rServerException.html?is-external=true" title="class or interface in org.apache.solr.client.solrj">SolrServerException</a>,
                                                    <a href="http://download.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Makes a request to one or more of the given urls, using the configured load balancer.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>req</c