0 dead) - get number of hadoop nodes

Число узлов - Datanodes available: 1 (1 total, 0 dead) - get number of hadoop nodes

Datanodes available: 1 (1 total, 0 dead)

Это часть ответа на попытку узнать число действующих узлов кластера

hduser@slave:~$ hadoop fs -ls -R
ls: Call From slave/127.0.0.1 to master:54310 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused

org.apache.hadoop.hdfs.server.datanode.DataNode: Problem connecting to server: master/192.168.0.1:54310

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