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James is a big data and data warehousing technology specialist at Microsoft. He is a thought leader in the use and application of Big Data technologies, including MPP solutions involving hybrid technologies of relational data, Hadoop, and private and public cloud. Previously he was an independent consultant working as a Data Warehouse/Business Intelligence architect and developer. He is a prior SQL Server MVP with over 30 years of IT experience. James is a popular blogger ( and speaker, having presented at dozens of PASS events including the PASS Business Analytics conference and the PASS Summit. He is the author of the book “Reporting with Microsoft SQL Server 2012”. He received a Bachelor of Science degree in Computer Engineering from the University of Nevada-Las Vegas.

SQL Server 2012 SP1 Causes MsiInstaller Application Log Entries

After installing SP1 to SQL Server 2012 (11.0.3000) on one of our servers, I noticed higher than normal CPU loads due to msiexec.exe running non-stop.  The cpu percentage would bounce from 0% to 13%, and the application log would have five new entries about MsiInstaller and RestartManager about every 30 seconds.  There is a Connect bug about it at msiexec.exe processes keep running after installation of SQL Server 2012 SP1, and a fix has just been released at Non Security Update for SQL Server 2012 SP1 (KB2793634).

After installing the fix, SQL Server will be at version 11.0.3128, you will no longer see msiexec.exe running, those log entries will stop, and your CPU usage will drop.

More info:

SQL Server 2012 SP1 – Endless MsiInstaller Application Log Entries


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