Collection maintenance options

-backup dir

Backs up the collection into the specified directory. The backup does not include the tde subdirectory. The tde subdirectory is created by and for Topic Document Entry if Topic Document Entry is used to create or maintain the collection.

-repair

Repairs the collection, performed by an API call.

-purge

Waits the amount of time specified by the -purgewait option and then deletes all documents in the collection, but not the collection itself. It leaves the collection directory structure intact.

To specify a different wait period, use the -purgewait option instead of the
-purge option. If you do not use the -purgewait option, the default is 600 seconds.

-purgeback

Used with the -purge option, performs a purge in the background.

-purgewait sec

Specifies to the -purge option how many seconds to wait. If you do not specify sec, the default is 600.

-noservice

Prevents collection servicing, which includes indexing, by this instance of the mkvdk command, performed by an API call.

-persist

Services the collection repeatedly, at default intervals of 30 seconds. Use the
-sleeptime option to set a different interval.

-sleeptime sec

Specifies the interval between service calls when the mkvdk utility is run with the -persist option.

-optimize spec

Performs various optimizations on the collection, depending on the value of spec. The specifier, spec, is a string consisting of keywords separated by hyphens, such as maxmerge-squeeze-readonly. For valid keywords, see Optimization keywords.

-noexit

Windows only. Causes the I/O window to remain after the program is finished. By default, the window closes and the program exits, so that scripts calling the mkvdk utility do not hang.