Akka.Persistence 1.5.0-alpha2

Prefix Reserved

This is a prerelease version of Akka.Persistence.

There is a newer version of this package available.
See the version list below for details.

dotnet add package Akka.Persistence --version 1.5.0-alpha2

NuGet\Install-Package Akka.Persistence -Version 1.5.0-alpha2

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="Akka.Persistence" Version="1.5.0-alpha2" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

paket add Akka.Persistence --version 1.5.0-alpha2

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Akka.Persistence, 1.5.0-alpha2"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

// Install Akka.Persistence as a Cake Addin
#addin nuget:?package=Akka.Persistence&version=1.5.0-alpha2&prerelease

// Install Akka.Persistence as a Cake Tool
#tool nuget:?package=Akka.Persistence&version=1.5.0-alpha2&prerelease

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Akka.NET

Akka.NET logo

Akka.NET is a .NET port of the popular Akka project from the Scala / Java community. We are an idiomatic .NET implementation of the actor model built on top of the .NET Common Language Runtime.

Website: https://getakka.net/
Twitter 🐦: AkkaDotNet
Discussions 📣: Akka.NET GitHub Discussions
Chat 💬: Akka.NET on Discord
StackOverflow ✔️: Akka.NET on StackOverflow

Akka.NET is a .NET Foundation project.

.NET Foundation Logo

How is Akka.NET Used?

Akka.NET can be used in-process or inside large, distributed real-time systems; we support a wide variety of use cases.

Akka.NET can be used to solve the following types of problems:

Concurrency - Akka.NET actors only process messages one-at-a-time and they do so in first in, first out (FIFO) order; this means that any application state internal to an actor is automatically thread-safe without having to use locks or any other shared-memory synchronization mechanisms.
Stream Processing - Akka.NET actors and Akka.Streams make it easy to build streaming applications, used for processing incoming streams of data or incoming streams of live events such as UI or network events inside native applications.
Event-Driven Programming - actors make it easy to build event-driven applications, as actors' message-processing routines naturally express these types of designs.
Event Sourcing and CQRS - Akka.Persistence, used by actors to make their state re-entrant and recoverable across restarts or migrations between nodes, natively supports event sourcing. Akka.Persistence.Query can be used to compute CQRS-style projections and materialized views from Akka.Persistence data.
Location Transparency - Akka.Remote makes it simple for actors in remote processes to transparently communicate with each other.
Highly Available, Fault-Tolerant Distributed Systems - Akka.Cluster, Akka.Cluster.Sharding, and other tools built on top of Akka.Cluster make it possible to build highly available and fault-tolerant distributed systems by leveraging peer-to-peer programming models with topology-aware message routing and distribution.
Low Latency, High Throughput - Akka.NET aims to be low latency and high throughput, processing 10s millions of messages per second in-memory and hundreds of thousands of messages per second over remote connections.

Where Can I Learn Akka.NET?

You can start by taking the Akka.NET Bootcamp, but there are many other great learning resources for Akka.NET Online.

Build Status

Stage	Status
Build
NuGet Pack
.NET Framework Unit Tests
.NET Framework MultiNode Tests
.NET Core (Windows) Unit Tests
.NET Core (Linux) Unit Tests
.NET Core (Windows) MultiNode Tests
.NET Core (Linux) MultiNode Tests
Docs

Install Akka.NET via NuGet

If you want to include Akka.NET in your project, you can install it directly from NuGet

To install Akka.NET Distributed Actor Framework, run the following command in the Package Manager Console

PM> Install-Package Akka
PM> Install-Package Akka.Remote

And if you need F# support:

PM> Install-Package Akka.FSharp

Builds

Please see Building Akka.NET.

To access nightly Akka.NET builds, please see the instructions here.

Support

If you need help getting started with Akka.NET, there's a number of great community resources online:

Subscribe to the Akka.NET project feed on Twitter: https://twitter.com/AkkaDotNet (@AkkaDotNet)
Join the Akka.NET project Gitter chat: https://gitter.im/akkadotnet/akka.net
Ask Akka.NET questions on Stack Overflow: http://stackoverflow.com/questions/tagged/akka.net

If you and your company are interested in getting professional Akka.NET support, you can contact Petabridge for dedicated Akka.NET support.

