Related

Product Now Available: Managed MySQL Databases Product
Instant DNS Lookup Tool Tool
Why are snapshots so slow Question Question
Running a web-based video game on a droplet Question Question

Question

How to setup High Availability Wordpress i.e implementing a Failover on Digital Ocean

Posted May 29, 2015 11.9k views
UbuntuMySQLWordPressLAMP StackDigitalOceanScalingDNSLoad BalancingClustering

I am running Ubuntu 14.04 and I want to implement a simple yet effective Failover for my Wordpress site, to enable High Availability.

Currently, I am running my Wordpres site on just 1 Droplet. I was thinking about cloning the current Droplet and setup MySQL Master-Master replication in combination with DNS failover from DNSMadeEasy. However, the failover time is too long. It takes up to 10 minutes before the failover takes effect due to the nature DNS works with TTLs and such.

Hence, I started looking for another solution and found this: https://www.linode.com/docs/websites/cms/high-availability-wordpress
However, DigitalOcean does not offer Load Balancers, so I am looking for alternatives.....

My requirements are as pretty simple: In case the main/master Droplet goes down, it should switch over to the Backup/Failover Droplet. That’s all. No load balancing required, just failover only. Ofcourse, this requires that the databases on both Droplets are continously synced, else a failover makes no sense. Also, As soon the main/master Droplet comes back online, it should automatically sync the database again and switch back over to the main/master Droplet.

Would you please advise if this can be done on Digital Ocean? I would greatly appreciate if you provide me with a simple tutorial or hints to do it. I am still beginner to this technology.

Thanks.

Add a comment
Freekers
By:
Freekers
Add a comment
1 comment
  • pageiistudio February 7, 2016
    Reply Report

    Hi, have you found a solution that you may like to share? I’m considering another type of solution involving polling the main server for http response. Ideally, the polling/monitoring server should be a third server. However, that still means writing and maintaining a script to accomplish that.

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

×
2 answers
asb June 7, 2016

While DigitalOcean doesn’t offer a load balancing product, we do provide some building blocks for setting up a high availability system. Using Floating IPs, you can bounce an IP address from one server to another. Paired with software like Heartbeat, you can build a system where the IP is automatically moved from one instance to another if one of them falls over. Check out this tutorial for an example:

How To Create a High Availability Setup with Heartbeat and Floating IPs on Ubuntu 14.04
by Mitchell Anicas
Heartbeat is an open source program that provides cluster infrastructure capabilities—cluster membership and messaging—to client servers, which is a critical component in a high availability (HA) server infrastructure. Heartbeat is typically used in conjunction with a cluster resource manager (CRM), such as Pacemaker, to achieve a complete HA setup. However, in this tutorial, we will demonstrate how to create a 2-node HA server setup by simply using Heartbeat and a DigitalOcean Floating IP.
Reply Report
angldavd June 20, 2017

there are any tutorial for load-balancer + Nginx + Wordpress?

Reply Report
Submit an Answer

Related

Looking for something else?

Ask a new question Search for more help