Pega log
 The Pega log, also known as the console log or system log, contains error messages,
    debug messages, information messages, and Java-related diagnostics that have been created since
    the server was most recently started. The Pega log uses the naming format
      PegaRULES-YYYY-MMM-DD.log, where the date portion of the name indicates the
    date the application server was recently started (on the current node).