Exception in thread "main" org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /home/maria_dev/read_write_hdfs_example.txt could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation.   This is the exception from the client side. so it is clearly ignoring the datanode because of some issue. @rki_  ... View more

Raised HDFS thread for the above issue https://community.cloudera.com/t5/Support-Questions/second-replica-is-not-found-while-writing-a-simple-file-to/td-p/369684 ... View more