title: Index a continuous stream of documents in SOLR
body: <p>I need to index thousands of documents continuously into SOLR.
  The documents are picked up from a redis like queue ( SSDB) and then indexed into SOLR</p>
  
  <p>Whenever I use the library function $solr->add()  there is a new HTTP call made to solr. Is there a better mechanism to index bulk items into SOLR ? </p>