In a standard archive-based installation of the Pentaho Server with default settings, logging is configured to write to files instead of a database. The primary application log file, which contains detailed execution information for PDI jobs run by the scheduler, is pentaho.log. The default location for this file and other Tomcat-related logs (e.g., catalina.out) is the pentaho-server/tomcat/logs directory. This location is defined by the log4j2.xml configuration file, which is the standard for managing Pentaho application logs.

B. The path pentaho-service/data suggests a containerized or service-based deployment, not the "archive-based installation" specified in the question.

C. The pentaho-server/pentaho directory is part of the web application's structure but is not the designated directory for log file output.

D. These paths point to the underlying Karaf OSGi container's logging system, which handles bundle and service-level logs, not the primary Pentaho application and PDI job execution logs.

1. Hitachi Vantara Documentation

Pentaho 9.3

"Set Up Logging for the Pentaho Server": This official guide details that the Pentaho Server's logging behavior is controlled by the log4j2.xml file located at pentaho-server/tomcat/webapps/pentaho/WEB-INF/classes/. The default configuration in this file for the PENTAHOFILE appender specifies the output directory for pentaho.log. In a standard archive installation

this resolves to pentaho-server/tomcat/logs.

2. Hitachi Vantara Documentation

Pentaho 9.3

"Monitor System Health": This document instructs administrators to check the pentaho.log and catalina.out files for troubleshooting server issues. It implicitly confirms their location within the Tomcat log directory (pentaho-server/tomcat/logs) as the primary place to investigate application behavior

including job executions.