When you encounter a Redis instance and you quickly want to learn about the setup you just need a few simple commands to peak into the setup. Of course it doesn’t hurt to look at the official full command documentation, but below is a listing just for sysadmins. [Read More]

The .NET Framework 4 introduces five new collection types that are specially designed to support multi-threaded add and remove operations. To achieve thread-safety, these new types use various kinds of efficient locking and lock-free synchronization mechanisms. Synchronization adds overhead to an operation. The amount of overhead depends on the kind of synchronization that... [Read More]

The SQL Server transaction log contains the history of every action that modified anything in the database. Reading the log is often the last resort when investigating how certain changes occurred. It is one of the main forensic tools at your disposal when trying to identify the author of an... [Read More]

Error handling in T-SQL traditionally has been a sort of misterious voo-doo for most developers, with it’s mixture of error severities, SET settings like XACT_ABORT, ARITHABORT or ARITHIGNORE and the options to handle the error on the server or at the client. For a long time now the best resource... [Read More]

This document provides prescriptive guidance about how Application Request Routing (ARR) can be used with Network Load Balancing (NLB) to achieve high availability and scalability [Read More]