Szilard Nemeth created YARN-10849:
-------------------------------------
Summary: Clarify testcase documentation for
TestServiceAM#testContainersReleasedWhenPreLaunchFails
Key: YARN-10849
URL: https://issues.apache.org/jira/browse/YARN-10849
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Szilard Nemeth
Assignee: Szilard Nemeth
There's a small comment added to testcase:
org.apache.hadoop.yarn.service.TestServiceAM#testContainersReleasedWhenPreLaunchFails:
{code}
// Test to verify that the containers are released and the
// component instance is added to the pending queue when building the launch
// context fails.
{code}
However, it was not clear for me why the "launch context" would fail.
While the test passes, it throws an Exception that tells the story.
{code}
2021-07-06 18:31:04,438 ERROR [pool-275-thread-1]
containerlaunch.ContainerLaunchService (ContainerLaunchService.java:run(122)) -
[COMPINSTANCE compa-0 : container_1625589063422_0001_01_000001]: Failed to
launch container.
java.lang.IllegalArgumentException: Can not create a Path from a null string
at org.apache.hadoop.fs.Path.checkPathArg(Path.java:164)
at org.apache.hadoop.fs.Path.<init>(Path.java:180)
at
org.apache.hadoop.yarn.service.provider.tarball.TarballProviderService.processArtifact(TarballProviderService.java:39)
at
org.apache.hadoop.yarn.service.provider.AbstractProviderService.buildContainerLaunchContext(AbstractProviderService.java:144)
at
org.apache.hadoop.yarn.service.containerlaunch.ContainerLaunchService$ContainerLauncher.run(ContainerLaunchService.java:107)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
{code}
This exception is thrown because the id of the Artifact object is unset (null)
and TarballProviderService.processArtifact verifies it and it does not allow
such artifacts.
The aim of this jira is to add a clarification comment or javadoc to this
method.
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