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ResponseCompletionSource: RunContinuationsAsynchronously#9724

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ReubenBond merged 1 commit intodotnet:mainfrom
ReubenBond:fix/rcs-rca
Oct 22, 2025
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ResponseCompletionSource: RunContinuationsAsynchronously#9724
ReubenBond merged 1 commit intodotnet:mainfrom
ReubenBond:fix/rcs-rca

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@ReubenBond ReubenBond commented Oct 22, 2025

There are cases where response continuations can block a grain. Eg, @ledjon-behluli ran into a scenario where in a small console app, calling Console.ReadKey() immediately after awaiting a grain call could result in the grain's scheduler being blocked. To fix this universally, we should set RunContinuationsAsynchronously = true in ResponseCompletionSource.

This can have a negative impact on throughput since it causes continuations to be scheduled via the tasks scheduler, but it avoids the above issue.

Microsoft Reviewers: Open in CodeFlow

@ReubenBond ReubenBond merged commit 95fa056 into dotnet:main Oct 22, 2025
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@ReubenBond ReubenBond deleted the fix/rcs-rca branch October 22, 2025 22:57
ledjon-behluli pushed a commit to ledjon-behluli/orleans that referenced this pull request Oct 26, 2025
github-merge-queue bot pushed a commit that referenced this pull request Oct 31, 2025
* retire and purge state machines

* Update src/Orleans.Journaling/StateMachineManager.cs

Co-authored-by: Reuben Bond <203839+ReubenBond@users.noreply.github.com>

* move comments up

* wip

* time-based retirement logic

* last touches

* remove test project

* remove unused usings

* prevent duplicate key error during state machine resurrection

* ensure buffered data is re-applied if machine comes back

* remove hacky assertion in tests

* Update src/Orleans.Journaling/StateMachineManager.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/Orleans.Journaling/StateMachineManager.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update test/Orleans.Journaling.Tests/StateMachineManagerTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update test/Orleans.Journaling.Tests/StateMachineManagerTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update test/Orleans.Journaling.Tests/StateMachineManagerTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fix table creation logging to reflect existing tables correctly (#9696)

The `CreateIfNotExistsAsync` method's response will have a 409-statuscode if the table already exists and will always return the `TableItem` if the call is successful.

* Fix ZooKeeper CI tests: correct service name and use official Docker image (#9699)

* Initial plan

* Fix ZooKeeper CI tests: correct service name and use specific image tag

Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

* Use official ZooKeeper Docker image instead of bitnami

Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

* Fix Consul CI tests by using compatible Consul version (#9701)

* Fix Consul key format to comply with allowed characters

Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

* Use custom encoding for Consul keys instead of URL encoding

Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

* Simplify encoding logic to handle both IPv4 and IPv6

Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

* Revert breaking changes and use older Consul version for tests

Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

* Remove explicit ActivityStatusCode.Ok setting to comply with OpenTelemetry specification (#9703)

* Initial plan

* Remove explicit ActivityStatusCode.Ok per OpenTelemetry spec

Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: ReubenBond <203839+ReubenBond@users.noreply.github.com>

* chore(deps): bump dotnet-sdk from 9.0.303 to 9.0.305 (#9677)

Bumps [dotnet-sdk](https://github.com/dotnet/sdk) from 9.0.303 to 9.0.305.
- [Release notes](https://github.com/dotnet/sdk/releases)
- [Commits](dotnet/sdk@v9.0.303...v9.0.305)

---
updated-dependencies:
- dependency-name: dotnet-sdk
  dependency-version: 9.0.305
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Fix race condition in `TransactionInfo.Fork` `PendingCalls` increment (#9702)

* [FIX] Potential NRE in the activation repartitioner (#9713)

fix potentiall NRE in the activation repartioner

* Remove infinite timespan reminder checks (#9715)

* Timeout.InfiniteTimeSpan is not allowed for reminders

* Specifically check for InfiniteTimeSpan to make clear it's usage is not allowed (and to allow for an eventual future change of the InfiniteTimeSpan value)

---------

Co-authored-by: Jerremy Koot <jerremy.koot@gmail.com>

* ResponseCompletionSource: RunContinuationsAsynchronously (#9724)

* chore(deps): bump dotnet-sdk from 9.0.305 to 9.0.306 (#9720)

Bumps [dotnet-sdk](https://github.com/dotnet/sdk) from 9.0.305 to 9.0.306.
- [Release notes](https://github.com/dotnet/sdk/releases)
- [Commits](dotnet/sdk@v9.0.305...v9.0.306)

---
updated-dependencies:
- dependency-name: dotnet-sdk
  dependency-version: 9.0.306
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Add `BigInteger` codec (#9669)

* StateMachineManager: start work loop during activation (#9725)

* Flag PostgreSQL as asynchronous (#9705)

Changed isSynchronousAdoNetImplementation from true to false for PostgreSQL thanks to updates in Npgsql 8.0.
npgsql/npgsql#1130

* Enable GitHub merge queue (#9727)

Enable merge queue

* Add missing validation for the NATS stream provider (#9668)

Add missing validation for the Nats stream provider

* `ActivationDataActivatorProvider`: run grain constructor on grain scheduler (#9726)

* ActivationDataActivatorProvider: always run grain constructor on ActivationTaskScheduler

* ActivationDataActivatorProvider: always run grain constructor on ActivationTaskScheduler

* Modifying Endpoint to use Pascale Casing as EndPoint for consistency (#9671)

Co-authored-by: Ramzi Mourtada <ramourt@microsoft.com>

* treat retirement tracker as a first-class (internal) machine

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: Reuben Bond <203839+ReubenBond@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Egil Hansen <egil@assimilated.dk>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Bk <bknote71@gmail.com>
Co-authored-by: Da-Teach <da_teach@thehackerwithin.com>
Co-authored-by: Jerremy Koot <jerremy.koot@gmail.com>
Co-authored-by: Gutemberg Ribeiro <gutemberg@outlook.com>
Co-authored-by: Burak Büyükatlı <burak.buyukatli@gmail.com>
Co-authored-by: Ramzi Mourtada <ramzimort@gmail.com>
Co-authored-by: Ramzi Mourtada <ramourt@microsoft.com>
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