[HADOOP-9209] Add shell command to dump file checksums

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 3.0.0-alpha1
• Fix Version/s: 0.23.7, 2.1.0-beta
• Component/s: fs, tools
• Target Version/s: 2.0.3-alpha
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 15/Jan/13 01:59
• Updated: 12/May/16 18:27
• Resolved: 06/Mar/13 23:59

Description

Occasionally while working with tools like distcp, or debugging certain issues, it's useful to be able to quickly see the checksum of a file. We currently have the APIs to efficiently calculate a checksum, but we don't expose it to users. This JIRA is to add a "fs -checksum" command which dumps the checksum information for the specified file(s).

Issue Links

• is duplicated by: HDFS-219 Add md5sum facility in dfsshell