Wednesday, February 11, 2009

Update Vs Updall


Update
Update is loaded at server startup by default and runs continually, checking its work queue for views and folders that require updating. The indexer uses modest system resources by waiting five seconds between each database update operation that is performs.

Updall
Updall is similar to Update, but it doesn't run continually or work from a queue; instead you run Updall as needed. You can specify options when you run Updall, but without them Updall updates any view indexes or full-text search indexes on the server that need updating. To save disk space, Updall also purges deletion stubs from databases and discards view indexes for views that have been unused for 45 days, unless the database designer has specified different criteria for discarding view indexes. Use the NOTES.INI setting Default_Index_Lifetime_Days to change when Updall discards unused view indexes.
Like Update, Updall rebuilds all corrupted view indexes and full-text search indexes that it encounters.
By default Updall is included in the NOTES.INI setting ServerTasksAt2, so it runs daily at 2 AM. Running Updall daily helps save disk space by purging deletion stubs and discarding unused view indexes. It also ensures that all full-text search indexes that are set for daily updates are updated.