[2.3] Backport mocked HostResolver from KAFKA-12193 to avoid relying on kafka.apache.org for specific DNS behavior #10055
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The original PR was #9902
The reason for back-porting this improved test infrastructure is to address some flakes which we have seen when kafka.apache.org DNS changes, specifically in the
ClusterConnectionStatesTest
. This change uses a mocked resolver for the multi-ip tests.