simbadzina opened a new pull request, #5282:
URL: https://github.com/apache/hadoop/pull/5282
HDFS-16876: Changes cleanup of shared RouterStateIdContext to be driven by
namenodeResolver data.
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### Description of PR
Changes cleanup of shared RouterStateIdContext to be driven by
namenodeResolver data, versus tracking the set of active connection pools.
### How was this patch tested?
New test cases in TestObserverWithRouter.
**testSharedStateInRouterStateIdContext** validates that entries in the
RouterStateIdContext are long lived and not recreated when connectionPools are
deleted. This fails with the previous approach, and passes with the new one.
**testRouterStateIdContextCleanup** validates that the new approach
eventually deletes entries in the map.
### For code changes:
- [ X] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
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