Namenode Heap Size usage is > 80% on daily basis

[#1]

Using:
HDP 3.0.1
HDFS 3.1.0

NAMENODE HEAP: 84.8% 3.3 GB / 4.0 GB
DISK USAGE (DFS USED): 71.20% 63.9 TB / 89.7 TB
DISK USAGE (NON DFS USED): 0.74% 676.2 GB / 89.7 TB
DISK REMAINING: 28.06% 25.2 TB / 89.7 TB
Block Size : 128 MB

Any idea how to solve to reduce reduce the name node heap size usage?

Thank you

[#2 · Accepted solution]

@Koffi Heap plays a vital role on overall HDFS performance. So you might need to confirm the usage is legitimate and you have adequate heap configured for Name node and Data nodes. Please refer below documentation.

https://docs.cloudera.com/HDPDocuments/HDP2/HDP-2.6.5/bk_command-line-installation/content/configuri...