Mongo vs Postgres as simple JSON object store
We needed a JSON document store for a microservice. The documents are relatively large, about 1MB, and they should be retrieved by id. Mongo and Postgres are the obvious candidates… Read more »
Category: Uncategorized
CockroachDB vs Postgres-BDR
We have been happily using Postgres-BDR for years as a multi-master database for fault-tolerant applications – it’s been incredibly robust for us. The advantage of a multi-master database is that… Read more »
HAProxy option redispatch & backup servers (never miss a beat)
When we’re creating an API with fault-tolerance, to reduce the number of single points of failure, we often use Postgres BDR, a multi-master database, which allows us to provide two… Read more »
How to migrate large VMWare VMs to remote data-centers using rsync
Using VCenter’s migration over the internet to a remote data-center is often too slow for practical purposes – a 200GB VM may take several hours to move and that may… Read more »
Angular/REST/Java microservice architecture – step-by-step
To familiarize ourselves with all the technologies we will be using day-to-day, we wanted to create an application using as many of them as possible as an exercise. In this post we are going to outline the steps to recreate that application.
Struggles with WordPress on Docker
This blog was running on WordPress on a dedicated Ubuntu 14.04 VM host. When I tried to update the host to Ubuntu 16.04, I broke WordPress. Rather than trying to… Read more »
VMWare Clarity/Angular modal dialogs
The VMWare Clarity Design System documentation is a bit vague about how modal dialogs should be handled. The examples presented are not really appropriate for real-world applications, where dialogs need… Read more »
Letsencrypt in 15 minutes
I was looking for a simple way to use Let’s Encrypt to enable https for a web site and I found a Docker image nmarus/docker-haproxy-certbot which met my needs. Remember, Let’s Encrypt… Read more »
Backing up ESXi VMs with ghettoVCB
We’ve been using the free ESXi ghettoVCB backup utility for the last 5 years to backup about 150 VMs daily without a glitch. ghettoVCB snapshots the VM, copies away the… Read more »