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Where is my SQL Error log?

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Today I found a new (for me), undocumented method for identifying the location of the SQL Error log.  I knew you could either check the registry or use SQL Server Configuration Manager and the "startup parameters" option.  I ran SQL Profiler while opening up a SQL Error log in SQL Server Management Studio and found that SERVERPROPERTY has an option called 'ErrorLogFileName', as demonstrated here:

SELECT SERVERPROPERTY('ErrorLogFileName')

Again - you won't find it in Books Online, so it is officially undocumented with all the risks that implies - but useful for large environments where you're not always sure where the error logs reside and need to collect them directly for root cause analysis.

Comments

  • Anonymous
    May 31, 2010
    Thanks!

  • Anonymous
    September 22, 2010
    Another option would be executing XP_READERRORLOG. The result (5th row)  will contain the full path of the error log file.