title: Facebook app being throttled, what is gr:post:User/external_edge
body: <p>Our app is currently being throttled, we are getting</p>
  
  <pre><code>{
    "error": {
      "message": "(#4) Application request limit reached", 
      "type": "OAuthException", 
      "code": 4
    }
  }
  </code></pre>
  
  <p>On <code>App</code>-><code>Insights</code>-><code>Developer</code>-><code>Activity &amp; Errors</code> we are seeing</p>
  
  <pre><code>Restrictions
  App is unrestricted.
  
  API Throttling
  None during specified period.
  </code></pre>
  
  <p>So it doesn't look like we should be getting throttled, but I <em>can</em> see a warning,</p>
  
  <pre><code>Calls Are Too CPU Intensive  - 2 hours, 38 minutes
  Method  Fraction of Budget
  
  gr:post:User/external_edge  109%
  gr:post:User/scores 1.8%
  gr:get:User/external_edge   1.8%
  gr:get:/fql 1.2%
  ui:feed:async:get:  0.43%
  gr:post:OpenGraphAction/commen  0.15%
  ui:apprequests:iframe:get:  0.08%
  gr:delete:Post  0.04%
  gr:delete:  0.02%
  ui:feed:async:post: 0.02%
  </code></pre>
  
  <p>I assume this means that we're posting too often to User/external_edge... but I don't know what User/external_edge is -- how do I find this out?</p>
  
  <p>Also shouldn't we have gotten an email or warning before being cut off from the API? What do we need to do to get unthrottled?</p>