 后,nebula-storaged进程的端口显示红色。这是因为nebula-storaged在启动流程中会等待nebula-metad添加当前 Storage 服务,当前 Storage 服务收到 Ready 信号后才会正式启动服务。从 3.0.0 版本开始,在配置文件中添加的 Storage 节点无法直接读写,配置文件的作用仅仅是将 Storage 节点注册至 Meta 服务中。必须使用ADD HOSTS命令后,才能正常读写 Storage 节点。更多信息,参见管理 Storage 主机

  • 如果返回类似如下结果,表示 NebulaGraph 服务异常,可以根据异常服务信息进一步排查,或者在 NebulaGraph 社区寻求帮助。
    [INFO] nebula-metad: Running as 25600, Listening on 9559
    [INFO] nebula-graphd: Exited
    [INFO] nebula-storaged: Running as 25646, Listening on 9779
    

NebulaGraph 服务由 Meta 服务、Graph 服务和 Storage 服务共同提供,这三种服务的配置文件都保存在安装目录的etc目录内,默认路径为/usr/local/nebula/etc/,用户可以检查相应的配置文件排查问题。

容器部署

nebula-docker-compose目录内执行如下命令查看 NebulaGraph 服务状态:

[nebula-docker-compose]$ docker-compose ps
            Name                             Command                  State                                             Ports
---------------------------------------------------------------------------------------------------------------------------------------------------------------------
nebula-docker-compose_graphd1_1     /usr/local/nebula/bin/nebu ...   Up (healthy)   0.0.0.0:49223->19669/tcp, 0.0.0.0:49222->19670/tcp, 0.0.0.0:49224->9669/tcp
nebula-docker-compose_graphd2_1     /usr/local/nebula/bin/nebu ...   Up (healthy)   0.0.0.0:49229->19669/tcp, 0.0.0.0:49228->19670/tcp, 0.0.0.0:49230->9669/tcp
nebula-docker-compose_graphd_1      /usr/local/nebula/bin/nebu ...   Up (healthy)   0.0.0.0:49221->19669/tcp, 0.0.0.0:49220->19670/tcp, 0.0.0.0:9669->9669/tcp
nebula-docker-compose_metad0_1      ./bin/nebula-metad --flagf ...   Up (healthy)   0.0.0.0:49212->19559/tcp, 0.0.0.0:49211->19560/tcp, 0.0.0.0:49213->9559/tcp,
                                                                                    9560/tcp
nebula-docker-compose_metad1_1      ./bin/nebula-metad --flagf ...   Up (healthy)   0.0.0.0:49209->19559/tcp, 0.0.0.0:49208->19560/tcp, 0.0.0.0:49210->9559/tcp,
                                                                                    9560/tcp
nebula-docker-compose_metad2_1      ./bin/nebula-metad --flagf ...   Up (healthy)   0.0.0.0:49206->19559/tcp, 0.0.0.0:49205->19560/tcp, 0.0.0.0:49207->9559/tcp,
                                                                                    9560/tcp
nebula-docker-compose_storaged0_1   ./bin/nebula-storaged --fl ...   Up (healthy)   0.0.0.0:49218->19779/tcp, 0.0.0.0:49217->19780/tcp, 9777/tcp, 9778/tcp,
                                                                                    0.0.0.0:49219->9779/tcp, 9780/tcp
nebula-docker-compose_storaged1_1   ./bin/nebula-storaged --fl ...   Up (healthy)   0.0.0.0:49215->19779/tcp, 0.0.0.0:49214->19780/tcp, 9777/tcp, 9778/tcp,
                                                                                     0.0.0.0:49216->9779/tcp, 9780/tcp
nebula-docker-compose_storaged2_1   ./bin/nebula-storaged --fl ...   Up (healthy)   0.0.0.0:49226->19779/tcp, 0.0.0.0:49225->19780/tcp, 9777/tcp, 9778/tcp,
                                                                                    0.0.0.0:49227->9779/tcp, 9780/tcp

