Entry read support local node rack awareness

[hangc0276]

Motivation

• The entry write supports the local node Rack-Aware placement policy but does not support the local node Region-Aware placement policy
• The entry read supports the local node Region-Aware placement policy but does not support the local node Rack-Aware placement policy

In order to match the local node region/rack awareness both on entry write and read, we need to support the following feature

• Entry write supports local node region awareness placement policy
• Entry read supports local node rack awareness placement policy

Modification

The PR aims to support entry read local node awareness placement policy.