• 后台任务节点高可用
    • 配置keepalived服务
    • 修改seafile前端服务器相关配置

    后台任务节点高可用

    配置keepalived服务

    在每个seafile后端节点上安装和配置 keepalived 来实现浮动 IP 地址。

    CentOS 7:

    1. yum install keepalived -y

    假设配置了两个seafile后台任务节点：background1、background2

    在background1上修改 keepalived 配置文件(/etc/keepalived/keepalived.conf),写入如下内容：

    1. ! Configuration File for keepalived
    3. global_defs {
    4.     notification_email {
    5.         root@localhost
    6.     }
    7.     notification_email_from keepalived@localhost
    8.     smtp_server 127.0.0.1
    9.     smtp_connect_timeout 30
    10.     router_id background1
    11.     vrrp_mcast_group4 224.0.100.18
    12. }
    14. vrrp_instance VI_1 {
    15.     state MASTER
    16.     interface eno16777736
    17.     virtual_router_id 52
    18.     priority 100
    19.     advert_int 1
    20.     authentication {
    21.         auth_type PASS
    22.         auth_pass hello123
    23.     }
    24.     virtual_ipaddress {
    25.         172.26.154.43/24 dev eno16777736
    26.     }
    27.     notify_master "/opt/seafile/seafile-server-latest/seafile-background-tasks.sh start"
    28.     notify_backup "/opt/seafile/seafile-server-latest/seafile-background-tasks.sh stop"
    29. }

    在background2上修改 keepalived 配置文件(/etc/keepalived/keepalived.conf),写入如下内容：

    1. ! Configuration File for keepalived
    3. global_defs {
    4.     notification_email {
    5.         root@localhost
    6.     }
    7.     notification_email_from keepalived@localhost
    8.     smtp_server 127.0.0.1
    9.     smtp_connect_timeout 30
    10.     router_id background2
    11.     vrrp_mcast_group4 224.0.100.18
    12. }
    14. vrrp_instance VI_1 {
    15.     state BACKUP
    16.     interface eno16777736
    17.     virtual_router_id 52
    18.     priority 98
    19.     advert_int 1
    20.     authentication {
    21.         auth_type PASS
    22.         auth_pass hello123
    23.     }
    24.     virtual_ipaddress {
    25.         172.26.154.43/24 dev eno16777736
    26.     }
    27.     notify_master "/opt/seafile/seafile-server-latest/seafile-background-tasks.sh start"
    28.     notify_backup "/opt/seafile/seafile-server-latest/seafile-background-tasks.sh stop"
    29. }
    • 注意：以上配置中interface指定该节点的网卡设备名称，请根据实际情况配置。virtual_ipaddress 是后台服务的虚拟IP地址，也需要根据实际情况配置。

    分别在两个后端节点上重启keepalived服务：

    1. systemctl restart keepalived.service

    重启成功后查看background1节点是否成功启用了相应的VIP。

    修改seafile前端服务器相关配置

    当配置好keepalived实现了虚拟IP漂移后，需要将seafile前端服务器里的相关配置指向后端服务器的虚拟IP。
    在各seafile前端服务器节点上：
    编辑seafevents.conf，修改以下配置信息：

    1. [INDEX FILES]
    2. ...
    3. es_host = <vip of nodes background>
    4. ...

    编辑seahub_settings.py，修改以下配置信息：

    1. ...
    2. OFFICE_CONVERTOR_ROOT = 'http://<vip of nodes background>'
    3. ...
    • 注意：以上配置文件中的'vip'指的是keepalived服务上配置的虚拟IP地址。

    重启前端节点上的seafile、seahub服务：

    1. ./seafile.sh restart
    2. ./seahub.sh restart # 如果你使用 fastcgi 请使用此命令`./seahub.sh restart-fastcgi`