slfan1989 opened a new pull request, #8832:
URL: https://github.com/apache/hadoop/pull/8832
### Description of PR
JIRA: YARN-12029. Fix race in
TestYarnNativeServices.testCreateServiceWithPlacementPolicy after flex.
`testCreateServiceWithPlacementPolicy` can read the previous `STABLE` state
before the ApplicationMaster processes an asynchronous flex request, causing
the test to fail unexpectedly.
Wait for the requested container count, the component's `FLEXING` state, and
a non-stable service state before checking that the service cannot stabilize.
Apply this to both the 3-to-5 and 5-to-4 transitions.
Replace the broad exception handlers with explicit
`assertThrows(TimeoutException.class, ...)` assertions, while preserving
the existing container-count, anti-affinity, and final stability checks.
This change only updates test code.
### How was this patch tested?
CI.
### For code changes:
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- [ ] Object storage: Have the integration tests been executed and the
endpoint
declared according to the connector-specific documentation? *Note:
Automated CI
testing doesn't cover all cases so manual testing with cloud storage
is still
required.*
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
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`NOTICE-binary` files?
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