Accessing application log files

Log files are grouped by using the following rules:

  • IBM Process Mining application logs
  • Categories
  • Rolling Policy

Log files grouped by IBM Process Mining application logs can be sorted as, for example, REST API monitoring, application errors, or configuration errors.

Categories

You can access application log files grouped by following categories:

  • Front-end and Rest API

    • <PM_HOME>/repository/logs/pm-app-web.log
    • <PM_HOME>/repository/logs/pm-app-analytics.log
    • <PM_HOME>/repository/logs/pm-app-bpa.log
    • <PM_HOME>/repository/logs/pm-app-connectors.log
    • <PM_HOME>/repository/logs/pm-app-user-management.log

  • IBM Process Mining backend

  • Process discovery backend

    • <PM_HOME>/repository/logs/pm-engine-process-discovery.log
    • <PM_HOME>/repository/logs/engine-perf.log

  • BPA backend

    • <PM_HOME>/repository/logs/pm-engine-bpa.log

  • Analytics backend

    • <PM_HOME>/repository/logs/pm-engine-analytics.log
    • <PM_HOME>/repository/logs/analytics-perf.log

  • Accelerator backend

    • <PM_HOME>/repository/logs/pm-accelerator-core.log
    • <PM_HOME>/repository/logs/pm-accelerator-sap-p2p.log
    • <PM_HOME>/repository/logs/pm-accelerator-custom.log
    • <PM_HOME>/repository/logs/pm-accelerator-custom-std.log
    • <PM_HOME>/repository/logs/pm-eureka.log

  • Connectors backend

    • <PM_HOME>/repository/logs/pm-engine-connectors.log

  • Decision rules backend

    • <PM_HOME>/repository/logs/pm-engine-decision-rules.log

  • Monitor backend

    • <PM_HOME>/repository/logs/monitoring-perf.log
    • <PM_HOME>/repository/logs/pm-engine-monitoring.log

Rolling Policy

Files are archived daily by following a rolling policy as shown in the following example:

pm-app-web-2024-04-22.0.log

The file storage period is 30 days.
The maximum file size is 50 MB.

Log Settings

The application logs settings are available in the following files:

  • /etc/logback-web.xml
  • /etc/logback-engine.xml
  • /etc/logback-analytics.xml

You can change the log retention period by changing the maxHistory variable.
You can change the maximum file size by changing the maxFileSize variable in the application logs settings files.

The <logger> element contains the log level with the following possible values:

  • ERROR
  • WARN
  • INFO
  • DEBUG

Only set the log level under INFO value in the production environments if necessary.

You can access logs to the following servers:

  • Application Server logs
    • <PM_HOME>/jetty-web/logs/
    • <PM_HOME>/jetty-engine/logs/
    • <PM_HOME>/jetty-analytics/logs/

You can use these logs to learn about:
- Problems with binding ports.
- Java version.
- Generic errors.

  • Web Server logs
    • /var/log/nginx/access.log
    • /var/log/nginx/error.log

You can use these logs to:
- view NGINX settings.
- monitor web access.