Sean Hull's Scalable Startups » Technical Article

Professional Deployments Use Puppet For Configuration Management

Sean Hull — Sat, 21 May 2011 22:15:38 +0000

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Puppet is a configuration management tool that can be used to great advantage managing the configurations of a large fleet of servers in an enterprise. My first thought upon finishing Turnbull & McCune’s book was that it could well have been titled Pro Deployments, for it covers a whole host of topics, integrating Puppet with [...]

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iHeavy Insights 79 – Plumbing the Interwebs

Sean Hull — Sat, 30 Apr 2011 19:27:05 +0000

Read the original article at iHeavy Insights 79 – Plumbing the Interwebs

I meet new people all the time. It’s a way of life in New York. One of the first questions new people ask each other is “What do you do?”. It begins to sound like a cliche after a while, but it can also provide endless fascinating discussions as there are so many people with [...]

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Amazon EC2 Outage – Failures, Lessons and Cloud Deployments

Sean Hull — Wed, 27 Apr 2011 02:45:21 +0000

Read the original article at Amazon EC2 Outage – Failures, Lessons and Cloud Deployments

Now that we’ve had a chance to take a deep breath after last week’s AWS outage, I’ll offer some comments of my own. Hopefully just enough time has passed to begin to have a broader view, and put events in perspective. Despite what some reports may have announced, Amazon wasn’t down, but rather a small [...]

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Migrating Business To The Cloud – Advantages and Challenges

Sean Hull — Tue, 19 Apr 2011 16:37:09 +0000

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Cto cloud View more presentations from Sean Hull Related posts:Cloud Computing – Disciplined Deployments Review: Cloud Application Architectures Introduction to EC2 Cloud Deployments How To Build Highly Scalable Web Applications For The Cloud Migrating MySQL to Oracle Guide

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Cloud Computing Use Cases

Sean Hull — Tue, 05 Apr 2011 16:40:32 +0000

Read the original article at Cloud Computing Use Cases

Cloud Computing may not make sense for all application types. But as with the adoption of commodity hardware and Linux over a decade ago, economic considerations will continue to pressure adoption. This article is part of a multi-part series Intro to EC2 Cloud Deployments What types of applications do fit well in the cloud? o [...]

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Cloud Computing – Disciplined Deployments

Sean Hull — Tue, 29 Mar 2011 03:26:08 +0000

Read the original article at Cloud Computing – Disciplined Deployments

With traditional managed hosting solutions, we have best practices, we have business continuity plans, we have disaster recovery, we document our processes and all the moving parts in our infrastructure. At least we pay lip service to these goals, though from time to time we admit to getting side tracked with bigger fish to fry, [...]

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Migrating MySQL to Oracle Guide

Sean Hull — Wed, 02 Mar 2011 01:18:25 +0000

Read the original article at Migrating MySQL to Oracle Guide

Also find Sean Hull’s ramblings on twitter @hullsean. Migrating from MySQL to Oracle can be as complex as picking up your life and moving from the country to the city. Things in the MySQL world are often just done differently than they are in the Oracle world. Our guide will give you a birds eye [...]

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Oracle to MySQL Migration Considerations

Sean Hull — Wed, 02 Mar 2011 01:17:05 +0000

Read the original article at Oracle to MySQL Migration Considerations

There are a lot of forms of transportation, from walking to bike riding, motorcycles and cars to busses, trains and airplanes. Each mode of transport will get you from point a to point b, but one may be faster, or more comfortable and another more cost effective. It’s important to keep in mind when comparing [...]

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How To Build Highly Scalable Web Applications For The Cloud

Sean Hull — Thu, 30 Dec 2010 20:05:11 +0000

Read the original article at How To Build Highly Scalable Web Applications For The Cloud

Scalability in the cloud depends a lot on application design. Keep these important points in mind when you are designing your web application and you will scale much more naturally and easily in the cloud. ** Original article — Intro to EC2 Cloud Deployments ** 1. Think twice before sharding It increases your infrastructure and [...]

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Introduction to EC2 Cloud Deployments

Sean Hull — Tue, 14 Dec 2010 19:00:36 +0000

Read the original article at Introduction to EC2 Cloud Deployments

Cloud Computing holds a lot of promise, but there are also a lot of speed bumps in the road along the way. In this six part series we’re going to cover a lot of ground. We don’t intend this series to be an overly technical nuts and bolts howto. Rather we will discuss high level [...]

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5 Steps to Cloud Computing

Sean Hull — Thu, 30 Sep 2010 05:15:34 +0000

Read the original article at 5 Steps to Cloud Computing

Believe it or not you can actually start playing around with virtual servers that are as real and powerful as the physical servers you’re already used to deploying. And you can do it for literally pennies per month. Signup for an Amazon account or use the one you buy books with. Browse over to http://aws.amazon.com [...]

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5 Tips for Scalability

Sean Hull — Mon, 31 May 2010 14:00:07 +0000

Read the original article at 5 Tips for Scalability

Your website is slow but you’re not sure why. You do know that it’s impacting your business. Are you losing customers to the competition? Here are five quick tips to achieve scalability 1. Gather Intelligence With any detective work you need information. That’s where intelligence comes in. If you don’t have the right data already, [...]

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Top Five Useful Twitter Techniques

Sean Hull — Tue, 27 Apr 2010 13:00:48 +0000

Read the original article at Top Five Useful Twitter Techniques

You’ve heard all about twitter, and you may have visited the website, or used it through other tools that bring your messages from linkedin or facebook into twitter. It turns out there is a lot more to the twitter world that first meets the eye. 1. Make regular and relevant use of hashtags 2. Focus [...]

