Aitozi opened a new pull request, #20397:
URL: https://github.com/apache/flink/pull/20397
… functions
## What is the purpose of the change
This PR is meant to improve the performance of the built in json functions.
The default `LRUCache` used in the JsonPath CacheProvider heavily use the lock
which bring the bad performance.
## Brief change log
- Create a new `JsonPathCache` and set it to the `CacheProvider` when load
the class
## Verifying this change
The functionality is covered by the existing tests. I have not written a
performance test for it, If needed, I will add one. I manually test the case
with the production job, which will have 2~4 times performance improvement.
## 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)
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