title: Solr: Migrating an existing or newly-split shard to a new node
body: <p>We have started working on our current search from master/slave to SolrCloud. I have couple of questions related with expanding the nodes dynamically. Please help. </p>
  
  <ol>
  <li><p>What is best way to migrate an existing shard to new node? is it just a creating a core on new node manually as below or there is another way? </p>
  
  <pre>localhost:8888/solr/admin/cores?action=CREATE&name=testcollection_shard1_replica1&collection=testcollection&shard=shard1&collection.configName=collection1</pre></li>
  <li><p>How to create new replica dynamically? is just creating a new core as below or there is another way? </p>
  
  <pre>localhost:8888/solr/admin/cores?action=CREATE&name=testcollection_shard1_replica2&collection=testcollection&shard=shard1&collection.configName=collection1</pre></li>
  <li><p>How to add a brand new shard to collection dynamically? is it just creating a new core with new shard name on a new node as below? will on newly created shard documents be distributed automatically? or this is not the right way and we should use shard splitting? </p>
  
  <pre><code>localhost:8888/solr/admin/cores?action=CREATE&name=testcollection_shard2_replica1&collection=testcollection&shard=shard2&collection.configName=collection1</code></pre></li>
  </ol>
  
  <p>Thank you so much for help!! </p>
  
  <p>-Umesh</p>