[YARN-7810] TestDockerContainerRuntime test failures due to UID lookup of a non-existent user

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.1.0, 2.10.0, 2.9.2, 3.0.3
• Labels: Docker
• Target Version/s: 2.10.0, 2.9.1
• Hadoop Flags: Reviewed
• Assignee: Shane Kumpf
• Reporter: Shane Kumpf
• Due: 28/Feb/18
• Created: 24/Jan/18 14:29
• Updated: 02/Oct/19 17:14
• Resolved: 16/Apr/18 17:45

Description

YARN-7782 enabled the Docker runtime feature to remap the username to uid:gid form for launching Docker containers. The feature does an id -u and id -G to get the UID and GIDs. This fails with the test user, as that user doesn't actually exist on the host.

[ERROR] testContainerLaunchWithCustomNetworks(org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.TestDockerContainerRuntime)  Time elapsed: 0.411 s  <<< ERROR!
org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerExecutionException: 
ExitCodeException exitCode=1: id: 'run_as_user': no such user

	at org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.DockerLinuxContainerRuntime.getUserIdInfo(DockerLinuxContainerRuntime.java:711)
	at org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.DockerLinuxContainerRuntime.launchContainer(DockerLinuxContainerRuntime.java:757)
	at org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.TestDockerContainerRuntime.testContainerLaunchWithCustomNetworks(TestDockerContainerRuntime.java:599)