如果服务有异常,用户可以先确认异常的容器名称(例如nebula-docker-compose_graphd2_1),

然后执行docker ps查看对应的CONTAINER ID(示例为2a6c56c405f5)。

[nebula-docker-compose]$ docker ps
CONTAINER ID   IMAGE                               COMMAND                  CREATED          STATUS                    PORTS                                                                                                  NAMES
2a6c56c405f5   vesoft/nebula-graphd:nightly     "/usr/local/nebula/b…"   36 minutes ago   Up 36 minutes (healthy)   0.0.0.0:49230->9669/tcp, 0.0.0.0:49229->19669/tcp, 0.0.0.0:49228->19670/tcp                            nebula-docker-compose_graphd2_1
7042e0a8e83d   vesoft/nebula-storaged:nightly   "./bin/nebula-storag…"   36 minutes ago   Up 36 minutes (healthy)   9777-9778/tcp, 9780/tcp, 0.0.0.0:49227->9779/tcp, 0.0.0.0:49226->19779/tcp, 0.0.0.0:49225->19780/tcp   nebula-docker-compose_storaged2_1
18e3ea63ad65   vesoft/nebula-storaged:nightly   "./bin/nebula-storag…"   36 minutes ago   Up 36 minutes (healthy)   9777-9778/tcp, 9780/tcp, 0.0.0.0:49219->9779/tcp, 0.0.0.0:49218->19779/tcp, 0.0.0.0:49217->19780/tcp   nebula-docker-compose_storaged0_1
4dcabfe8677a   vesoft/nebula-graphd:nightly     "/usr/local/nebula/b…"   36 minutes ago   Up 36 minutes (healthy)   0.0.0.0:49224->9669/tcp, 0.0.0.0:49223->19669/tcp, 0.0.0.0:49222->19670/tcp                            nebula-docker-compose_graphd1_1
a74054c6ae25   vesoft/nebula-graphd:nightly     "/usr/local/nebula/b…"   36 minutes ago   Up 36 minutes (healthy)   0.0.0.0:9669->9669/tcp, 0.0.0.0:49221->19669/tcp, 0.0.0.0:49220->19670/tcp                             nebula-docker-compose_graphd_1
880025a3858c   vesoft/nebula-storaged:nightly   "./bin/nebula-storag…"   36 minutes ago   Up 36 minutes (healthy)   9777-9778/tcp, 9780/tcp, 0.0.0.0:49216->9779/tcp, 0.0.0.0:49215->19779/tcp, 0.0.0.0:49214->19780/tcp   nebula-docker-compose_storaged1_1
45736a32a23a   vesoft/nebula-metad:nightly      "./bin/nebula-metad …"   36 minutes ago   Up 36 minutes (healthy)   9560/tcp, 0.0.0.0:49213->9559/tcp, 0.0.0.0:49212->19559/tcp, 0.0.0.0:49211->19560/tcp                  nebula-docker-compose_metad0_1
3b2c90eb073e   vesoft/nebula-metad:nightly      "./bin/nebula-metad …"   36 minutes ago   Up 36 minutes (healthy)   9560/tcp, 0.0.0.0:49207->9559/tcp, 0.0.0.0:49206->19559/tcp, 0.0.0.0:49205->19560/tcp                  nebula-docker-compose_metad2_1
7bb31b7a5b3f   vesoft/nebula-metad:nightly      "./bin/nebula-metad …"   36 minutes ago   Up 36 minutes (healthy)   9560/tcp, 0.0.0.0:49210->9559/tcp, 0.0.0.0:49209->19559/tcp, 0.0.0.0:49208->19560/tcp                  nebula-docker-compose_metad1_1

最后登录容器排查问题

[nebula-docker-compose]$ docker exec -it 2a6c56c405f5 bash
[root@2a6c56c405f5 nebula]#

下一步

连接 NebulaGraph


最后更新: September 23, 2022