.. _section-Sunflower Logging:

Sunflower Logging
~~~~~~~~~~~~~~~~~

To change the logging level used in the **Sunflower** diagnostics log, from the main navigation menu select **Window >> Preferences**, expand **Sunflower Preferences**, then select **Sunflower Logging**. A list of log4j properties will be displayed in a text window, as shown in :numref:`figure-Sunflower-GUI-customize-sunflower-logging.png`.  Click anywhere inside the text window to enter edit mode.  While in edit mode, both the mouse and the arrow keys can be used for positioning the input cursor.  Click **Apply** then **OK** to save all edits.

Note that these settings are primarily meant for **Sunflower** developers to debug issues with the system.  After changing the settings, **Sunflower** must be restarted in order for the new settings to take effect.  By default, the log is named sunflower.log, and is located in the user's home directory (C:\UserName in Windows for example), under subfolder .sunflower.

.. _figure-Sunflower-GUI-customize-sunflower-logging.png:

.. figure:: ../../figs/Sunflower-GUI-customize-sunflower-logging.png
   :alt: Customizing log4j settings for diagnostics outputs in sunflower.log

   Customizing log4j settings for diagnostics outputs in sunflower.log