Junping Du created HDFS-4894:
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Summary: Multiple Replica Placement Policies support in one HDFS
cluster
Key: HDFS-4894
URL: https://issues.apache.org/jira/browse/HDFS-4894
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Junping Du
We should allow multiple BPPs co-existing on the same HDFS cluster for
different purpose of data and different types of application, i.e. we should
allow some old, infrequently accessed data/directory to under RAID policy so
that can save space.
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