Karthick P.K on SQL Server

Archive for July, 2011

My “c:\” Drive gets full when I open the profiler trace

Posted by Karthick P.K on July 16, 2011

Profiler filling up space of my system drive…….

When you run the profiler trace (GUI) or open the saved profiler trace file your System Drive gets out of space

SQL Server profile uses ‘TMP’ Environment variable for storing the .Trc and trace replay files


By default TMP directory points to your system drive, so when we open a large profiler trace file or capture trace in GUI mode system drive gets full.

We can workaround this by changing the TMP environment variable. Changing TMP environment variable system wide can cause other issues so I would recommend changing TMP temporarily for the process

1. Open command prompt



2. Open the profiler from command prompt

>Profiler90.exe         –>SQL Server2005

>Profiler.exe             –>SQL Server2008

>Mysavedtracefile.trc –>Open a saved tracefile


This would make profiler use G:\TMP  for saving temporary data. So your c:\ would never get full.

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