A method of searching shared files stored on a shared storage includes providing a search functionality in the shared storage having a set of search indexes to perform a search based on a search term; providing an event stream of update events associated with the shared files in the shared storage; processing the event stream to generate a processed event stream; and responding to update events in the processed event stream by indexing files referenced in the update events in the processed event stream where the indexing is performed to maintain a predetermined level of quality of service at the shared storage.