Questions tagged [failover]

In computing, failover is automatic switching to a redundant or standby computer server, system, or network upon the failure or abnormal termination of the previously active application, server, system, or network. Failover and switchover are essentially the same operation, except that failover is automatic and usually operates without warning, while switchover requires human intervention.

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Is MySQL HA via Kubernetes a tried and proven solution?

I'm working on a project which is about to migrate to a new production environment. One of the key components in this project is a MySQL database. The MySQL database must be highly available. We're ...
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Cannot Implement Failover Clustering Windows Server 2019

I am learning how to implement a failover cluster. I have 3VMs running Windows Server 2019 Standard Edition on all the VMs and it is not activated. I installed failover cluster feature on all the VMs. ...
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Windows Disk Cluster for Hyper-V Failover Cluster

Looking for design assistance. Typically, I use a 2 node SAN disk cluster running CentOS and DRBD for high availability. I will then connect the hypervisor(s) via iSCSI; sometimes KVM/QEMU, sometimes ...
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Way to go for “dynamic” HA load balancing reverse proxy?

So what I want to do is, reverse proxy to a specific port based on the domain. e.g.: example.net => 10.0.0.1:10001 example.com => 10.0.0.1:10002 example.de => 10.0.0.1:10003 and so on The ...
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2x Windows Server for 2 labs in different parts of a building - what kind of failover to use

I have two servers and two labs in different parts of the building with Hyper-V 2019 with VMs for Windows Server Standard (2012 R2, will be upgrading in a few years). I want to: configure ServerA for ...
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Veritas Cluster nodes reboot when another is reset or hard turned off

We are conducting bi-yearly resiliency test on a 4 node VCS cluster. With two applications running on nodes 1-3 and 2-4 resp. in active-standby mode. When making a manual switch over, or a graceful ...
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setting keepalived for HA

I followed this blog to setup keepalived service. This question is in continuation with this one. But whenever i'm trying to ping the Virtual IP directly from host it always says host unreachable. ...
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moving ip of one VM to another VM

I've hosted two VMs on the same machine, one is active in nature i.e. hosting a service and is connected to a client (client is running directly on the host machine). I've to implement a fault ...
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What is the best way to handle DNS and failover management for a subdomain website when I don't have control of the domain?

Updating DNS for this subdomain would take hours or days, but we'd like to be able to set up a reliable auto-failover mechanism that I think would require faster DNS changes. What is best practice for ...
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Servers Redundancy/Fail over in different locations

One in a different city. These are individual servers, pretty much works as file servers. We upload images to those servers and at the end of the month we send the images to our clients (...
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How to configure failover cluster to register its records automatically after it deleted from dns server?

I have failover cluster with 2 nodes .Both nodes have windows server 2016 and i was configured DNS Aging and Scavenging (Cleanup Stale DNS Records). But unfortunately cluster name and listener dns ...
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Upto what number of nodes can keepalived / CTDB HA softwares scale for IP failovers?

We are trying to build a high availability cluster with a support to highly scalable architecture. In an effort we plan to use - DNS server to distribute client requests across N nodes. All active ...
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Switch to failover IP instead of main IP for all HTML requests?

I'm using Centos 8 and with my luck, my main IP is blacklisted on an API I'm trying to use. I have 3 failover IP addresses however. Is it possible for me to use one of these failovers instead?
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Route all outgoing traffic (Example: HTTP request) through failover IP?

My server is currently making requests on an API, but the address is rate limited due to an internal mistake that over-queried resulting in a week rate limit. In the meantime, I would like to contact ...
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How can I Configure Keepalived for MultiNetwork Servers?

I am going to configure two servers for IPFailover with Keepalived, but each server has two network cables, so they are double networked. Should I configure Keepalived as it is configured on single ...

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