Difference between getElapsedTime() and getQTime() in solr for java

Question

I'm using Solr for Java and want to know what is the difference between getElapsedTime() and getQTime(), after optimization solr indexes I'm confused which one is for what.

   SolrServer solrObject = _JpaTemplate.getSolrServerForCore(Constants.SOLR_CORE1);
   UpdateResponse sorlResponse = solrObject.optimize();
   System.out.print(sorlResponse.getElapsedTime());
   System.out.print(sorlResponse.getQTime());

Answer 1

I'm pretty sure the QTime is the time it takes for the query to execute in Solr whereas the Elapsed Time is the total time taken including the transmission and serialization / deserialization of the results.