Modify a process ​.config file

Troubleshoot PI Analysis Service with provided .config file for each process in the installation.

Note: Any changes made to a process .config file are overwritten with product upgrades.

1. Navigate to %PIHOME64%\Analytics or%PIHOME%\Analytics.

2. Open a .config file of the process in an editor. For example, open PIAnalysisProcessor.exe.config file to troubleshoot issues with real-time calculations.

3. Find the rules section.

4. Find the log associated with an area of interest based on the name; for instance, for general logging: <logger name="OSIsoft.AN*" minlevel="Info" writeTo="logfileAsync" />

5. Change the value for minlevel to the logging level you want for this service.

   The levels in order of decreasing severity/increasing verbosity are Fatal, Error, Warn, Info, Debug, and Trace. In most cases, Debug is sufficient to capture troubleshooting information.

6. Save the .config file.

   PI Analysis Service does not need to be restarted to initiate the change to the logging level. Message logs will be written to the default %ProgramData%\OSIsoft\PIAnalysisNotifications\Logs folder.