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How To Trace SQL Generated by Mondrian


Case

There is a weird analysis look in your Mondrian's Pivot table and you suspect that there may be something wrong in your Schema but where ? 

One and maybe the best way to trace it is to look at the detail of SQL queries generated by Mondrian / Pentaho Analysis. So here's how to do it.

Solution

  • Edit file [BI-SERVER FOLDER]/tomcat/webapps/pentaho/WEB-INF/classes/log4j.xml
  • Remove any remark / comment surrounding SQLLOG appender. You can find it near the end of log4.xml file.



  • Done

Trace SQL generated from Pentaho Log File 

  • Restart your BI Server
  • Try to open one of your BI solution that will trigger an MDX execution. For example a pivot view .XAction


  • Open [BI-SERVER]\tomcat\bin\pentaho.log file. You can now see SQL generated by executing a related MDX query.


  • Done

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