[HDFS-3755] Creating an already-open-for-write file with overwrite=true fails

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.0.2-alpha
• Component/s: namenode
• Target Version/s: 2.0.2-alpha
• Hadoop Flags: Reviewed

Release Note

This is an incompatible change: Before this change, if a file is already open for write by one client, and another client calls fs.create() with overwrite=true, an AlreadyBeingCreatedException is thrown. After this change, the file will be deleted and the new file will be created successfully.

• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 02/Aug/12 21:02
• Updated: 08/May/15 06:39
• Resolved: 08/Aug/12 20:16

Description

If a file is already open for write by one client, and another client calls fs.create() with overwrite=true, the file should be deleted and the new file successfully created. Instead, it is currently throwing AlreadyBeingCreatedException.

This is a regression since branch-1.

Issue Links

• breaks: HDFS-6300 Prevent multiple balancers from running simultaneously