This configuration option is used to determine the type of commit push should use when committing documents. Depending on the commit type, it is possible to make trade-offs between commit speed and search quality.
The default value will perform annotation, spelling suggestions, auto completion processing and faceted navigation steps on each commit.
To speed up commits, a FAST mode may be used. Fast mode will index the new generation but will skip annotation, spelling suggestions, auto completion processing and faceted navigation steps instead it will use the previously generated files. When a merge or vacuum occurs this option will be ignored and those steps will be run.