The Publish to SolrCloud publisher will post documents to SolrCloud index using SolrJ Library. SolrJ has a CloudSolrClient class to communicate with SolrCloud. Instances of this class communicate with Zookeeper to discover Solr endpoints for SolrCloud collections , and then use the LBHttpSolrClient to issue perform requests.
Some of the features of the Publish to SolrCloud publisher include:
Customizable feed to the Solr index by editing the XSLT file.
Specify the zookeeper server and port, .
Is connector independent.
XSL Transformations.