[FLINK-19620] Merge StateFun's ExactlyOnceE2E and RemoteModuleE2E

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: statefun-3.0.0
• Component/s: Stateful Functions, Tests
• Labels: pull-request-available
• Assignee: Tzu-Li (Gordon) Tai
• Reporter: Tzu-Li (Gordon) Tai
• Created: 14/Oct/20 02:45
• Updated: 27/Apr/21 18:08
• Resolved: 19/Oct/20 07:54

Description

Currently, we have:

• ExactlyOnceE2E, which verifies end-to-end exactly-once in the presence of TM failures, but uses embedded functions
• RemoteModuleE2E which runs functions remotely and verifies that the communication between StateFun + the functions is correct, messages are routed correctly.

A recent issue (https://github.com/apache/flink-statefun/pull/159) suggested that we should add a E2E with remote functions + TM failures.

With this in mind, it is worth considering merging these 2 E2Es into one, as together they should cover equal functionality (remote functions are built on top of embedded functions), and having them merged also saves test time.

Issue Links

• links to: GitHub Pull Request #163