About the Index Self-Optimization Process
The Coveo Platform 7 index features a self-optimizing process that continuously and automatically manages this index compaction. The self-optimization process does not require additional index hard disk space.
The self-optimization index process performs the following tasks:
Monitors identifiers (DocID, PersitentDocID, TermID) that become available when documents or terms are deleted from the index.
At each transaction, when a minimum number of orphan identifiers to recycle are available:
For each identifier, clears any remaining references to the identifier and reassigns the identifier to the pool of identifiers that can be used for new documents/terms.
The identifier recycling respects processing time and percentage limits to prevent overloading the indexing process. The limits are less restrictive during off-peak hours, allowing for a more aggressive self-optimization process when more Coveo server resources are available.
Note: You can define the off-peak hours for your Coveo system (see Modifying System Schedules).
Issues a message in the CES logs indicating the percentage of recycling performed.
Note: With the assistance of the Coveo Support, it is also possible to fine tune the behavior of the self-optimizing process by modifying the default value of associated parameters in the CES configuration file ([Index_Path]\Config\Config.txt).
In the case of Coveo instances with distributed indexes, the self-optimization process runs independently on each slice and on each mirror.
You can monitor the self-optimizing index process by looking at its messages appearing in the CES Console (see Using the CES Console