title: Fql mutliquery limit
body: <p>I need to retrieve all Facebook counters of comments or share for each url of the site where I work. I wrote a batch who retrieves the counters by sending FQL multiqueries on the <code>link_stat</code> table. The number of URL in the site is approximately 400 000, so I have to do 400 000 requests... The batch will execute once a day.</p>
  
  <p>I need to determine the number of requests in each FQL multiquery and the frequence of sending multiquery.
  I have read there is a request limit who can throw the exception </p>
  
  <blockquote>
    <p>error =     {message = n request limit reached";type =
    OAuthException;};"(#4) Application request limit
    reached","type":"OAuthException"}}.</p>
  </blockquote>
  
  <p>How can I determine this limit?</p>