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Allocation of Memory on the cluster

Allocation of Memory on the cluster

New Contributor

Hello,

 

We have a cluster of 6 nodes which one of them has 130 GB of Ram. If nothing is running , i see that almost 100 GB are already allocated(from Putty) and when map-reduce starts from hive , i have 3 Gb more or less on each node.

How this is possible?

 

Thank you.