[ARROW-473] [C++/Python] Add public API for retrieving block locations for a particular HDFS file

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Abandoned
• Component/s: C++, Python
• Labels: filesystem hdfs pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/16117
• Assignee: Unassigned
• Reporter: Wes McKinney
• Created: 10/Jan/17 20:00
• Updated: 11/Jan/23 07:08
• Resolved: 12/May/21 16:36

Description

This is necessary for applications looking to schedule data-local work. libhdfs does not have APIs to request the block locations directly, so we need to see if the hdfsGetHosts function will do what we need. For libhdfs3 there is a public API function

Issue Links

• Parent Feature: ARROW-1292 [C++/Python] Expand libhdfs feature coverage
• links to: GitHub Pull Request #1031