Updating an index

Run an index update when you want to update or rebuild an index. For example, you have new objects that require indexing or deleted objects that should be removed from the index. Also, you must run an index update if you want to set data collection options for including or excluding data.

To execute index update tasks, you must have execute permissions for the Administration tasks secured feature and traverse permissions for the Administration secured function. For more information, see Secured Functions and Features and Initial access permissions.

Procedure

In IBM Cognos Administration, on the Configuration tab, click Content Administration.
For the Index Update task, in the Actions column, click the run with options icon.
On the Run with options page, click Now or Later.
- Now runs the index update immediately
- Later runs the index update at a specified time. Enter the date and time that you want the index update to run.
You can also schedule a task to run on a recurring basis, and view a list of scheduled tasks. For more information, see Schedule Management.

Under Content Options, specify the information to collect for the content that is included in the index. You must select one or more of the content options. Note that including actual data values enables the most thorough searching, but it also requires additional processing and consumes more space.

Table 1. Index content options
Options	Description
Properties and metadata	For objects within the scope of the indexing task and objects selected as "Indexable Types", specifies that the object properties, related objects (for example, output), and metadata are indexed.
Data values - Referenced data	Specifies that only data referenced by the expressions encountered in reports, queries, and analyses that are included in the scope of the indexing task are indexed. Model objects in the selected content are ignored.
Data values - All data	Specifies that all data encountered in the models that are in the scope of the indexing task are indexed.

If you choose to include data values in the index, you can set additional data collection parameters to govern data collection. For information about these parameters, see Managing data collection

Under Scope, select whether to update the existing index or to rebuild the index.
You can specify whether to index only entries that have changed since the last time the indices were updated, or to rebuild the indices for all entries.
Click Run.