When it comes to troubleshooting in relational databases, there's no better place to start than wait statistics. In a nutshell, a wait statistic is an internal counter that tells you how long the database spent waiting for a particular resource, activity, or process. Since wait statistics are categorized by type, one look will quickly tell the variety of problem that needs your attention, assuming you know meaning for Microsoft's lingo for each wait type. (As an aside, wait stats were implemented in the earliest days of relational database computing because the early RDBMSes ran on … [Read more...]
Wait Statistics in SQL Server
Filed Under: Databases, On-Line Resources, Performance, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: DBA, Monitoring, Performance, SQL Server 2012, Tools, Wait Stats
Now Playing on SSWUG TV!
Hi friends, I know a lot of you regularly read my blog either on my home page at KevinEKline.com, on SQLBlog.com, or one of the locations where it's syndicated. And you may also regularly take in my content on SQLSentry.TV or my monthly column on Database Trends & Applications magazine. Click the image to see my new weekly video series on SSWUG.org! Now I'm adding a new video format to the mix, in partnership with my friend Steven Wynkoop and SSWUG.org. I've been a frequent speaker in the SSWUG virtual conferences over the past several years and, we thought, why not … [Read more...]
Filed Under: Administration, Architecture, Cool Technologies, Databases, On-Line Resources, Opinion, Professional Development, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: Best Practices, Business Intelligence, cloud computing, DBA, Developer, Leadership, Management, Professional Development, SQL Server 2012
Windows Azure and SQL Database News
This morning Microsoft released some great updates to Windows Azure. These new capabilities include: SQL Server AlwaysOn Support: General Availability support with Windows Azure Virtual Machines for High Availability and Disaster Recovery Notification Hubs: General Availability Release of Windows Azure Notification Hubs (broadcast push notifications for Windows 8, Windows Phone, iOS and Android) AutoScale: Schedule-based AutoScale rules and richer logging support Virtual Machines: Load Balancer Configuration and Management Management Services: New Portal Extension for Operation … [Read more...]
Filed Under: Cloud, Databases, On-Line Resources, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: Azure, Backup & Recovery, cloud computing, DBA
New on DBTA.com: Database Benchmarking Tools, the final article in the database benchmarking series
In the last several articles on Database Trends & Applications, I've been describing the benefits of reading and analyzing the benchmarking case studies released by the Transaction Processing Council. I've given you from a broad overview of the TPC benchmarks and shown ways that the vendor-published TPC benchmarks can help you save money and how the vendor-published TPC benchmarks must explain in disclaimers how they tweak their workloads. I have described how to run your own benchmarks and explained how to properly prepare your environment for a benchmark test. Pictured (L-R): Scott … [Read more...]
Filed Under: Administration, Architecture, Cool Technologies, Databases, DBTA, Hardware, IO, Opinion, Performance, Professional Development, SQL Server, SQLMag, SQLServerPedia Syndication, Strategies Tagged With: Benchmarking, Best Practices, Career, DBA, Performance, Tools, Tools & Scripts
My Advice About Growing as an IT and Data Professional
First off, I should apologize for not blogging in quite a while. I've been traveling extensively and, because traveling can be so exhausting, I usually have to queue up blog posts to hit while I'm traveling in order to remain active while on the road. I didn't do that for these most recent trips. And, as you can see, there's quite a gap between this post and my last few posts. On the other hand, I've experienced an unexpected surge in requests for mentoring and advice from friends and colleagues about career growth. I'm always happy to help out a friend and, in fact, there's little in my … [Read more...]
Filed Under: Challenges, Interviews, Opinion, Professional Development, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: Career, DBA, Developer, Leadership, Management, Plays Well With Others, Professional Development, Writing
MySQL, NoSQL, and NuoDB
I've been keen on MySQL ever since I first started using it heavily more than a decade ago. In fact, I liked it well enough to include it as one of the four main database platforms, over and above the ANSI-ISO SQL standard, in my popular book SQL in a Nutshell. However, with the advent of NoSQL data platforms in the last few years, the waters have been muddied. It's no longer a quick easy decision as to which database platform you should use, both because there are many new platforms to choose from and because the old, easy choices aren't as cut and dried as they used to be. MySQL, for … [Read more...]
Filed Under: Cloud, Cool Technologies, Databases, NoSQL, Opinion, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: Azure, cloud computing, DBA, MySQL, Oracle, sql, SQL Programming
Cheaters Never Win, Even in TPC Benchmarks
In this column, I want to tell you about one of my favorite aspects of the TPC benchmarks – CHEATING. Keep in mind that I use the term “cheating” in a joking manner with my tongue planted firmly in my cheek. But I’m also half-serious. One of the of the things that is great about the TPC benchmarks is that each of the vendors are required to fully describe all of the shortcuts, tweaks, and special operating configurations they use in order to achieve their spectacular performance numbers. In a sense, the Transaction Processing Counsel requires that all benchmarked platforms declare all of … [Read more...]
Filed Under: Administration, Challenges, Databases, DBTA, Performance, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: Best Practices, DBA, DBTA, Monitoring, Oracle, Performance, SQL Server 2012
Use TPC Database Benchmarks to Save Money
Last month, I began a series of articles describing database application benchmarking. In the first article, I told you about different ways that you can construct your own database application benchmark. However, you don’t have to reinvent the wheel. The Transaction Processing Council (www.tpc.org) has already created a large number of database benchmarks that are extremely useful and informative. I also described last month how the TPC provides several different types of benchmark tests. For example the TPC-C and TPC-E benchmarks are extremely useful for measuring transaction throughput. … [Read more...]
Filed Under: Administration, Challenges, Databases, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: Best Practices, DBA, DBTA, Oracle, Performance, SQL Server 2012
Read the New TPC Database Benchmarking Series
Introduction to TPC Database Benchmarks Let's talk about database application benchmarking. This is a skill set which, in my opinion, is one of the major differentiators between a journeyman-level DBA and a true master of the trade. In this article published in my monthly column at Database Trends & Applications magazine, I'll give you a brief introduction to TPC benchmarks and, in future articles, I'll be telling you how to extract specific pieces of valuable information from the published benchmark results. But let's get started with an overview … read … [Read more...]
Filed Under: Administration, Challenges, Databases, Performance, SQL Server, SQLMag, SQLServerPedia Syndication Tagged With: Best Practices, DBA, Oracle, Performance, SQL Server 2012
PASS Business Analytics Conference (BAC) Recap
The PASS Business Analytics Conference (PASS BAC) is PASS' first foray into an event that is dedicated to business intelligence, big data, data visualization, and business analytics. And it totally makes sense for PASS to move in this direction, over and above the flagship community work centered on database management and application development. Why? Because business analytics is all about how to apply the data being collected and managed by all of those developers and DBAs. And, at the end of the day, how we use and apply our data is really the nexus of its value. That's what matters … [Read more...]
Filed Under: Business Analytics, Business Intelligence, Conferences, Databases, On-Line Resources, PASS, SQL Server, SQLMag, SQLServerPedia Syndication, Trends Tagged With: Business Analytics, Business Intelligence, DBA, Developer, SQL Server 2012
