Understanding stale parameters

Whenever we change the definition of a view, the entire view is recreated. In order to minimize overhead, ensure that you verify the logic of the view at the development stage before moving it to production, since it works on sample documents of the bucket. Subsequent changes to documents are taken care of by performing incremental MapReduce on the changed documents only. There is a mechanism for updating views conditionally when the client executes a view query by specifying the stale parameter. The indexes information stored on the disk consist of a combination of both key and value information defined within your view. There are three values of the stale parameter:

• update_after: This is the default value if nothing is specified. When a client executes a view with a stale value as update_after, the result will be served with index documents that is on the disk, and subsequently Couchbase will start performing an incremental view rebuild for those documents...