How to Enable Apache Debug Logging

Published: 17 Apr 2018
Last modified date: 20 Jul 2023

Question

How to Enable Apache Debug Logging.

Environment

Tableau Server 2021.2 and older
Windows Server

Answer

Follow the steps below (Tableau Server 2018.2 and later):

1. Locate the httpd.conf.templ file

Default Location: C:\Program Files\Tableau\Tableau Server\packages\templates.<Version>\httpd.conf.tfl

2. Search for lines like the below:

# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit, alert, emerg.
#
LogLevel notice

3. Change the value "notice" to "debug" (without quotes)

4. Apply pending changes. This command also prompts to restart Tableau:

tsm pending-changes apply

NOTE: To disable Debug logging, change both of the above values back to "notice" (without the quotes) and restart Tableau Server.

Additional information

Occasionally Tableau Support will request Apache Debug logging information.

Debug logging can impact the performance of Tableau Server and should only be enabled when requested to do so by Tableau Technical Support.

For more information especially for Tableau Server 2020.2 and later, see Change Logging Levels.