05-08-2017 07:04 PM
I would like to know what is the best practice if there is a maintenace shutdown for hardware.
we have 5 datanodes with each 4TB of data. remaining 5 datanodes will be up and has the cpacity to accomade .
I would like to know should i have to stop the datanode using
sudo service hadoop-hdfs-datanode stop
or should i have to decommission and commision in the cluster when i am peforming hardware shutdown/restart
between namenode hardware is not touch right know.