NITIN VERMA created HADOOP-14048:
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Summary: The REDO operation of AtomicRename of folder doesn't
create a placeholder blob for destination folder
Key: HADOOP-14048
URL: https://issues.apache.org/jira/browse/HADOOP-14048
Project: Hadoop Common
Issue Type: New Feature
Components: fs/azure
Reporter: NITIN VERMA
Assignee: NITIN VERMA
While doing manual testing, I realized that the crash recovery of AtomicRename
operation of a folder in AzureNativeFileSystem doesn't create a placeholder
property blob for destination folder. Due to this bug, the destination folder
can not be renamed again.
Below is how I tested this:
1. Create a test directory as "/test/A"
2. Create 15 block blobs in "/test/A" folder.
3. Run "hadoop fs -mv /test/A /test/B" command and crash it as soon as
/test/A-RenamePending.json file is created.
4. Now run "hadoop fs -lsr /test" command, which should complete the pending
rename operation (redo) as a part of crash recovery.
5. The REDO method copies the pending files from source folder to destination
folder (by consulting A-RenamePending.json file), but it doesn't create a
0-byte property blob for /test/B folder, which is a bug as that folder will not
be usable for many operations.
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