I Have a hadoop cluster 3.0.1 with 3 journalnodes, 1 nfsgateways node and 6 workernodes. I connected by ssh to the worker nodes today and realised by doing a "df -h" that one a the one local disk (/data/4) is around 94% used on every worker nodes whereas the others disk are between 50% and 65%...
The HDFS status on the another hand is the following:
Disk Usage (DFS Used) 44.77% 28.1 TB / 62.8 TB
Disk Usage (Non DFS Used) 14.97% 9.4 TB / 62.8 TB
Disk Remaining 40.26% 25.3 TB / 62.8 TB
What are the the elements i should check to make sure that a full local disk won't create any issue?