title: Multiple url purging Varnish issue
body: <p>I have an issue with varnish purging : </p>
  
  <p>Our application is very dynamic . 
  So an event on Object A , will generate 10.000 Purges because Object A infos are present in all pages. </p>
  
  <p>Object A is stats seller and Page are ads page . </p>
  
  <p>We are managing this by an asynch http PURGE call to varnish from the php code using curl . </p>
  
  <p>So we will have 10000 http call 
  The urls cannot be calculated (so REgex is not an options ) </p>
  
  <p>I want to ask you guys , is there any possibility in varnish to do some Batch Purging (HTTP interface) ? </p>
  
  <p>If not , what's the options that you test and works in a very dynamic application when model and events affect a lot your pages . </p>
  
  <p>Thanks in advance 
  Nabil</p>