[HADOOP-11285] FileUtil operations don't check for native lib loaded on windows

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.6.0
• Component/s: util

Environment

windows

• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 08/Nov/14 21:35
• Updated: 05/Jun/18 15:15

Description

On windows FileUtil.canRead() and the like requires the native APIs (at least until a migration to java 7 APIs). The methods do not, however, call NativeIO.isAvailable() to verify the native libs are there. As a result, the calls fail with less useful stack traces.

if Java 7 allows all of these calls to be replaced, then this is a non-issue

If not, I propose some verifyAvailableOnWindows() method which triggers an exception; one which includes some hints about the problem —perhaps a URL to a wiki page on the topic

Issue Links

• relates to: MAPREDUCE-5451 MR uses LD_LIBRARY_PATH which doesn't mean anything in Windows