[GitHub] Matrix42 opened a new pull request #7287: [FLINK-11140][streaming] Fix empty child path check in Buckets

[GitBox <gi...@apache.org>]

Matrix42 opened a new pull request #7287: [FLINK-11140][streaming] Fix empty child path check in Buckets
URL: https://github.com/apache/flink/pull/7287
 
 
   
   ## What is the purpose of the change
   
   Fix empty child path check in Buckets
   
   ## Brief change log
   
   *(for example:)*
     - *The TaskInfo is stored in the blob store on job creation time as a persistent artifact*
     - *Deployments RPC transmits only the blob storage reference*
     - *TaskManagers retrieve the TaskInfo from the blob cache*
   
   
   ## Verifying this change
   
   *(Please pick either of the following options)*
   
   This change is a trivial rework / code cleanup without any test coverage.
   
   *(or)*
   
   This change is already covered by existing tests, such as *(please describe tests)*.
   
   *(or)*
   
   This change added tests and can be verified as follows:
   
   *(example:)*
     - *Added integration tests for end-to-end deployment with large payloads (100MB)*
     - *Extended integration test for recovery after master (JobManager) failure*
     - *Added test that validates that TaskInfo is transferred only once across recoveries*
     - *Manually verified the change by running a 4 node cluser with 2 JobManagers and 4 TaskManagers, a stateful streaming program, and killing one JobManager and two TaskManagers during the execution, verifying that recovery happens correctly.*
   
   ## 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, Yarn/Mesos, 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 documented)
   

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