Я надеюсь, что кто-нибудь увидит, что я делаю неправильно, и предложит помощь в запуске keepalived track_script.
У меня установлен приоритет 101 для vrrp_instance основного блока поддержки активности и 100 для блока переключения при отказе. Отключение сети или остановка поддержки активности на первичном блоке заставляет VIP переключиться на вторичный блок, как и ожидалось.
Если бы сценарий был запущен, я бы ожидал, что он добавит 2 к приоритету, если сценарий завершится успешно. Однако tcpdump
всегда показывает приоритет без изменений. Даже если я установлю фиктивную настройку скрипта, я никогда не увижу ничего о скрипте в / var / log / messages об этом. Остановка службы HAProxy не имеет никакого эффекта, и другие тесты, которые я провел со сценарием, показывают, что он никогда не запускается.
выход tcpdump
:
172.18.8.2 > 224.0.0.18: vrrp 172.18.8.2 > 224.0.0.18: VRRPv2, Advertisement, vrid 51, prio 101, authtype simple, intvl 1s, length 20, addrs: 172.18.8.4 auth "password"
Вот конфигурация keepalived:
global_defs {
router_id BETAPROXYSLC01
}
vrrp_script chk_haproxy {
script "killall -0 haproxy"
interval 2
weight 2
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 51
priority 101
advert_int 1
notify /usr/local/bin/notify.sh
authentication {
auth_type PASS
auth_pass password
}
virtual_ipaddress {
172.18.8.4
}
track_script{
chk_haproxy
}
}
Вот журнал запуска keepalived с помощью "-D -d":
Oct 15 11:50:31 BETAPROXYSLC01 systemd: Starting LVS and VRRP High Availability Monitor...
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived[2702]: Starting Keepalived v1.2.10 (06/10,2014)
Oct 15 11:50:31 BETAPROXYSLC01 systemd: Started LVS and VRRP High Availability Monitor.
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived[2703]: Starting Healthcheck child process, pid=2704
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived[2703]: Starting VRRP child process, pid=2705
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Netlink reflector reports IP 172.18.8.2 added
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Netlink reflector reports IP fe80::215:5dff:fe01:108 added
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Registering Kernel netlink reflector
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Registering Kernel netlink command channel
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Opening file '/etc/keepalived/keepalived.conf'.
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Configuration is using : 6133 Bytes
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: ------< Global definitions >------
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Router ID = BETAPROXYSLC01
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Smtp server connection timeout = 30
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Email notification from = root@betaproxyslc01
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Netlink reflector reports IP 172.18.8.2 added
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Netlink reflector reports IP fe80::215:5dff:fe01:108 added
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Registering Kernel netlink reflector
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Registering Kernel netlink command channel
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Registering gratuitous ARP shared channel
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Opening file '/etc/keepalived/keepalived.conf'.
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Configuration is using : 63558 Bytes
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: ------< Global definitions >------
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Router ID = BETAPROXYSLC01
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Smtp server connection timeout = 30
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Email notification from = root@betaproxyslc01
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP IPv4 mcast group = 224.0.0.18
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP IPv6 mcast group = 224.0.0.18
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: SNMP Trap disabled
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: ------< VRRP Topology >------
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP Instance = VI_1
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Want State = BACKUP
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Runing on device = eth0
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Virtual Router ID = 51
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Priority = 101
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Advert interval = 1sec
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Authentication type = SIMPLE_PASSWORD
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Password = password
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Virtual IP = 1
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: 172.18.8.4/32 dev eth0 scope global
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Generic state transition script = '/usr/local/bin/notify.sh'
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: ------< VRRP Scripts >------
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP Script = chk_haproxy
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Command = /usr/local/bin/chk_haproxy
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Interval = 2 sec
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Timeout = 0 sec
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Weight = 2
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Rise = 1
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Fall = 1
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Status = INIT
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: Using LinkWatch kernel netlink reflector...
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) Entering BACKUP STATE
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP sockpool: [ifindex(2), proto(112), unicast(0), fd(10,11)]
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: VRRP IPv4 mcast group = 224.0.0.18
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: VRRP IPv6 mcast group = 224.0.0.18
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: SNMP Trap disabled
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: ------< SSL definitions >------
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Using autogen SSL context
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Using LinkWatch kernel netlink reflector...
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) forcing a new MASTER election
Oct 15 11:50:31 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) forcing a new MASTER election
Oct 15 11:50:32 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) Transition to MASTER STATE
Oct 15 11:50:33 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) Entering MASTER STATE
Oct 15 11:50:33 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) setting protocol VIPs.
Oct 15 11:50:33 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.18.8.4
Oct 15 11:50:33 BETAPROXYSLC01 avahi-daemon[510]: Registering new address record for 172.18.8.4 on eth0.IPv4.
Oct 15 11:50:33 BETAPROXYSLC01 Keepalived_healthcheckers[2704]: Netlink reflector reports IP 172.18.8.4 added
Oct 15 11:50:38 BETAPROXYSLC01 Keepalived_vrrp[2705]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.18.8.4
Моя проблема заключалась в опечатке в файле keepalived.conf.
Здесь отсутствует пробел между track_script и открывающей скобкой:
track_script{
chk_haproxy
}
Изменение его на это работает:
track_script {
chk_haproxy
}