Tsz Wo Nicholas Sze created HDFS-6685:
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Summary: Archival Storage: Update Balancer to preserve storage
type of replicas
Key: HDFS-6685
URL: https://issues.apache.org/jira/browse/HDFS-6685
Project: Hadoop HDFS
Issue Type: Sub-task
Components: balancer
Reporter: Tsz Wo Nicholas Sze
In order to maintain storage policy requirement, Balancer always moves replicas
from a storage with any type to another storage with the same type, i.e. it
preserves storage type of replicas. In this way, Balancer does not require to
know storage policy information.
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