Relationship between ZooKeeper and HDFS

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ZooKeeper Failover Controller (ZKFC) is the client of a ZooKeeper cluster that monitors the status of HDFS NameNodes. The ZKFC process is deployed only on the node where a NameNode is deployed. It can be deployed on both the active and standby NameNodes.

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Relationship between ZooKeeper and HDFS
ZooKeeper Failover Controller (ZKFC) is the client of a ZooKeeper cluster that monitors the status of HDFS NameNodes. The ZKFC process is deployed only on the node where a NameNode is deployed. It can be deployed on both the active and standby NameNodes.

What is the function of ZooKeeper in HDFS?
ZooKeeper Failover Controller (ZKFC) is the client of a ZooKeeper cluster that monitors the status of HDFS NameNodes. The ZKFC process is deployed only on the node where a NameNode is deployed. It can be deployed on both the active and standby NameNodes.

Definition of ZooKeeper
ZooKeeper is an open-source, distributed application coordination service. It prevents single points of failure and helps create reliable distributed applications.

What is the concept of ZooKeeper?
ZooKeeper is an open-source, distributed application coordination service. It prevents single points of failure and helps create reliable distributed applications.

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