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SQL 2008/2008 R2/2012 setup disappears/fails when installing Setup Support files
I’m sure many of you would have seen this issue when running SQL 2008/2008 R2/2012 setup on a new server. The setup will proceed to install Setup support files, the window will disappear but, strangely...
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SQL Server Cluster Failover Root Cause Analysis–the what, where and how
I know many of you get into situations where SQL Server fails over from one node of a cluster to the other, and you’re hard-pressed to find out why. In this post, I shall seek to answer quite a few...
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Why the registry size can cause problems with your SQL 2012 AlwaysOn/Failover...
I recently worked on a very interesting issue, where one of the cluster nodes in an AlwaysOn environment became unstable, and the administrators ended up evicting the node from the Windows cluster as...
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How To : SQL 2012 Filetable Setup and Usage
One of the cool things about my job is that I get to work on the latest technologies earlier than most people. I recently stumbled upon an issue related to Filetables, a new feature in SQL Server 2012....
View ArticleAn in-depth look at SQL Server Memory–Part 3
In part 1 and part 2 of the series, we talked about the memory architecture and the Procedure Cache respectively. In this third and final instalment of the SQL Server Memory series, I will look to...
View ArticleWhy the service account format matters for upgrades
I’ve seen this issue a few times in the past few months, so decided to blog about this. When upgrading from SQL 2005 to SQL 2008/SQL 2008 R2 (or even from SQL 2008 to SQL 2008 R2), you might face an...
View ArticleAn interesting issue with SQL Server Script upgrade mode
Here’s another common issue that I’ve seen quite a few people run into of late. When you run a patch against SQL Server, the patch installs successfully, but on restart, SQL goes into “script upgrade...
View ArticleHow To: Troubleshooting SQL Server I/O bottlenecks
One of the most common reason for server performance issues with respect to SQL Server is the presence of an I/O bottleneck on the system. When I say I/O bottleneck, it can mean issues like slow disks,...
View ArticleSQL Server patch fails with "Could not find any resources appropriate for the...
I recently worked on a number of issues where SQL Server Service Pack/patch installation would fail, and we would see this error in the relevant Detail.txt (located in C:Program FilesMicrosoft SQL...
View ArticleSQL 2012 Availability Group does not come up on one instance
I recently came across this interesting issue with SQL 2012 Always on Availability Groups, wherein after the network and IP were changed, the AG would not come up on one of the instances. We checked...
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When using SSL, SQL Failover Cluster Instance fails to start with error 17182
I recently worked on an interesting issue with a SQL Server Failover Cluster Instance (FCI). We were trying to use an SSL certificate on the instance, and we followed these steps: Made sure the...
View ArticleSomething to watch out for when using IS_MEMBER() in TSQL
I recently worked on an interesting issue with my good friend Igor (@sqlsantos), where we were facing performance issues with a piece of code that used the IS_MEMBER () function. Basically, the...
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An interesting issue with Peer to Peer Replication
I recently ran into an interesting issue when setting up Peer 2 Peer Replication across 3 instances. The primary instance was SM-UTSQL, where we configured a Peer-to-Peer publication named "PUBLISH1"...
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An In-depth look at memory – SQL Server 2012/2014
I finally had some time on my hands, so thought to try and get around to blogging about the memory architecture of SQL server 2012/2014. The memory architecture for the SQL Server relational database...
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