步骤 2：启动 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¶
在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 9779Note
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¶
在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¶
最后更新:
February 23, 2023