Heartbeat manual failover

When a primary or secondary high-availability (HA) host fails, JSA maintains data www.doorway.rug: heartbeat. B. Legacy Heartbeat manual pages apphbd — Application Heartbeat Monitor for High-Availability Linux hb_takeover — issues a failover request to the cluster manager hb_standby — issues a failover request to the cluster manager C. Resource agent manual pages . For interface failover to operate properly, each copy of the interface must have an input Heartbeat PI tag, and an output Heartbeat PI tag. Therefore, a total of four Heartbeat tags are required. The input and output tag for each interface copy must have the string [UFO_Heartbeat:n] in .

I found heartbeat to be a PITA to configure and implement on CentOS , as you can see from the question. This was the first package where I had to manually symlink etc., so rather than do the manual work, I did some more research and found keepalived, which works well, especially in an environment where only unicast is supported (cloud vps). Manual Chapter: Managing Failover Applies To: Show Versions When you configure a Sync-Failover device group as part of device service clustering components, as well as the heartbeat of various system services. You can configure the system to initiate failover whenever it detects a heartbeat failure. The heartbeat is an ICMP ping to the HA peer over the control link, and the peer responds to the ping to establish that the firewalls are connected and responsive. By default, the interval for the heartbeat is milliseconds. A ping is sent every milliseconds and if there are three consecutive heartbeat losses, a failovers occurs.

Appendix B. Legacy Heartbeat manual pages Next: Name. hb_takeover — issues a failover request to the cluster manager. Synopsis. , heartbeat (8). Primary HA Host Failure, Secondary HA Host Failure, HA Failover Event Sequence, Network Connectivity Tests, Heartbeat Ping Tests, Primary Disk Failure, Manual Failovers. IMP HA Manual Failover - Still failed over. IMP v (1) SU9. Our IMP HA config has the Publisher at site A and the Sub at site B. We run active/passive, so all users are running from site A and only run from site B if there is a failure at site A or we force a manual failover. We had a scheduled network outage at site B, so I did a manual.