Product	Compatible and additional computed target framework versions.
.NET	net5.0 was computed. net5.0-windows was computed. net6.0 is compatible. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed.
.NET Core	netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed.
.NET Standard	netstandard2.0 is compatible. netstandard2.1 was computed.
.NET Framework	net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed.
MonoAndroid	monoandroid was computed.
MonoMac	monomac was computed.
MonoTouch	monotouch was computed.
Tizen	tizen40 was computed. tizen60 was computed.
Xamarin.iOS	xamarinios was computed.
Xamarin.Mac	xamarinmac was computed.
Xamarin.TVOS	xamarintvos was computed.
Xamarin.WatchOS	xamarinwatchos was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

.NETStandard 2.0
- Akka (>= 1.5.0-alpha2)
- Google.Protobuf (>= 3.21.7)
net6.0
- Akka (>= 1.5.0-alpha2)
- Google.Protobuf (>= 3.21.7)

NuGet packages (47)

Showing the top 5 NuGet packages that depend on Akka.Persistence:

Package	Downloads
Akka.Cluster.Sharding Sharded actors with managed lifecycle for Akka.NET cluster. Used to distribute state in a fault-tolerant, consistent fashion over an Akka.NET cluster.	1.8M
Akka.Persistence.Sql.Common Akka.NET Persistence ADO.NET middleware	1.5M
Akka.Persistence.Query Stream based query interface for persistence journal plugins for Akka.NET	1.3M
Akka.Persistence.Query.Sql Akka.NET streams support for ADO.NET Persistence middleware.	558.0K
Akka.Persistence.Hosting Akka.Persistence Microsoft.Extensions.Hosting support.	469.9K

GitHub repositories (4)

Showing the top 4 popular GitHub repositories that depend on Akka.Persistence:

Repository	Stars
ThembisileNGQ/Akkatecture a cqrs and event sourcing framework for dotnet core using akka.net	524
axzxs2001/Asp.NetCoreExperiment 原来所有项目都移动到OleVersion目录下进行保留。新的案例装以.net 5.0为主，一部分对以前案例进行升级，一部分将以前的工作经验总结出来，以供大家参考！	353
Aaronontheweb/InMemoryCQRSReplication Akka.NET Reference Architecture - CQRS + Sharding + In-Memory Replication	138
Horusiath/AkkaCQRS Event sourcing example build on Akka.NET with persistence plugin	102

