title: sorl-spark : how to increase reading data speed?
body: <p>I am using <a href="https://github.com/lucidworks/spark-solr" rel="nofollow noreferrer">spark-solr</a> to fetch 2 or 3 attributes (id and date attributes) from solr but it takes tens of seconds to fetch hundred thousands documents.</p>
  <p>My solr collections have around 10 shards, and each of them have 4 replicas. My collections contains from ten millions documents to hundred millions of documents.
  Regarding the lucidworks spark-solr connector, I set rows to 10000 and splits to true.</p>
  <p>Is it the expected behavior ? (I mean, is Solr slow when fetching data by essence ?) Or could you help me understand how to configure solr and this lucidworks connector to increase the fetch speed please ? I hardly found answers on the internet.</p>
  <p>Thank you for your help :)</p>