[GitHub] [flink] Xpray opened a new pull request #8756: [FLINK-12406] [Runtime] Report BLOCKING_PERSISTENT result partition meta back to client

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

Xpray opened a new pull request #8756: [FLINK-12406] [Runtime] Report BLOCKING_PERSISTENT result partition meta back to client
URL: https://github.com/apache/flink/pull/8756
 
 
   ## What is the purpose of the change
   This PR follows FLINK-12405, it reports all result partition locations of `BLOCKING_PERSISTENT` back to `ExecutionEnvironment`, so `TableEnvironment` can access these data in later PR[FLINK-12420]
   
   
   ## Brief change log
     - *Add a new class `IntermediateResultDescriptor`, which stores location of a `BLOCKING_PERSISTENT` `ResultPartition`*
     - *Add a new method `getResultPartitionDescriptors()` in `AccessExecutionGraph`*
     - *Add a new filed in `JobExecutionResult`, `JobResult`, `ArchivedExecutionGraph` and `ExecutionEnvironment`, which keeps a mapping from `IntermediateDataSetID` to its `ResultPartition` locations*
     - *When a job finishes, the metadata will flow in this path: `ExecutionGraph` -> `ArchivedExecutionGraph` -> `JobExecutionResult` -> `JobResult` -> `ExecutionEnvironment`*
   
   
   ## Verifying this change
   
   This change added tests and can be verified as follows:
   org.apache.flink.test.operators.ExecutionEnvironmentITCase#testAccessingBlockingPersistentResultPartition
   
   ## 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? yes
        [FLIP-36](https://cwiki.apache.org/confluence/display/FLINK/FLIP-36%3A+Support+Interactive+Programming+in+Flink)
        [Implementations of FLIP-36](https://docs.google.com/document/d/1qY45m3_r2NmXujcWcjJMJ_avxvnXjGy9tDn99qIBM1Y/edit#)

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