Tag: Technical Blog

SQL On The Edge #1 – 2016 Installer

  Hello and welcome to my new video blog (Vlog) series SQL On The Edge! My goal with these videos is to provide short, concise demonstrations of the latest and greatest features regarding SQL Server, Azure SQL Database and other…

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Licensing Oracle in a public cloud: the CPU calculation impact

Based on previous findings on CPU counting in public clouds, we look at an example where it makes a big difference: software licensing, particularly Oracle. Additional licensing costs resulting from CPU counting can dwarf any cost savings on infrastructure. We talk about how this happens, and show an example.

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Virtual CPUs with Google Compute Engine

After looking at how virtual CPUs are handled in Amazon Web Services and Microsoft Azure, we explore CPU definitions and CPU performance under the Google Compute Engine platform.

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Slimming Down Oracle RAC 12c’s Resource Footprint

Oracle Grid Infrastructure 12c uses a considerable amount of RAM and CPU resources; here are a few tips to shoehorn it into a 2GB virtual machine.

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Avro MapReduce Jobs in Oozie

Normally when using Avro files as input or output to a MapReduce job, you write a Java main[] method to set up the Job using AvroJob. That documentation page does a good job of explaining where to use AvroMappers, AvroReducers,…

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Loose Coupling and Discovery of Services With Consul — Part 2

Creating a Consul Client Docker Image In my previous post, I demonstrated how to create a cluster of Consul servers using a pre-built Docker image. I was able to do this because our use case was simple: run Consul. In…

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Loose Coupling and Discovery of Services With Consul — Part 1

Today I would like to demonstrate the use of Consul to help achieve loose coupling and discovery of services, two important principles of service-oriented architecture (SOA) present in modern, elastic infrastructures. If you have ever designed an architecture to be…

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Comparing CPU Throughput of Azure and AWS EC2

After observing CPU core sharing with Amazon Web Services EC2, I thought it would be interesting to see if Microsoft Azure platform exhibits the same behavior. Signing up for Azure’s 30-day trial gives $200 in credit to use over the…

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SaltStack for Remote Parallel Execution of Commands

There are many scenarios when a SysAdmin has to do a “box walk” of the entire infrastructure to execute a command across many servers. This is universally accepted as one of the less glamorous parts of our job. The larger…

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vCPU sharing in EC2: HVM to the rescue?

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I’ve been doing some testing to clarify what a vCPU in Amazon Web Services actually is. Over the course of the testing, I experienced inconsistent results on a 2-thread test on a 4-vCPU m3.xlarge system, due to the mislabeling of…

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