pan3793 opened a new pull request, #7227:
URL: https://github.com/apache/hadoop/pull/7227
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### Description of PR
I saw the test
`TestAbstractYarnScheduler.testGetRunningContainersToKill[FAIR]` fails
occasionally
```
Error:
org.apache.hadoop.yarn.server.resourcemanager.scheduler.TestAbstractYarnScheduler.testGetRunningContainersToKill[FAIR]
-- Time elapsed: 0.016 s <<< FAILURE!
java.lang.AssertionError: expected:<[OPPORTUNISTIC1, OPPORTUNISTIC0,
GUARANTEED1, GUARANTEED0, AM1, AM0]> but was:<[OPPORTUNISTIC0, OPPORTUNISTIC1,
GUARANTEED1, GUARANTEED0, AM1, AM0]>
at org.junit.Assert.fail(Assert.java:89)
at org.junit.Assert.failNotEquals(Assert.java:835)
at org.junit.Assert.assertEquals(Assert.java:120)
at org.junit.Assert.assertEquals(Assert.java:146)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.TestAbstractYarnScheduler.testGetRunningContainersToKill(TestAbstractYarnScheduler.java:1583)
...
```
this is likely due to the two `System.currentTimeMillis()` return same value.
> Returns the current time in milliseconds. Note that while the unit of time
of the return value is a millisecond, the granularity of the value depends on
the underlying operating system and may be larger. For example, many operating
systems measure time in units of tens of milliseconds.
### How was this patch tested?
Run the modified test locally multi times.
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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