title: How can I update a configuration file on zookeeper?
body: <p>I uploaded a configuration folder for Solr core to Apache zookeeper using zkClient. 
  When I delete a file in my local configuration and update it to Zookeeper again, I can't see the change reflected in Solr admin page.
  Could somebody please explain how to update/delete files from zookeeper?
  Also where to find the physical files in zookeeper folder?</p>