[HDFS-4800] Fix INodeDirectoryWithSnapshot#cleanDeletedINode

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: Snapshot (HDFS-2802)
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: Jing Zhao
• Reporter: Jing Zhao
• Created: 06/May/13 17:15
• Updated: 07/May/13 13:13
• Resolved: 06/May/13 22:49

Description

HDFS-4791 updated and fixed the deletion logic for reference node, but did not update INodeDirectoryWithSnapshot#cleanDeletedINode. When deleting a snapshot s, after we merge s1 to its prior snapshot s0, cleanDeletedINode is called to destroy the files/directories that were created after taking snapshot s0. However, if a node is in the deleted list of s1 because of renaming, we should not destroy the node and its subtree, but just continue the normal snapshot deletion process.