我们利用 heartbeat 实现高可用性。我想为 heartbeat 集群添加一个额外的 IP 地址，但我不想在此过程中完全重启集群。我是否可以向 heartbeat 发送一个信号，提示它重新解析“haresources”文件并对其采取行动？heartbeat -r 似乎不起作用。
答案1
问题是我执行“heartbeat -r”（运行“service heartbeat reload”时在 init.d 脚本中执行的命令）后没有等待足够长的时间。几分钟后，IP 才按预期显示在界面上。
答案2
您根本不需要重新加载 Heartbeat。只需将新的 IPaddr 资源添加到 haresources 文件中，如下所示
IPaddr::xx.xx.xx.xx
然后启动它
/etc/ha.d/resource.d/IPaddr xx.xx.xx.xx start
当然，你应该确保在活动节点上发出 IPaddr start。现在你应该能够在刚刚添加的 IP 地址上发送和接收流量。
答案3
只需在辅助机器上重新启动 Heartbeat，从而避免与资源管理相关的任何停机。
在这种情况下，主节点检测到从属机器已“死亡”并强制进行“故障转移”，重新加载资源文件并启动丢失的资源。
执行此操作时，日志非常明确：
May 9 12:10:40 gw2 heartbeat: [3684]: info: Received shutdown notice from 'gw1'.
May 9 12:10:40 gw2 heartbeat: [3684]: info: Resources being acquired from gw1.
May 9 12:10:40 gw2 heartbeat: [26469]: debug: notify_world: setting SIGCHLD Handler to SIG_DFL
May 9 12:10:40 gw2 harc[26469]: info: Running /etc/ha.d//rc.d/status status
May 9 12:10:40 gw2 mach_down[26521]: info: /usr/share/heartbeat/mach_down: nice_failback: foreign resources acquired
May 9 12:10:40 gw2 mach_down[26521]: info: mach_down takeover complete for node gw1.
May 9 12:10:40 gw2 heartbeat: [3684]: info: mach_down takeover complete.
May 9 12:10:40 gw2 heartbeat: [3684]: debug: StartNextRemoteRscReq(): child count 1
May 9 12:10:40 gw2 IPaddr2[26520]: INFO: Running OK
May 9 12:10:40 gw2 IPaddr2[26640]: INFO: Running OK
May 9 12:10:40 gw2 IPaddr2[26725]: INFO: Running OK
May 9 12:10:40 gw2 IPaddr2[26805]: INFO: Running OK
May 9 12:10:40 gw2 IPaddr2[26890]: INFO: Resource is stopped
May 9 12:10:40 gw2 heartbeat: [26470]: info: Local Resource acquisition completed.
May 9 12:10:40 gw2 heartbeat: [3684]: debug: StartNextRemoteRscReq(): child count 1
May 9 12:10:40 gw2 heartbeat: [26953]: debug: notify_world: setting SIGCHLD Handler to SIG_DFL
May 9 12:10:40 gw2 harc[26953]: info: Running /etc/ha.d//rc.d/ip-request-resp ip-request-resp
May 9 12:10:40 gw2 ip-request-resp[26953]: received ip-request-resp IPaddr2::1.2.3.4 OK yes
May 9 12:10:40 gw2 ResourceManager[26976]: info: Acquiring resource group: gw2 IPaddr2::1.2.3.4
May 9 12:10:40 gw2 IPaddr2[27006]: INFO: Resource is stopped
May 9 12:10:40 gw2 ResourceManager[26976]: info: Running /etc/ha.d/resource.d/IPaddr2 1.2.3.4 start
May 9 12:10:40 gw2 IPaddr2[27115]: INFO: ip -f inet addr add 1.2.3.4/24 brd 1.2.3.255 dev brwan
May 9 12:10:40 gw2 IPaddr2[27115]: INFO: ip link set brwan up
May 9 12:10:40 gw2 IPaddr2[27115]: INFO: /usr/lib/heartbeat/send_arp -i 200 -r 5 -p /var/run/resource-agents/send_arp-1.2.3.4 brwan 1.2.3.4 auto not_used not_used
May 9 12:10:40 gw2 IPaddr2[27091]: INFO: Success
May 9 12:10:47 gw2 heartbeat: [3684]: WARN: node gw1: is dead
May 9 12:10:47 gw2 heartbeat: [3684]: info: Dead node gw1 gave up resources.
May 9 12:10:47 gw2 heartbeat: [3684]: info: Link gw1:eth0 dead.
May 9 12:10:59 gw2 heartbeat: [3684]: info: Heartbeat restart on node gw1
May 9 12:10:59 gw2 heartbeat: [3684]: info: Link gw1:eth0 up.
May 9 12:10:59 gw2 heartbeat: [3684]: info: Status update for node gw1: status init
May 9 12:10:59 gw2 heartbeat: [3684]: info: Status update for node gw1: status up
May 9 12:10:59 gw2 heartbeat: [3684]: debug: StartNextRemoteRscReq(): child count 1
May 9 12:10:59 gw2 heartbeat: [28604]: debug: notify_world: setting SIGCHLD Handler to SIG_DFL
May 9 12:10:59 gw2 heartbeat: [3684]: debug: get_delnodelist: delnodelist=
May 9 12:10:59 gw2 harc[28604]: info: Running /etc/ha.d//rc.d/status status
May 9 12:10:59 gw2 heartbeat: [3684]: info: Status update for node gw1: status active
May 9 12:10:59 gw2 heartbeat: [3684]: debug: StartNextRemoteRscReq(): child count 1
May 9 12:10:59 gw2 heartbeat: [28619]: debug: notify_world: setting SIGCHLD Handler to SIG_DFL
May 9 12:10:59 gw2 harc[28619]: info: Running /etc/ha.d//rc.d/status status
May 9 12:10:59 gw2 heartbeat: [28634]: debug: notify_world: setting SIGCHLD Handler to SIG_DFL
May 9 12:10:59 gw2 harc[28634]: info: Running /etc/ha.d//rc.d/status status
May 9 12:11:00 gw2 heartbeat: [3684]: info: remote resource transition completed.