GitHub user GJL opened a pull request: https://github.com/apache/flink/pull/5584
[FLINK-8787][flip6] WIP WIP ## What is the purpose of the change *(For example: This pull request makes task deployment go through the blob server, rather than through RPC. That way we avoid re-transferring them on each deployment (during recovery).)* cc: @tillrohrmann ## 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): (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, Yarn/Mesos, 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) You can merge this pull request into a Git repository by running: $ git pull https://github.com/GJL/flink FLINK-8787 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/5584.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #5584 ---- commit 0cde09add17106f09e1f44b2a73400ea14a9eb21 Author: gyao <gary@...> Date: 2018-02-26T17:52:18Z [hotfix] Add requireNonNull validation to Configuration copy constructor commit 8f826c673bafd8228bb25da20e7dd40384fae971 Author: gyao <gary@...> Date: 2018-02-26T17:54:34Z [FLINK-8787][flip6] Ensure that zk namespace configuration reaches RestClusterClient ---- ---