KB5747: Understanding the log file from MicroStrategy Narrowcast Server 9.x - 10.x Subscription Portal

Strategy Narrowcast Server 9.x - 10.x Subscription Portal has the ability to log errors into a log file.
 
In the Active Server Page (ASP) Interface, the function 'LogErrorXML' within Custom Library file 'ErrorCuLib.asp' actually logs errors in eXtensible Markup Language (XML) format in the Logs folder.
 
The Logs folder is located inside the application folder. The location by default on 64-bit machines is 'C:\Program Files (x86)\MicroStrategy\Narrowcast Server\Subscription Portal\asp\Logs'. The location by default on 32-bit machiens is 'C:\Program Files\MicroStrategy\Narrowcast Server\Subscription Portal\asp\Logs'.
 
A new log file (e.g., yyyy-mm-ddERR.log) is created every day and can be read through the 'ShowErrors.asp' page.
 
The XML structure of the log files is as follows:
<errMsg>
   <sortTime> 20010604195924 </sortTime>
   <time> 06/04/2001 7:59:24 PM </time>
   <user> (127.0.0.1) </user>
   <errID> C00452D6 </errID>
   <errDesc> Failed to open a connection to DSN 'null'. java.lang.NullPointerException null </errDesc>
   <errSrc> </errSrc>
   <file> CommonCoLib.asp </file>
   <ASPFunc> co_GetLocalesForSite </ASPFunc>
   <APIFunc> SiteInfo.getLocalesForSite </APIFunc>
   <comments> Error calling getLocalesForSite </comments>
   <errLevel> 1 </errLevel>
   <errOrigin> 1 </errOrigin>
</errMsg>
 
The parameters of the Error Log file are as follows:

• 'ConnectionInfo' - Contains the information about the current session
• 'Time' - Timestamp for when the error was logged.
• 'ErrID' - Error code to be logged. 'lErrNumber' and 'Err.number' are often used.
• 'ErrDesc' - The error description to be logged.
• 'ErrSource' - Provides the location of the error within the backend code.
• 'File' - Indicates the asp file where the function logging the error is located.
• 'ASPFunc' - The name of the function logging the error.
• 'APIFunc' - The name of the API function logging the error, if any.
• 'Comments' - A brief description of the error.
• 'ErrorLevel' - The level or severity of the error:
  
• LogLevelError: error level "1"
• LogLevelTrace: error level "2"
• LogLevelInfo: error level "4"
• LogLevelWarning: error level "8"