Modifying the Number of Collapsed Nodes in Lineage V2 Diagrams

Applies from release V R6 (5.10.x)

This requires the SSH access to the Alation instance.

You can change the number of data nodes collapsed under the More nodes… element of the Lineage diagram for Lineage V2:

Table level

../../_images/More_nodes.png

Column level

../../_images/More_nodes_Column.png

There are two parameters in alation_conf that allow you to set the number of parent and child nodes to collapse:

Parameter

Description

num_max_parent_level_nodes_to_display

The number of nodes on the level of Table, BIReport, BIDataSource, or Dashboard to be displayed on the diagram without collapsing. The default value is 30. Overflowing data objects will be collapsed under More nodes…

num_max_child_level_nodes_to_display

The number of nodes in the child column level for each parent data object. The default value is 10. Overflowing column objects will be collapsed under More nodes…

To change the parameter values,

  1. SSH to the Alation instance.

2. Enter the Alation shell:

sudo /etc/init.d/alation shell

  1. Using the alation_conf command, set the desired values for either (or both) of the parameters:

    alation_conf alation.lineage.num_max_parent_level_nodes_to_display -s <value>
alation_conf alation.lineage.num_max_child_level_nodes_to_display -s <value>

  2. Exit the shell when done:

exit