I have seen many issues related to that, but nobody seems to have found an answer to this one, so I'm opening a new issue.

This is what I'm doing in the Java API for search;
https://gist.github.com/4444788

And even if I put a 2 sec timeout, I have often requests that take more than 5 and even 10 seconds that does not time out. But sometime, I have some query that take under 2 sec and says timed out.

On the documentation it says;
timeout A search timeout, bounding the search request to be executed within the specified time value and bail with the hits accumulated up to that point when expired. Defaults to no timeout.

With that I'm expecting every query to be under (or roughly) around 2 second, but not 5 or 10 seconds.