What Is Zookeeper in Solr

ZooKeeper is a centralised service for maintaining configuration information in a distributed system. You can upload, download, and edit configuration files, so that all cores belonging to the same collection get same config set. You can read more about Solr cloud config management here.

Do I need ZooKeeper for Solr?

Although Solr comes bundled with Apache ZooKeeper, you should consider yourself discouraged from using this internal ZooKeeper in production. … “For a ZooKeeper service to be active, there must be a majority of non-failing machines that can communicate with each other.

What is ZooKeeper database?

ZooKeeper is a distributed, open source coordination service from Apache for distributed applications. Distributed applications can build upon it to implement higher level services for synchronization, groups and naming, and configuration maintenance.