default drain_ongoing_call_timeout to None

[JoshVanL]

ActorRuntimeConfig hardcoded drain_ongoing_call_timeout to 60s. The Dapr runtime's placement dissemination timeout defaults to 30s and drain blocks the placement LOCK -> UPDATE -> UNLOCK round, so a 60s drain stalls the disseminator and resets the placement stream.

Match the other SDKs (.NET, Go, Java, JS) by leaving the field unset, so daprd applies its 2s default (api.DefaultOngoingCallTimeout). Omit the field from as_dict() when None so a JSON null is not sent to the runtime.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.49%. Comparing base (bffb749) to head (544b6a3).
⚠️ Report is 121 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1016      +/-   ##
==========================================
- Coverage   86.63%   81.49%   -5.14%     
==========================================
  Files          84      138      +54     
  Lines        4473    13482    +9009     
==========================================
+ Hits         3875    10987    +7112     
- Misses        598     2495    +1897     

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[Copilot]

Pull request overview

This PR updates the Python SDK’s ActorRuntimeConfig defaults to avoid sending an explicit drainOngoingCallTimeout value to daprd, allowing the runtime to apply its own default instead of the SDK hardcoding 60s (which can interfere with placement dissemination timing).

Changes:

• Default ActorRuntimeConfig.drain_ongoing_call_timeout to None instead of 60s.
• Omit drainOngoingCallTimeout from ActorRuntimeConfig.as_dict() when the value is None (avoid sending JSON null).
• Update and extend actor runtime config tests to reflect the new default and serialization behavior.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
dapr/actor/runtime/config.py	Changes default drain_ongoing_call_timeout to None and conditionally serializes drainOngoingCallTimeout only when set.
tests/actor/test_actor.py	Updates actor config default expectation to None.
tests/actor/test_actor_runtime.py	Updates actor runtime config default expectation to None.
tests/actor/test_actor_runtime_config.py	Updates default config tests and adds coverage asserting the key is omitted when unset and present when explicitly set.

Comments suppressed due to low confidence (1)

dapr/actor/runtime/config.py:125

• actor_type_configs uses a mutable default ([]) in the ActorRuntimeConfig.__init__ signature. This list instance will be shared across ActorRuntimeConfig() calls, which can cause cross-instance state leakage if the list is ever mutated. Prefer actor_type_configs: Optional[List[ActorTypeConfig]] = None and assign actor_type_configs or [] inside the constructor.

        drain_ongoing_call_timeout: Optional[timedelta] = None,
        drain_rebalanced_actors: Optional[bool] = True,
        reentrancy: Optional[ActorReentrancyConfig] = None,
        reminders_storage_partitions: Optional[int] = None,
        actor_type_configs: List[ActorTypeConfig] = [],
    ):

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[sicoyle]

thank you!!