[HADOOP-13600] S3a rename() to copy files in a directory in parallel

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.7.3
• Fix Version/s: HADOOP-15183
• Component/s: fs/s3
• Target Version/s: 3.3.0
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 13/Sep/16 11:16
• Updated: 26/Jul/19 11:33
• Resolved: 17/Jun/19 19:41

Description

Currently a directory rename does a one-by-one copy, making the request O(files * data). If the copy operations were launched in parallel, the duration of the copy may be reducable to the duration of the longest copy. For a directory with many files, this will be significant

Issue Links

• depends upon: HADOOP-13823 s3a rename: fail if dest file exists
• is related to: HIVE-15093 S3-to-S3 Renames: Files should be moved individually rather than at a directory level
• links to: GitHub Pull Request #157
• links to: GitHub Pull Request #157
• links to: GitHub Pull Request #167