Search went down on all wikis, we are working to bringing it up again. Search functionality has been disabled to avoid complications.
Original report:
When performing a search on NL wiki or Commons instead of results (or a message there are no results) I get an errormessage stating the search function is too busy. "Er is een fout opgetreden tijdens het zoeken: De zoekfunctie heeft het op dit moment heel druk. Probeer het later opnieuw." (An error occured during searching: The searchfunction is very busy at the moment. Try again later.) On Dutch Wikipedia other users are also complaining about the same problem. Problem occurs when you use a search term that isn't the name of an existing article. (Wereldelectricteitsgebruik gives the error message, Duitsland gives the Dutch article about Germany)