[HADOOP-347] Implement HDFS content browsing interface

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.1.0, 0.1.1, 0.2.0, 0.2.1, 0.3.0, 0.3.1, 0.3.2, 0.4.0
• Fix Version/s: 0.5.0
• Assignee: Devaraj Das Assign to me
• Reporter: Devaraj Das
• Created: 06/Jul/06 17:37
• Updated: 02/May/13 02:28
• Resolved: 19/Jul/06 09:39

Description

Implement HDFS content browsing interface over HTTP. Clients would connect to the NameNode and this would send a redirect to a random DataNode. The DataNode, via dfs client, would proxy to namenode for metadata browsing and to other datanodes for content. One can also view the local blocks on any DataNode. Head, Tail will be provided as shorthands for viewing the first block and the last block of a file.
For full file viewing, the data displayed per HTTP request will be a block with a PREV/NEXT link. The block size for viewing can be a configurable parameter (the user sets it via the web browser) to the HTTP server (e.g., 256 KB can be the default block size for viewing files).

Issue Links

• depends upon: HADOOP-376 Datanode does not scan for an open http port