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Sun Cluster 3.1 Data Service for Apache Tomcat Guide

How to turn debug on for Sun Cluster HA for Apache Tomcat

Use the information in this section to understand how to switch debug on for Sun Cluster HA for Apache Tomcat.

Sun Cluster HA for Apache Tomcat can be used by multiple Apache Tomcat instances. However, it is possible to turn debug on for all Apache Tomcat instances or a particular Apache Tomcat instance.

The Apache Tomcat component has a DEBUG file under /opt/SUNWsctomcat/etc.

This file allows you to switch debug on for all Apache Tomcat instances, or for a specific Apache Tomcat instance on a particular node in a Sun Cluster. If you require debug to be switched on for Sun Cluster HA for Apache Tomcat across the whole Sun Cluster, you will need to repeat this step on all nodes within Sun Cluster.

Perform this step for the Apache Tomcat that requires debug output, on each node of Sun Cluster as required.

  1. Edit /etc/syslog.conf

    Edit /etc/syslog.conf and change daemon.notice to daemon.debug 


    # grep daemon /etc/syslog.conf
*.err;kern.debug;daemon.notice;mail.crit        /var/adm/messages
*.alert;kern.err;daemon.err                     operator
#

    Change the daemon.notice to daemon.debug and restart syslogd. Note that the output below, from the command grep daemon /etc/syslog.conf, shows that daemon.debug has now been set.


    # grep daemon /etc/syslog.conf
*.err;kern.debug;daemon.debug;mail.crit        /var/adm/messages
*.alert;kern.err;daemon.err                    operator
#
# pkill -1 syslogd

  2. Edit /opt/SUNWsctomcat/etc/config

    Edit /opt/SUNWsctomcat/etc/config and change DEBUG= to DEBUG=ALL or DEBUG=resource 


    # cat /opt/SUNWsctomcat/etc/config
#
# Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# Usage:
#       DEBUG=<RESOURCE_NAME> or ALL
#
DEBUG=ALL
#
    Note –

    To turn off debug, simply reverse the steps above.