[YARN-535] TestUnmanagedAMLauncher can corrupt target/test-classes/yarn-site.xml during write phase, breaks later test runs

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.6.0
• Component/s: applications

Environment

OS/X laptop, HFS+ filesystem

• Assignee: Steve Loughran
• Reporter: Steve Loughran
• Created: 03/Apr/13 14:53
• Updated: 07/Jan/17 01:36

Description

the setup phase of TestUnmanagedAMLauncher overwrites yarn-site.xml. As Configuration.writeXml() does a reread of all resources, this will break if the (open-for-writing) resource is already visible as an empty file.

This leaves a corrupted target/test-classes/yarn-site.xml, which breaks later test runs -because it is not overwritten by later incremental builds, due to timestamps.

Issue Links

• is depended upon by: YARN-117 Enhance YARN service model
• relates to: HADOOP-9453 Configuration.loadResource should skip empty resources