What Is A Datanode? How Many Instances Of Datanode Run On A Hadoop Cl

1.	What Is A Datanode? How Many Instances Of Datanode Run On A Hadoop Cluster?
Answer» A DATANODE stores data in the Hadoop File System HDFS. There is only One DataNode PROCESS RUN on any hadoop slave node. DataNode runs on its own JVM process. On startup, a DataNode connects to the NameNode. DataNode INSTANCES can talk to each other, this is mostly during REPLICATING data. A DataNode stores data in the Hadoop File System HDFS. There is only One DataNode process run on any hadoop slave node. DataNode runs on its own JVM process. On startup, a DataNode connects to the NameNode. DataNode instances can talk to each other, this is mostly during replicating data.

What Is A Datanode? How Many Instances Of Datanode Run On A Hadoop Cluster?

Answer»

A DATANODE stores data in the Hadoop File System HDFS. There is only One DataNode PROCESS RUN on any hadoop slave node. DataNode runs on its own JVM process. On startup, a DataNode connects to the NameNode. DataNode INSTANCES can talk to each other, this is mostly during REPLICATING data.

A DataNode stores data in the Hadoop File System HDFS. There is only One DataNode process run on any hadoop slave node. DataNode runs on its own JVM process. On startup, a DataNode connects to the NameNode. DataNode instances can talk to each other, this is mostly during replicating data.

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