Yufei Gu created YARN-7270:
------------------------------
Summary: Resource#getVirtualCores() does unsafe casting from long
to int.
Key: YARN-7270
URL: https://issues.apache.org/jira/browse/YARN-7270
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Affects Versions: 3.1.0
Reporter: Yufei Gu
Assignee: Yufei Gu
Class {{Resource}} has three sub classes(FixedValueResource,
LightWeightResource, and ResourcePBImpl). Only FixedValueResource handle
long-to-int casting nicely. The other two didn't. This cause several unit test
failures. Like this one:
{code}
Error Message
expected:<<memory:4096, vCores:4>> but was:<<memory:4096, vCores:-1>>
Stacktrace
java.lang.AssertionError: expected:<<memory:4096, vCores:4>> but
was:<<memory:4096, vCores:-1>>
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.failNotEquals(Assert.java:743)
at org.junit.Assert.assertEquals(Assert.java:118)
at org.junit.Assert.assertEquals(Assert.java:144)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.TestFSAppAttempt.testHeadroomWithBlackListedNodes(TestFSAppAttempt.java:325)
{code}
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