slfan1989 opened a new pull request, #8262:
URL: https://github.com/apache/hadoop/pull/8262
### Description of PR
JIRA: YARN-11932. Fix TestYarnFederationWithFairScheduler timeout caused by
shared NodeLabel storage.
TestYarnFederationWithFairScheduler#testMetricsInfo intermittently times out
because multiple test subclusters share the same NodeLabel storage directory
(/tmp/hadoop-yarn-$USER/node-labels) by default. Residual editlog entries
containing "delete default label" operations from previous tests cause RM
startup to fail with "Node label=default to be removed doesn't existed in
cluster node labels collection".
This pr sets an isolated NodeLabel storage directory for each subcluster
using GenericTestUtils.getTestDir() with a unique name pattern
(node-labels-{subClusterId}-{timestamp}) to avoid reusing old editlog files.
### How was this patch tested?
Exists Junit Test.
### 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?
### AI Tooling
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