meteorjs / nodejs - kill server process

Is it possible to kill a Meteor.method() - process (on Server side) ?

Example:

Meteor.methods({
     my_method : function (data) {
         this.unblock();
         this.killFiber(this);
         /* Do stuff */
     }
});

The function this.killFiber should now kill the server-side processing method my_method IF there is another one running. So the method my_method is just running once but is not (!) waiting for the previously method when not finished - its killing the prevousily when its not finished yet.

For what ? This method is called from a search-form. While the Server is searching for the result the client is able to change the search term. After he is doing this the this.unblock() function will allow the server side to run the method new BUT not to kill the previously method I do not need anymore.

And ... so on ? The search-form is a string-search form, so the querys execution time can be a bit longer as a "default"-query. And so I think it will be very good to kill the mongo.collection.find() process and the server Meteor.method()-process to save performance.

Is there a predefined method to solve this or another recommended way ?