Optimization keywords

maxclean

Performs the most comprehensive housekeeping possible, and removes out-of-date collection files. Macromedia recommends this optimization only when you are preparing an isolated collection for publication. When using this type, if the collection is being searched, files sometimes get deleted too early, which can affect search results.

maxmerge

Performs maximal merging on the partitions to create partitions that are as large as possible. This creates partitions that can have up to 64000 documents in them.

readonly

Marks the collection as read-only and unchanged after the function call is done. This is appropriate for CD-ROM collections.

spanword

Creates a spanning word list across all the collection's partitions. A collection consists of numerous smaller units, called partitions, each of which includes a word list. Optionally, a spanning word list can be built with an ngram index.

ngramindex

Builds an ngram index for the collection. An ngram index is designed to improve the search performance for queries with the <TYPO> and <WILDCARD> operators. An ngram index cannot be built without a spanning word list. You can build a spanning word list and ngram index in the same command, for example:

mkvdk -collection collname -optimize spanword -ngramindex

squeeze

Squeezes deleted documents from the collection. Squeezing deleted documents recovers space in a collection, and improves search performance. (For more information about squeeze, see About squeezing deleted documents.) Using this option invalidates the search results.

vdbopt

Configures the collection's Verity databases (VDBs). Each collection consists of smaller units called VDBs. This keyword has the effect of linearizing the data in a VDB, and making the collection metadata contained in the VDB more streamlined. It also lets the VDB grow to a much larger size.

tuneup

Performs the same as combining the maxmerge, vdbopt, and spanword keywords.

publish

Performs the same as all of the optimization types combined. Use this keyword to optimize the collection for the best possible retrieval performance, such as for publication to a network on a server or on a CD-ROM.