There are 0 datanode(s) running and no node(s) are excluded in this operation

There are 0 datanode(s) running and no node(s) are excluded in this operation

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Hadoop Datanodes cannot find NameNode

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Could not find or load main class org.apache.hadoop.util.VersionInfo

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Hadoop: require root's password after enter "start-all.sh"

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hadoop connection refused on port 9000

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How to fix Hadoop WARNING: An illegal reflective access operation has occurred error on Ubuntu

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UnsatisfiedLinkError (NativeIO$Windows.access0) when submitting mapreduce job to hadoop 2.2 from windows to ubuntu

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Opening a file stored in HDFS to edit in VI

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wiping out the Zookeeper data directory

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hadoop command and SLF4J error message cdh in ubuntu

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How to install Hadoop on Ubuntu

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Hadoop nodes die (crash) after a while

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hadoop

Ubuntu cluster management

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Namenode and Datanode are not starting in hadoop

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hadoop

Remote access to namenode is not allowed despite the services are already started.

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hadoop