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Questions tagged [keepalived]

an open source daemon that implements the VRRP standard.

The keepalived project is an open source implementation of the VRRP protocol as well as a configuration interface to the Linux ipvs framework. VRRP is based on Cisco's proprietary Hot Standby Router Protocol (HSRP) concepts. When these two portions of the application are used in concert, a pair of linux servers can be a stable, low-cost alternative to commercial load balancers.

Cisco has claimed that VRRP is protected under HSRP patents, so using keepalived is legally questionable.

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Need Restart OS Level After change virtual ip on keepalived

I am using keepalived for make HA current maxscale and using virtual IP on keepalived. If I change virtual IP on keepalived I must restart OS on VM or restart keepalived service only? I am still confused about that.
febry
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Can I have identical config on all Keepalived nodes?

While trying to configure an experimental Kubernetes cluster (in a few VMs on my laptop) as "high available" I found the advise to do this using the combination of keepalived and haproxy (…
Niels Basjes
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IPVS transmitting packets to incorrect backends

We are using ipvs for L4 loadbalancing which transmits packets to L7 backends on ipip tunnel mode. There are three ipvs systems configured with source hashing for persistence. Sometimes, ipvs is transmitting the packets to incorrect backends. For…
Vignesh SP
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how to health check haproxy backend with different IP?

I am running 2 haproxy servers that keep state of each other with keepalived to be fault tolerant. These haproxies have many frontends and backends, in order to avoid port exhaustion when forwarding to backends I added the "source" param so it will…
MarceloPrego
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Haproxy service won’t start when keepalived service is running

I am trying to configure haproxy with keepalived but if I start keepalived service first, haproxy fails to start. When keepalived service is stopped, haproxy starts without any problems. I get the error below when I attempt to start haproxy manually…
VS_777
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2 Node -- KeepaliveD -- network break

I have a two node ( VMs ) setup running keepaliveD. The problem is that due to only ability of managing the VMs from command line, I can't demonstrate how the network break between both node-A and node-B will behave ( if I would have a control, I…
Nasir Mahmood
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active/active load balancer in linux?

we have 2 haproxy servers in an active passive (keepalived) setup forwarding to a couple apache backends. The load has increased and I'm searching for an active active load balancer solution. Is there anybody that has faced a similar issue? If…
MarceloPrego
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Get status of the master VRRP router Keepalived

I have two Linux routers (RHEL 7) participating in a redundant VRRP configuration provided by the keepalived package version 2.0.20. These two routers used to be running RHEL 6 and keepalived version 2.0.16 but we recently upgraded them to the…
dutsnekcirf
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Keepalived: Invalid master transition

We have a two machine keepalived setup where both machines are configured in the same way. vrrp_instance RP_VI_1 { interface eth3 state BACKUP virtual_router_id 61 priority 150 …
Dero
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Does something remember network state at Linux reboot?

I have two systems using keepalived with scripts which run at all state transitions (backup, fault, master). At bootup these scripts document the network configuration (ip addr, ip ro) when they are launched (master state is assumed thus running…
Senior Geek
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Keepalived not executing scripts

I have a few state change scripts executed and they seem to be called on when I view the service status but they never run. If I execute the script manually it works fine. Any thoughts? Using Deb9.
user206106
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How does loadbalancers like haproxy and keepalived implement failover/high-availability for themselves, in case the machine they are running dies?

I'm trying to understand how my load balance software does not become a single-point-of-failure. Do load-balancing software usually support failover/ha for themselves?
Donald Trunk
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What FLOSS linux software should I use for high-availability on an FTP server on vmware?

I don't mean this as an opinion-based question. I want to know if my assumption is correct to use a network-oriented tool (keepalived) as opposed to a cluster-oriented tool (heartbeat) in a scenario where I want to have several linux FTP servers…
MattBianco
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LVS Keepalived connection between master and backup

I configured two lvs keepalived servers. The first is master server, ip 10.1.88.76, iptables closed. The second is backup server, ip 10.1.88.77, iptables closed. the network connection between two servers is ok (verified by ping) But, the problem is…
user1111073
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