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Oracle DBA Interview Questions

Sean Hull — Thu, 01 Jan 2009 13:00:20 +0000

Read the original article at Oracle DBA Interview Questions

Oracle Database Administrator or often called DBAs are an indispensable part of your operations team. They manage the systems that house all your business data, your customers, products, transactions and all that analytical data on what customers are actually doing. If you’ve ever been on the hunt, you may wonder, why the shortage of DBAs? [...]

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MySQL DBA Interview Questions

Sean Hull — Thu, 01 Jan 2009 13:00:07 +0000

Read the original article at MySQL DBA Interview Questions

One of the more popular articles on our site according to Google is the Oracle DBA Interview Questions article we did a few years ago. So with that in mind, we’ve put together a similar article for MySQL DBA Interviews. 1. Explain two ways that MySQL Replication can get out of sync. What are the [...]

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Karma – Oracle Database Monitoring

Sean Hull — Thu, 10 Jan 2008 13:00:04 +0000

Read the original article at Karma – Oracle Database Monitoring

The karma project is no longer maintained. If you’d like more information about Oracle Consulting please visit our Oracle Professional Services page. Related posts:otop – diy monitoring of your Oracle database

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otop – diy monitoring of your Oracle database

APress – Cost-Based Oracle by Jonathan Lewis

Sean Hull — Thu, 03 Jan 2008 13:07:23 +0000

Read the original article at APress – Cost-Based Oracle by Jonathan Lewis

The beauty of reading a book by a publisher not sanctioned by Oracle and by an author who doesn’t work for Oracle is that they can openly mention bugs. And there are oh-so-many! This book is a superb introduction to the Cost Based Optimizer, and is not afraid to discuss it’s many shortcomings. In so [...]

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APress – Expert Oracle DB Arch by Tom Kyte

Sean Hull — Tue, 01 Jan 2008 13:05:47 +0000

Read the original article at APress – Expert Oracle DB Arch by Tom Kyte

I have a confession to make. I haven’t read an Oracle book cover-to-cover in almost three years. Sure I skim through the latest titles for what I need and of course check out documentation of the latest releases. That’s what good docs provide, quick reference when you need to check syntax, or details of a [...]

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Dummy’s Guide to Linux firewalls

Sean Hull — Tue, 01 Jan 2008 13:04:28 +0000

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Security experts will probably tell you it’s not a good idea to be a dummy and also in charge of your own firewall. They’re probably right, but it’s a catchy title. In this article, I’ll quickly go over some common firewall rules for iptables under linux. First things first. If you don’t have the right [...]

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Oracle & Open Source Projects – The Interviews

Sean Hull — Tue, 01 Jan 2008 13:00:37 +0000

Read the original article at Oracle & Open Source Projects – The Interviews

Back in 2000 I recall searching for Open Source projects to cover in the book I wrote Oracle and Open Source. My co-author and I found seven web-based applications, a few with Perl and Tcl, four Java tools, and five GTK applications. A search for the keyword “Oracle” on freshmeat a popular Open Source project [...]

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Tools for the Intrepid DBA

Sean Hull — Tue, 01 Jan 2008 13:00:37 +0000

Read the original article at Tools for the Intrepid DBA

Dear intrepid DBAs, as you go about your day-to-day work, and struggle with requests from every direction take heed of some of these tools and tips and it just might give you enough time for a long lunch, or better yet, a trouble free vacation! 1. Tools to Help You Take a look at some [...]

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Oracle 10g RAC Versus DataGuard For High Availability

Sean Hull — Tue, 01 Jan 2008 13:00:37 +0000

Read the original article at Oracle 10g RAC Versus DataGuard For High Availability

Oracle has two very different technologies, each with it’s own strengths and weaknesses that implement high availability solutions. In choosing between the two technologies, it’s important to factor in the relevant risks, both small and large, to put the entire picture into perspective. Two Alternatives RAC or Real Application Clusters, is essentially an always-on solution. [...]

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MySQL Disaster Recovery

Sean Hull — Tue, 01 Jan 2008 13:00:31 +0000

Read the original article at MySQL Disaster Recovery

Like all databases, MySQL needs a disaster recovery plan. In this article we discuss some specific experiences at a client site where disk errors began to cause database problems, and how the disk was replaced, and the database recovery process. Introduction MySQL is a great database, and for this client, 2000 subscribers and an average [...]

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Oracle 9iRAC – Clustering on Linux/Firewire

Sean Hull — Tue, 02 Jan 2007 04:54:37 +0000

Read the original article at Oracle 9iRAC – Clustering on Linux/Firewire

Introduction Ever since the announcement of Oracle 9i, Oracle’s Real Application Clustering feature has created quite a stir. For those not familiar, 9iRAC is a complete overhaul of Oracle Parallel Server (OPS) from previous versions of the database into a workable product. For many DBA’s, however, this technology is completely out of reach. Without an [...]

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Part 2: RAC/Linux/Firewire – Basic Costs + Hardware Platform Outline

Sean Hull — Tue, 02 Jan 2007 04:54:37 +0000

Read the original article at Part 2: RAC/Linux/Firewire – Basic Costs + Hardware Platform Outline

Basic Costs + Hardware Platform Outline In my test environment, I bought the following equipment. Note that although RedHat Advanced Server seems to be required, I worked with the development team to get it working without that distribution, and included RPMs. If you want to get a copy, get the developer release. I listed that [...]

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