apple/swift-distributed-actors

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Peer-to-peer cluster implementation for Swift Distributed Actors

Stars: 679
Forks: 84
Open beginner issues: 0
Indexed issues: 167

Dominant language: Swift
License: Apache-2.0
Last GitHub push: Jun 22, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue
PR merge metrics: No merged PRs in 30d

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167 open issues indexed

SwiftProtobuf: Consider swift_access_level file option Open

discussion i:protobuf

apple/swift-distributed-actors#59 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Ensure that during shutdown, no attempts to interpret using Stopped behavior Open

1 - triaged t:actor

apple/swift-distributed-actors#60 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
TestKit cleanups and making consistent Open

1 - triaged t:testkit

apple/swift-distributed-actors#64 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Docs: Glossary Open

1 - triaged area/documentation

apple/swift-distributed-actors#83 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Remove system._cluster as we have the clusterControl now Open

cleanup follow-up size/S t:cluster:all

apple/swift-distributed-actors#111 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Membership tombstone timeout and "gc" Open

1 - triaged t:cluster:all t:cluster:membership

apple/swift-distributed-actors#134 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Membership with many role leaders Open

t:cluster:membership

apple/swift-distributed-actors#140 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make nice ranges for IDs we use for system serializers Open

1 - triaged t:serialization

apple/swift-distributed-actors#142 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Protobuf align enum style Open

1 - triaged t:serialization

apple/swift-distributed-actors#144 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
"Single node" mode should move itself to up and signal this event? Open

size/S t:cluster:membership

apple/swift-distributed-actors#145 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider renaming node.systemName Open

1 - triaged t:cluster:all

apple/swift-distributed-actors#147 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Smarter and more Leadership election schemes Open

1 - triaged t:cluster:all t:cluster:membership

apple/swift-distributed-actors#149 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Handle SilentDeadLetter in DeadLetterOffice Open

1 - triaged size/S t:actor

apple/swift-distributed-actors#153 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Membership cleanup: implement join/joining in terms of mark() Open

follow-up size/S t:cluster:membership

apple/swift-distributed-actors#154 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cluster: joingSeedNodes() Open

1 - triaged size/S t:cluster:all t:cluster:membership

apple/swift-distributed-actors#163 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
FIXME: The Membership.apply method is too complex Open

follow-up t:cluster:membership

apple/swift-distributed-actors#194 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider Receptable in TestKit Open

1 - triaged help wanted t:actor t:testkit

apple/swift-distributed-actors#282 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Allow users to ActorNaming.prefixed(_:suffixScheme:) Open

discussion t:actor

apple/swift-distributed-actors#309 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Test and allow binding/joining nodes behind NAT (think about binding to 0.0.0.0?) Open

1 - triaged kind/bug t:cluster:all

apple/swift-distributed-actors#310 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Allow Backoff.constant to have random factor Open

1 - triaged help wanted size/S t:timers

apple/swift-distributed-actors#314 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make sure a periodic join(someone) works fine if someone remains the same node Open

1 - triaged size/S t:cluster:all t:cluster:membership t:service-discovery

apple/swift-distributed-actors#316 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Seed nodes: DNS node discovery Open

1 - triaged size/S t:cluster:all t:cluster:membership t:service-discovery

apple/swift-distributed-actors#317 · 2 comments · 0 reactions · 2 assignees · Indexed Sep 14, 2026
Optimize singleton hand-over/take-over Open

1 - triaged t:cluster:singleton

apple/swift-distributed-actors#329 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Investigate and break strong reference cycle to ActorSystem Open

1 - triaged 2 - pick next kind/bug memory leak

apple/swift-distributed-actors#338 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cluster: when down(self) is issued, run last election and stop leadership actors? Open

discussion t:cluster:all t:cluster:membership

apple/swift-distributed-actors#351 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cluster: Harsh tests for "down node, yet it extends an handshake back" Open

t:cluster:all t:tests

apple/swift-distributed-actors#355 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
IntegrationTest: Starting and stopping many nodes, seeing them get downed etc Open

1 - triaged t:cluster:all

apple/swift-distributed-actors#359 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Random thought: Should Receptionists be expressed as plugins, enabled by default? Open

9 - maybe some day discussion t:receptionist

apple/swift-distributed-actors#365 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Write a "production checklist" with hints what to think about when going prod Open

1 - triaged area/documentation

apple/swift-distributed-actors#379 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Integration test kill -9-ing a node Open

1 - triaged t:cluster:all t:cluster:gossip

apple/swift-distributed-actors#381 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
More thought about node replacements, and effect in high-level API Open

1 - triaged t:cluster:membership

apple/swift-distributed-actors#384 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CASPaxos implementation Open

1 - triaged 9 - maybe some day size/L t:consensus

apple/swift-distributed-actors#387 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Improve handshake reject on node address mismatch Open

size/S t:cluster:all

apple/swift-distributed-actors#388 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
TestKit: remove toBe and only use toEqual Open

help wanted size/S t:testkit

apple/swift-distributed-actors#391 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
SWIM: Unlock ignored_test_swim_shouldNotifyClusterAboutUnreachableNode_andThenReachableAgain Open

1 - triaged kind/bug t:cluster:swim t:tests

apple/swift-distributed-actors#405 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Model the membership merges using TLA+ Open

1 - triaged help wanted t:cluster:membership

apple/swift-distributed-actors#407 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
We should not need .joining nodes to participate on convergence() Open

1 - triaged t:cluster:all t:cluster:membership

apple/swift-distributed-actors#412 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
When merging gossips, also potentially apply/emit reachability change. Open

1 - triaged discussion t:cluster:membership t:cluster:swim

apple/swift-distributed-actors#413 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Integration test: zombie node comes back Open

1 - triaged t:cluster:downing t:cluster:membership t:tests

apple/swift-distributed-actors#414 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Test: add test to prune not existing member from SeenTable Open

1 - triaged help wanted t:cluster:membership t:tests

apple/swift-distributed-actors#416 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Membership upNumbers, make them actually work Open

1 - triaged size/M t:cluster:membership t:cluster:singleton

apple/swift-distributed-actors#417 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enable illegal membership change assertions Open

1 - triaged help wanted t:cluster:membership

apple/swift-distributed-actors#418 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement nodes .leaving cluster allowing to perform graceful leaving Open

1 - triaged t:cluster:membership

apple/swift-distributed-actors#419 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Service Discovery: Implement and adopt .discovery file service/node discovery Open

1 - triaged size/S t:cluster:all t:service-discovery

apple/swift-distributed-actors#440 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Given Actor Tree removal, should Terminated carry "reason" stopped/failed(Error)? Open

1 - triaged discussion t:actor t:supervision

apple/swift-distributed-actors#444 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support TestProbe to perform a watch(:with:) Open

1 - triaged size/S t:actor

apple/swift-distributed-actors#469 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Context propagation mechanism for actors: Baggage Open

1 - triaged t:observability

apple/swift-distributed-actors#476 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Instrumentation: Actor "suspend" should be reported Open

1 - triaged t:observability

apple/swift-distributed-actors#478 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Instrumentation: Instrument timers Open

1 - triaged help wanted t:observability

apple/swift-distributed-actors#480 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cluster Receptionist allow local publish delay Open

1 - triaged t:cluster:all t:receptionist

apple/swift-distributed-actors#481 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apple/swift-distributed-actors

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