ramkrish86 opened a new pull request, #21508:
URL: https://github.com/apache/flink/pull/21508
## What is the purpose of the change
Supports ABFS as Streaming file sink
## Brief change log
- Allows sink to write to ABFS
- Allows to recover from ABFS
- There is no truncate API in ABFS hadoop driver. But for cases where we
want to recover a job from an older persisted offset, we need to truncate. For
which we rewrite the file.
## Verifying this change
This change added tests and can be verified as follows:
- Verified the basics in a Kubernetes based session cluster with 1 JM and
4 TMs.
- Was able to write to ABFS and also recover from it.
- **Pls note this is an initial PR, we are still doing some extensive
testing. This is for initial feedback**
- Used the existing test cases in **HadoopRecoverableWriterTest** and
extended the same to verify the functionality but with ABFS.
- New test case name AzureBlobRecoverableWriterTest
- Existing Hadoop serializers are used. Nothing changed in this format.
- `[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running org.apache.flink.fs.azurefs.AzureBlobRecoverableWriterTest
[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed:
72.345 s - in org.apache.flink.fs.azurefs.AzureBlobRecoverableWriterTest
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0`
## 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: (yes) - Recovery is
also handled here.
- The S3 file system connector: (No)
## Documentation
- Does this pull request introduce a new feature? (yes)
- If yes, how is the feature documented? (not documented)
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