Steve Loughran created YARN-535:
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Summary: TestUnmanagedAMLauncher can corrupt
target/test-classes/yarn-site.xml during write phase, breaks later test runs
Key: YARN-535
URL: https://issues.apache.org/jira/browse/YARN-535
Project: Hadoop YARN
Issue Type: Bug
Components: applications
Affects Versions: 3.0.0
Environment: OS/X laptop, HFS+ filesystem
Reporter: Steve Loughran
Priority: Minor
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.
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