Jing Zhao created HDFS-6609:
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Summary: Use DirectorySnapshottableFeature to represent a
snapshottable directory
Key: HDFS-6609
URL: https://issues.apache.org/jira/browse/HDFS-6609
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Jing Zhao
Assignee: Jing Zhao
Currently we use INodeDirectorySnapshottable to represent a snapshottable
directory. When we set a directory to snapshottable, we also need to replace
the corresponding INode. It will be better to use a
DirectorySnapshottableFeature to simplify the process and get rid of the inode
replacement.
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