Quickstart: gathering an iManager dclient debug log

  • 7025251
  • 16-Aug-2021
  • 18-Aug-2021

Environment

iManager 3.2
eDirectory 9.2

Situation

Dclient works as a client on every eDirectory server.  This allows server to server communications such as when chaining to another server on behalf of a LDAP request. 

There are times that an error or error condition is encountered while using a plugin within iManager.  At times the actual error returned to iManager from a server cannot be seen server-side (ndstrace).  This is when a dclient debug log can be useful to show what the client (plugin + dclient) sees.

Resolution

Below are the steps to perform based on whether the server is running standalone iManager server or iManager on the OES platform.


Standalone (iManager runs as novlwww):

1) Create a directory for the log: IE., /var/opt/novell/novlwww/dclient

2) Create a file named dlclient.log in the directory created above.

3) Assign novlwww owner permissions to the dclient folder and the dclient.log file.

mkdir /var/opt/novell/novlwww/dclient
chown novlwww:novlwww /var/opt/novell/novlwww/dclient
touch /var/opt/novell/novlwww/dclient/dclient.log
chown novlwww:novlwww /var/opt/novell/novlwww/dclient/dclient.log

4) In the script /opt/novell/tomcat7/bin/dtomcat7 or /opt/novell/tomcat9/bin/dtomcat9 add the environment variable DCLIENTDEBUG which will point to a file inside the directory created with the first step.
Place it below these two lines as shown below:

TOMCAT_CFG="/etc/opt/novell/tomcat9/tomcat9.conf"
JAVADIR="/opt/netiq/common/jre"
export DCLIENTDEBUG="/var/opt/novell/novlwww/dclient/dclient.log"

5) Stop and start Tomcat.  Do not restart it or the variable will not be read.
systemctl stop novell-tomcat9-service.service
systemctl start novell-tomcat9-service.service



OES 2018 (iManager runs as user wwwrun):

 1) Create a directory for the log: /var/lib/wwwrun/dclient

 2) Create a file named dclient.log in this directory.

 3) Assign wwwrun and group www owner permissions to the dclient folder and to the dclient.log file.
mkdir /var/lib/wwwrun/dclient
chown wwwrun:www /var/lib/wwwrun/dclient
touch /var/lib/wwwrun/dclient/dclient.log
chown wwwrun:www /var/lib/wwwrun/dclient/dclient.log

4. Edit the /etc/opt/novell/tomcat/conf/novell-tomcat.conf file and add the variable as shown below:

#
LD_LIBRARY_PATH="/usr/lib64${LD_LIBRARY_PATH+:$LD_LIBRARY_PATH}"
export LD_LIBRARY_PATH
#
DCLIENTDEBUG="/var/lib/wwwrun/dclient/dclient.log"
export DCLIENTDEBUG
#

5. Stop Tomcat and Apache and then start them up again.  Do not restart or perform this any other way or the environment variable will not be read.
systemctl stop novell-tomcat.service
systemctl stop apache2.service
systemctl start novell-tomcat.service
systemctl start apache2.service   

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