Izeren opened a new pull request, #27617:
URL: https://github.com/apache/flink/pull/27617
## What is the purpose of the change
Add configurable property for file system factories to allow loading
multiple factories packaged in the image depending on their priority for the
same schema.
This change will help to support production migration between filesystem
implementations for flink users that build plugin jars directly in flink image.
## Brief change log
- Introduced config path: `fs.{SCHEMA}.priority.{FACTORY}`. Example usage:
`fs.s3.priority.org.apache.flink.runtime.fs.hdfs.HadoopFsFactory: 1`
- Default priority of all plugin loaded FS is set to 0
- For new experimental fs factories, suggested default is -1.
## Verifying this change
- Changes are covered with unit testing.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (**yes** / no)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / **no** / don't
know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (**yes** / no)
- If yes, how is the feature documented? (not applicable / docs /
**JavaDocs** / not documented)
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