Which Host Should HDFS "Balancer" Role Reside?

[#1]

Hi All, does the "Balancer" role itself use any resources?  Does it matter which host the role resides (e.g. NameNode, Edge Node, etc)? Thank you.

[#2 · Accepted solution]

hi @DataMike ,

The Balancer role is normally added (by default) when the HDFS service is installed,
so the "Balancer" Resides usally in your nameNode , but to make sure where it's assigned you can check HDFS->Instances 
then check the role Type , you'll find the role 'balancer' assigned to a host ( usally it's the nameNode ) .

for  your second question I guess it's better to use the nameNode just to maintain the architecture since we're talking about checking all the other DataNodes,moving blocks...