[GitHub] Xeli opened a new pull request #6594: [FLINK-9311] [pubsub] Added PubSub source connector with support for checkpointing (ATLEAST_ONCE)

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

Xeli opened a new pull request #6594: [FLINK-9311] [pubsub] Added PubSub source connector with support for checkpointing (ATLEAST_ONCE)
URL: https://github.com/apache/flink/pull/6594
 
 
   **What is the purpose of the change**
   Adding a PubSub connector with support for Checkpointing
   
   **Verifying this change**
   This change added tests and can be verified as follows:
   
   - Added unit tests.
   - Added integration tests to flink-end-to-end which runs against docker.
   - An example has been added in flink-examples which runs against the actual Google PubSub service. this has been manually verified.
   
   - Is there a need for integration tests?
   We feel like there is and have added them. 
   
   **Does this pull request potentially affect one of the following parts:**
   - Dependencies (does it add or upgrade a dependency): Yes, Google Cloud Sdk for PubSub  but because it is a connector this does not add any dependencies in flink itself.
   - 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): Nothing has been changed only a connector has been added.
   - 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
   If yes, how is the feature documented? JavaDocs, added an example in flink-examples and we updated the website docs.

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