Enabling and configuring Full Text Search for Smart IT
Before you begin
To perform configurations for Knowledge Management, you need Knowledge Config permissions.
To enable Full Text Search
FTS is installed by default with the Action Request System. FTS search across multiple forms is required for Smart IT, but is enabled by default. To enable Full Text Search, perform the following tasks:
Task | Description | Reference |
|---|---|---|
1 | Configure the Action Request System server for FTS | |
2 | Index fields for FTS. |
FTS configuration options
Many configuration options are available for FTS. The following table lists a subset of these options. For information about how to set these options and for other options, see the reference links.
Option | Description | Reference |
|---|---|---|
Full Text Search Threshold | The maximum number of search results returned from the search engine. The default value is 10,000. To limit the number of search results (because of constraints on the computer where the search engine is running), reduce the threshold. | |
Complex Search Threshold | During the processing of search results, the server combines results from subqueries to arrive at the final result set. If the number of rows created during processing exceeds this value, the server returns an error message indicating that the search is too complex. The default value is 1,000,000. |
FTS search is performed only in those forms that are requested, for example, HPD:Help Desk, RKM:HowTo and Smart IT sends a list of forms that are relevant. In case of multiple forms, FTS does not differentiate between forms for relevance.
Relevance and sorting depend on the Lucene algorithm of TF-IDF (Term frequency – Inverse Document Frequency). This means, it pushes those entries where the term frequency is high or where the term matches more number of times in the record. It also pushes those entries where the number of matches out of the total documents is less.