Category: Public Cloud

24 Aug 2023 AWS Cloud 👁 20 views

Auto Stop and Start EC2 Instances with Lambda

Below is a quick (am busy) outline on how to automatically stop and start your EC2 instances. Step 1: Tag your resources In order to decide which instances stop and start you first need to add an auto-start-stop: Yes tag to all the instances you want to be affected by the start / stop functions. Note: You […]

Read more →
23 May 2022 AWS Cloud 👁 13 views

How to Trigger Autoscaling Events with stress-ng Command

If you are testing how your autoscaling policies respond to CPU load then a really simple way to test this is using the “stress” command. Note: this is a very crude mechanism to test and wherever possible you should try and generate synthetic application load.

Read more →
22 Sep 2021 AWS Cloud 👁 6 views

How to Scale Cloud Consumption Without Costly Mistakes

Introduction This article follows on from the “Cloud Migrations Crusade” blog post… A single tenancy datacenter is a fixed scale, fixed price service on a closed network. The costs of the resources in the datacenter are divided up and shared out to the enterprise constituents on a semi-random basis. If anyone uses less resources than […]

Read more →
23 Mar 2021 AWS Cloud 👁 14 views

AWS S3 ETags: Verify File Integrity Using MD5 Hashes

I was playing with S3 the other day an I noticed that a file which I had uploaded twice, in two different locations had an identical ETag. This immediately made me think that this tag was some kind of hash. So I had a quick look AWS documentation and this ETag turns out to be […]

Read more →
15 Mar 2021 AWS Cloud 👁 15 views

TPC-H Test Data for AWS Redshift and EMR: Setup Guide

If you need to test out your big data tools below is a useful set of scripts that I have used in the past for aws emr and redshift the below might be helpful:

Read more →
04 Mar 2021 AWS Cloud 👁 15 views

AWS Error Messages, API Standards & Region Defaults: Fix Needed

This is a short blog, and its actually just simple a plea to AWS. Please can you do three things? North Virginia appears to be the AWS master node. Having this region as a master region causes a large number of support issues (for example S3, KMS, Cloudfront, ACM all use this pet region and […]

Read more →
28 Jan 2021 AWS Cloud 👁 14 views

Public Cloud Migration: Why Lift-and-Shift Strategies Fail

The cloud is hot…. not just a little hot, but smokin hot!! Covid is messing with the economy, customers are battling financially, the macro economic outlook is problematic, vendor costs are high and climbing and security needs more investment every year. What on earth do we do??!! I know…. lets start a crusade – lets […]

Read more →
12