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jwbensley
Asked: 2013-04-12 08:35:16 +0800 CST

keepalived 不会启动

  • 772

我已经编译和配置keepalived但是它不会启动。

这是我最基本的配置；

    vrrp_sync_group PUBLIC_WEB_IPS {
            group {
                    public_http_ip_lan
            }
    }

    vrrp_instance public_http_ip_lan {
            state MASTER
            interface br1118
            virtual_router_id 18
            priority 100
            advert_int 1
            virtual_ipaddress {
                    192.168.0.254/24 dev br1118
            }
            nopreempt

    }

当我启动 keepalived 时，我没有收到任何错误，但它似乎让大部分等待启动，然后暂停/挂起？这是启动时来自 /var/log/syslog keepalived；

Apr 11 17:25:33 basil Keepalived[8047]: Starting Keepalived v1.2.7 (04/08,2013)
Apr 11 17:25:33 basil Keepalived[8048]: Starting Healthcheck child process, pid=8051
Apr 11 17:25:33 basil Keepalived[8048]: Starting VRRP child process, pid=8052
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Initializing ipvs 2.6
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Interface queue is empty
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: No such interface, eth0
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: No such interface, eth1.116
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: No such interface, br1116
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: No such interface, eth1.118
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: No such interface, br1118
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP 10.0.115.69 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP 10.0.116.249 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP 192.168.0.250 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP fe80::2a0:c9ff:fe8f:4164 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP fe80::220:edff:fe9f:9774 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP fe80::2a0:c9ff:fe8f:4164 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP fe80::2a0:c9ff:fe8f:4164 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP fe80::2a0:c9ff:fe8f:4164 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Netlink reflector reports IP fe80::2a0:c9ff:fe8f:4164 added
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Registering Kernel netlink reflector
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Registering Kernel netlink command channel
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Configuration is using : 2777 Bytes
Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Using LinkWatch kernel netlink reflector...

keepalived仍在运行（且 CPU 使用率为 2~3%，RAM 为 10%）

user@basil:/usr/local/etc/keepalived$ ps aux | grep keepalived
root      8048  0.0  0.1   8372   808 ?        Ss   17:25   0:00 /usr/local/sbin/keepalived -D
root      8051  0.0  0.3   8492  1820 ?        S    17:25   0:00 /usr/local/sbin/keepalived -D
root      8052  0.0  0.2   8492  1344 ?        S    17:25   0:00 /usr/local/sbin/keepalived -D

当我启动 keepalived 时，tcpdump 中没有显示任何内容，例如没有广告：

user@basil:~$ sudo tcpdump -nlASX -s 0 -vvv -e src net 192.168.0.0/24 and not port 22tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes

网桥接口已启动（因为它运行在一个单独的 vlan 上）；

user@basil:/usr/local/etc/keepalived$ ip a s br1118
11: br1118: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether 00:a0:c9:8f:41:64 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.250/24 brd 192.168.0.255 scope global br1118
    inet6 fe80::2a0:c9ff:fe8f:4164/64 scope link 
       valid_lft forever preferred_lft forever

我可以 ping 通该 VLAN 上的主机。这是怎么回事，我怀疑我犯了一个非常愚蠢的错误，但我无法发现任何错误。

更新：

按要求：

user@basil:~$ ifconfig -a
br1116    Link encap:Ethernet  HWaddr 00:a0:c9:8f:41:64  
          inet addr:xxxxx  Bcast:xxxxx  Mask:xxxx
          inet6 addr: fe80::2a0:c9ff:fe8f:4164/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:20 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1120 (1.0 KiB)  TX bytes:468 (468.0 B)

br1118    Link encap:Ethernet  HWaddr 00:a0:c9:8f:41:64  
          inet addr:xxxxx  Bcast:xxxxx  Mask:xxxx
          inet6 addr: fe80::2a0:c9ff:fe8f:4164/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:19 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1064 (1.0 KiB)  TX bytes:468 (468.0 B)

eth0      Link encap:Ethernet  HWaddr 00:20:ed:9f:97:74  
          inet addr:xxxx  Bcast:xxxxx  Mask:xxxxx
          inet6 addr: fe80::220:edff:fe9f:9774/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:169 errors:0 dropped:0 overruns:0 frame:0
          TX packets:96 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:20019 (19.5 KiB)  TX bytes:11089 (10.8 KiB)

eth1      Link encap:Ethernet  HWaddr 00:a0:c9:8f:41:64  
          inet6 addr: fe80::2a0:c9ff:fe8f:4164/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:150 errors:0 dropped:10 overruns:0 frame:0
          TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:11680 (11.4 KiB)  TX bytes:2436 (2.3 KiB)

eth1.116  Link encap:Ethernet  HWaddr 00:a0:c9:8f:41:64  
          inet6 addr: fe80::2a0:c9ff:fe8f:4164/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:20 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1120 (1.0 KiB)  TX bytes:936 (936.0 B)

eth1.118  Link encap:Ethernet  HWaddr 00:a0:c9:8f:41:64  
          inet6 addr: fe80::2a0:c9ff:fe8f:4164/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:19 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1064 (1.0 KiB)  TX bytes:936 (936.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:10 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:732 (732.0 B)  TX bytes:732 (732.0 B)

我刚刚重新启动了这个盒子，这就是流量计数器很低的原因。

keepalived

3 个回答

  1. Best Answer

    我遇到的情况是 keepalived 启动后什么也不做，最后一行日志是；

    Apr 11 17:25:33 basil Keepalived_healthcheckers[8051]: Using LinkWatch
kernel netlink reflector...

    删除设置并重新开始后，我发现有两种情况 keepalived 会在此时停止并且什么都不做；

    1. Keepalived 被指向 keepalived.conf 文件，所以它在技术上是在没有配置的情况下启动的

    2. Keepalived 正在加载配置文件，但出现错误（例如拼写错误）

    • 2

  2. keepalived 的启动问题通常是因为 keepalived.conf 文件中的错误。Keepalived 目前不支持检查配置文件，如果发现任何错误，它通常会忽略所有可能的错误。

    但是有一种方法可以更轻松地检测配置问题。-d您应该使用一个将配置数据转储到系统日志中的开关来启动 keepalived 。如果您是从 Red Hat/Centos 软件包安装的，只需编辑/etc/sysconfig/keepalived并将其附加-d到 KEEPALIVED_OPTIONS 变量：

    KEEPALIVED_OPTIONS="-D -d"

    现在，当您启动 keepalived 时，您将能够在 syslog 中读取 keepalived 解析了哪些配置数据。此外，如果配置的某些部分有效而某些部分无效，则可能是因为您忘记了用右括号关闭一个配置块。

    • 2

  3. RHEL 6.5 有同样的问题，如果你从源代码编译 keepalived ， 它将把配置文件/usr/local/etc/keepalived放在/etc/keepalived.conf/etc/keepalived/keepalived.conf

    • 1

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