liuguanghua created HDFS-17592:
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Summary: FastCopy support data copy in different nameservices
without federation
Key: HDFS-17592
URL: https://issues.apache.org/jira/browse/HDFS-17592
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: liuguanghua
FastCopy is a faster data copy tools. In federation cluster or a single
cluster , FastCopy copy blocks via hardlink. This is more much faster than
original copy.
FastCopy can support data copy via transfer in different nameservices without
federation. In theory, it could save almost half the time compared to origianl
copy.
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