Indexing

Storing the words and properties extracted by the CiDaemon process in indexes is referred to as indexing. An index is a special data structure that is used to satisfy queries efficiently.

As documents in the corpus (usually a Web site) are modified, the indexing program is notified of the updates and those documents enter a change queue. The CiDaemon process retrieves documents from the change queue in “first-in-first-out” order and filters them. The resulting words and properties are then added to the index. If there are many documents waiting in the change queue, there will be a delay before the index has up-to-date information about those documents.

This section contains:

• Understanding Indexes: Explains the three types of indexes that Index Server creates.
• Merging Indexes: Describes how data from multiple indexes is combined into one index.
• Index-Related Performance Counters: Lists counters present under the Content Index object.
• Handling Failures: Defines types of failures and tells how to recover indexes after a failure.
• Caching Property: Describes the storage area on your disk that speeds up the retrieval of frequently queried values.

© 1997 by Microsoft Corporation. All rights reserved.