HDFS should expose a fileid to uniquely identify a file
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Key: HDFS-487
URL: https://issues.apache.org/jira/browse/HDFS-487
Project: Hadoop HDFS
Issue Type: New Feature
Reporter: dhruba borthakur
Assignee: dhruba borthakur
HDFS should expose a id that uniquely identifies a file. This helps in
developing applications that work correctly even when files are moved from one
directory to another. A typical use-case is to make the Pluggable Block
Placement Policy (HDFS-385) use fileid instead of filename.
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