keepalived: adjusting timeout for VRRP advert packets
2017年3月21日 · I have a master server and a backup server that share a floating IP use keepalived for failover. I haven't explicitly defined any health checks, so I assume that the backup server grabs the floating IP and transitions to master status whenever it hasn't received any VRRP advert packets from the master service for some period of time.
backup - View Current State of Keepalived - Server Fault
2013年12月8日 · You could use the notify command to write out a state file. # for ANY state transition. # "notify" script is called AFTER the # notify_* script(s) and is executed # with 3 arguments provided by keepalived # (ie don’t include parameters in the notify line).
firewalld - Keepalived split brain issue - Server Fault
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HAProxy/Keepalived vrrp set up in AWS EC2 with EIP (Basic EC2)
2014年6月18日 · LB1 - Contents of keepalived.conf. vrrp_script chk_haproxy { script "killall -0 haproxy" interval 2 weight ...
failover - KeepAliveD, Rackspace Cloud, Unicast - Server Fault
2013年11月28日 · KeepAliveD will be used for failover between MASTER and BACKUP servers. Like most clouds, Multicast is not ...
What's the difference between keepalived and corosync, others?
Keepalived is much simpler, and is usually used for hot-standby usage (i.e. To keep a service up in a redundant fashion.) A good usage example with keepalived that I have had success with is for redundant Nginx load balancers. In that situation, if a node fails, the …
What is the difference between keepalive and heartbeat?
Heartbeat is not the best tool to get a redundant haproxy setup, it was designed to build clusters, which is a lot different from having two redundant stateless network equipments. Network oriented tools such as keepalived or ucarp are the best suited for that task. The difference between those two families is simple
keepalived - "notifiy_master"/ "notify_backup" does not start/stop ...
2021年2月17日 · I tried to reach this with notify_master and notify_backup in the keepalived.conf. Sharing of the virtual IPs works fine, but freeradius won’t start or stop on changing of the state (master to backup and vice versa) on both of my servers. It only works with notify_stop, which actually stops freeradius when i stop the keepalived service. Also ...
keepalived questions (requirements, abilities, limitations)
2) Can keepalived nodes run on different networks, "internet" networks? 3) Is keepalived depend on the router? (as far as I understand, the virtual IP should point to the real router/switch that connects both nodes). 4) Is keepalived "service-independent"?-> What is keepalived's involvement domain? IPs only?
Can I have identical config on all Keepalived nodes?
2020年8月24日 · keepalived as configured in the linked kubernetes docco provides a single VRRP virtual IP address as the highly available endpoint shared between the masters. The nodes all configure the same VRRP IP address (or name) and keepalived moves that address around the masters. The "election" is completed in the keepalived healthcheck and failover logic.