JackWangCS opened a new pull request, #19666:
URL: https://github.com/apache/flink/pull/19666
## What is the purpose of the change
ZooKeeperUtils.deleteZNode implements a retry loop that is not necessary for
curator version 4.0.1+. We can use idempotent delete since we already upgraded
Curator to 5.2.0.
## Brief change log
- *Delete retry mechanism from ZooKeeperUtils.deleteZNode*
## Verifying this change
This change is already covered by existing tests, such as
ZooKeeperUtilsWriteLeaderInformationTest#testDeleteZNode().
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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