Hadoop - Zookeeper


Zookeeper is a service used to track the health of the nodes.

Zookeeper keep a quorum (logic topic on machine).

ZooKeeper is a coordination service for distributed applications.

It provides a shared hierarchical namespace that is organized like a standard file system.

The namespace consists of data registers called znodes, for ZooKeeper data nodes, which are similar to files and directories.

A name in the namespace is a sequence of path elements where each element is separated by a / character, such as the path /app1/p_2


Task Runner