使用RPM/DEB包部署Nebula Graph集群

    准备5台用于部署集群的机器。

    在集群的每一台服务器上都安装Nebula Graph，安装后暂不需要启动服务。安装方式请参见：

    修改每个服务器上的Nebula Graph配置文件。

    Nebula Graph的所有配置文件均位于安装目录的目录内，包括nebula-graphd.conf、nebula-metad.conf和nebula-storaged.conf，用户可以只修改所需服务的配置文件。各个机器需要修改的配置文件如下。

    用户可以参考如下配置文件的内容，仅展示集群通信的部分设置，未展示的内容为默认设置，便于用户了解集群间各个服务器的关系。

    Note

    主要修改的配置是meta_server_addrs，所有配置文件都需要填写所有Meta服务的IP地址和端口，同时需要修改local_ip为机器本身的联网IP地址。配置参数的详细说明请参见：

    • Meta服务配置

    • 机器A配置

      • nebula-graphd.conf

      • nebula-storaged.conf

        1. ########## networking ##########
        2. # Comma separated Meta server addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-storaged process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.111
        8. # Storage daemon listening port
        9. --port=9779

      • nebula-metad.conf

        1. ########## networking ##########
        2. # Comma separated Meta Server addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-metad process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.111
        8. # Meta daemon listening port
        9. --port=9559

    • 机器B配置

      • nebula-graphd.conf

        1. ########## networking ##########
        2. # Comma separated Meta Server Addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-graphd process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.112
        8. # Network device to listen on
        9. --listen_netdev=any
        10. # Port to listen on

      • nebula-storaged.conf

        1. ########## networking ##########
        2. # Comma separated Meta server addresses
        3. # Local IP used to identify the nebula-storaged process.
        4. # Change it to an address other than loopback if the service is distributed or
        5. # will be accessed remotely.
        6. --local_ip=192.168.10.112
        7. # Storage daemon listening port
        8. --port=9779

      • nebula-metad.conf

    • 机器C配置

      • nebula-graphd.conf

        1. ########## networking ##########
        2. # Comma separated Meta Server Addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-graphd process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.113
        8. # Network device to listen on
        9. --listen_netdev=any
        10. # Port to listen on
        11. --port=9669

      • nebula-storaged.conf

        1. ########## networking ##########
        2. # Comma separated Meta server addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-storaged process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.113
        8. # Storage daemon listening port
        9. --port=9779
        1. ########## networking ##########
        2. # Comma separated Meta Server addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-metad process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.113
        8. # Meta daemon listening port
        9. --port=9559

    • 机器D配置

      • nebula-graphd.conf

        1. ########## networking ##########
        2. # Comma separated Meta Server Addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-graphd process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        8. # Network device to listen on
        9. # Port to listen on
        10. --port=9669

      • nebula-storaged.conf

    • 机器E配置

      • nebula-graphd.conf

        1. ########## networking ##########
        2. # Comma separated Meta Server Addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-graphd process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.115
        8. # Network device to listen on
        9. --listen_netdev=any
        10. # Port to listen on
        11. --port=9669

      • nebula-storaged.conf

        1. ########## networking ##########
        2. # Comma separated Meta server addresses
        3. --meta_server_addrs=192.168.10.111:9559,192.168.10.112:9559,192.168.10.113:9559
        4. # Local IP used to identify the nebula-storaged process.
        5. # Change it to an address other than loopback if the service is distributed or
        6. # will be accessed remotely.
        7. --local_ip=192.168.10.115
        8. # Storage daemon listening port
        9. --port=9779

    依次启动各个服务器上的对应进程。说明如下。

    启动Nebula Graph进程的命令如下：

    1. sudo /usr/local/nebula/scripts/nebula.service start <metad|graphd|storaged|all>

    Note

    • graphd、storaged和metad都启动时，可以用all代替。

    • /usr/local/nebula是Nebula Graph的默认安装路径，如果修改过安装路径，请使用实际路径。更多启停服务的内容，请参见管理Nebula Graph服务。

    1. $ ./nebula-console --addr 192.168.10.111 --port 9669 -u root -p nebula
    3. 2021/05/25 01:41:19 [INFO] connection pool is initialized successfully
    4. Welcome to Nebula Graph!
    6. > SHOW HOSTS;
    7. +------------------+------+----------+--------------+----------------------+------------------------+
    8. | Host             | Port | Status   | Leader count | Leader distribution  | Partition distribution |
    9. +------------------+------+----------+--------------+----------------------+------------------------+
    10. | "192.168.10.111" | 9779 | "ONLINE" | 0            | "No valid partition" | "No valid partition"   |
    11. +------------------+------+----------+--------------+----------------------+------------------------+
    12. | "192.168.10.112" | 9779 | "ONLINE" | 0            | "No valid partition" | "No valid partition"   |
    13. +------------------+------+----------+--------------+----------------------+------------------------+
    14. | "192.168.10.113" | 9779 | "ONLINE" | 0            | "No valid partition" | "No valid partition"   |
    15. +------------------+------+----------+--------------+----------------------+------------------------+
    16. | "192.168.10.114" | 9779 | "ONLINE" | 0            | "No valid partition" | "No valid partition"   |
    17. +------------------+------+----------+--------------+----------------------+------------------------+
    18. | "192.168.10.115" | 9779 | "ONLINE" | 0            | "No valid partition" | "No valid partition"   |
    19. +------------------+------+----------+--------------+----------------------+------------------------+
    20. | "Total"          |      |          | 0            |                      |                        |