Version	Downloads	Last updated
1.5.31	4,680	11/11/2024
1.5.30	21,709	10/3/2024
1.5.29	5,186	10/1/2024
1.5.28	31,365	9/4/2024
1.5.28-beta1	592	8/23/2024
1.5.27.1	43,340	7/26/2024
1.5.27	670	7/25/2024
1.5.27-beta2	416	7/3/2024
1.5.27-beta1	373	7/3/2024
1.5.26	63,640	6/27/2024
1.5.25	47,581	6/14/2024
1.5.24	12,726	6/7/2024
1.5.23	986	6/6/2024
1.5.22	2,644	6/3/2024
1.5.21	5,836	5/28/2024
1.5.20	39,720	4/29/2024
1.5.19	16,065	4/15/2024
1.5.18	44,271	3/12/2024
1.5.17.1	12,363	3/2/2024
1.5.17	1,325	2/29/2024
1.5.16	37,244	1/29/2024
1.5.15	51,440	1/10/2024
1.5.14	41,418	11/3/2023
1.5.13	107,648	9/18/2023
1.5.13-beta1	1,244	8/25/2023
1.5.12	92,435	8/2/2023
1.5.11	4,014	7/27/2023
1.5.10	9,034	7/25/2023
1.5.9	15,141	7/17/2023
1.5.8	51,415	6/15/2023
1.5.7	40,420	5/17/2023
1.5.6	12,735	5/8/2023
1.5.5	34,045	5/4/2023
1.5.4	46,812	4/25/2023
1.5.3	4,693	4/20/2023
1.5.2	51,735	4/6/2023
1.5.1	33,992	3/15/2023
1.5.0	46,524	3/2/2023
1.5.0-beta6	1,860	3/1/2023
1.5.0-beta5	1,271	3/1/2023
1.5.0-beta4	1,402	2/28/2023
1.5.0-beta3	2,079	2/27/2023
1.5.0-beta2	2,207	2/23/2023
1.5.0-beta1	1,342	2/20/2023
1.5.0-alpha4	1,772	2/1/2023
1.5.0-alpha3	1,668	11/15/2022
1.5.0-alpha2	1,347	10/17/2022
1.5.0-alpha1	8,301	8/22/2022
1.4.51	21,716	6/28/2023
1.4.50	6,218	3/15/2023
1.4.49	34,491	1/27/2023
1.4.49-beta1	1,388	1/11/2023
1.4.48	55,110	1/5/2023
1.4.47	14,882	12/9/2022
1.4.46	45,116	11/15/2022
1.4.45	40,181	10/19/2022
1.4.44	9,789	10/17/2022
1.4.43	41,884	9/27/2022
1.4.42	8,799	9/23/2022
1.4.41	173,557	8/31/2022
1.4.40	56,805	7/22/2022
1.4.39	103,923	6/1/2022
1.4.38	45,939	5/6/2022
1.4.37	19,092	4/14/2022
1.4.36	25,721	4/5/2022
1.4.35	90,056	3/18/2022
1.4.34	16,566	3/7/2022
1.4.33	22,567	2/14/2022
1.4.32	43,661	1/18/2022
1.4.31	78,278	12/21/2021
1.4.30	3,648	12/20/2021
1.4.29	4,944	12/13/2021
1.4.28	70,171	11/10/2021
1.4.27	62,060	10/11/2021
1.4.26	8,184	9/28/2021
1.4.25	39,804	9/8/2021
1.4.24	14,468	8/17/2021
1.4.23	6,432	8/10/2021
1.4.22	8,723	8/5/2021
1.4.21	37,586	6/16/2021
1.4.21-beta1	2,241	6/4/2021
1.4.20	37,916	5/12/2021
1.4.19	26,536	4/28/2021
1.4.18	32,080	3/23/2021
1.4.17	13,329	3/10/2021
1.4.16	49,718	1/22/2021
1.4.15	6,358	1/20/2021
1.4.14	24,156	12/30/2020
1.4.13	6,580	12/16/2020
1.4.12	69,638	11/16/2020
1.4.11	22,995	11/5/2020
1.4.10	52,264	8/20/2020
1.4.9	26,270	7/21/2020
1.4.8	61,683	6/17/2020
1.4.7	16,268	5/27/2020
1.4.6	12,415	5/12/2020
1.4.5	18,381	4/29/2020
1.4.4	48,068	3/31/2020
1.4.3	13,697	3/18/2020
1.4.2	13,186	3/13/2020
1.4.1	46,600	3/11/2020
1.4.1-rc3	3,843	3/10/2020
1.4.1-rc2	2,562	3/10/2020
1.4.1-rc1	4,378	2/28/2020
1.4.0-beta4	3,787	1/28/2020
1.4.0-beta3	8,953	10/30/2019
1.4.0-beta2	5,278	9/23/2019
1.4.0-beta1	3,925	7/19/2019
1.3.19	385	5/2/2024
1.3.18	25,690	3/9/2020
1.3.17	57,028	12/20/2019
1.3.16	16,144	11/14/2019
1.3.15	86,763	9/23/2019
1.3.14	43,873	7/30/2019
1.3.13	55,270	4/30/2019
1.3.12	36,856	3/14/2019
1.3.11	37,653	12/18/2018
1.3.10	93,384	11/2/2018
1.3.9	86,632	8/23/2018
1.3.8	27,385	6/5/2018
1.3.7	18,855	5/15/2018
1.3.6	9,119	4/17/2018
1.3.5	24,571	2/22/2018
1.3.4	7,515	2/1/2018
1.3.3	6,582	1/19/2018
1.3.2	40,445	10/21/2017
1.3.1	26,702	9/5/2017
1.3.0	13,602	8/11/2017
1.2.3.43-beta	6,513	7/10/2017
1.2.3.41-beta	2,866	7/10/2017
1.2.2.40-beta	5,990	6/28/2017
1.2.2.39-beta	2,754	6/28/2017
1.2.1.38-beta	5,723	6/23/2017
1.2.1.37-beta	2,828	6/23/2017
1.2.0.36-beta	16,380	4/13/2017
1.2.0.35-beta	2,763	4/13/2017
1.2.0.34-beta	2,696	4/12/2017
1.2.0.33-beta	2,877	4/12/2017
1.1.3.32-beta	15,328	1/23/2017
1.1.3.31-beta	2,972	1/23/2017
1.1.2.30-beta	20,015	9/22/2016
1.1.2.29-beta	3,042	9/22/2016
1.1.1.28-beta	8,098	7/16/2016
1.1.1.27-beta	2,771	7/16/2016
1.1.0.26-beta	3,190	7/7/2016
1.0.8.25-beta	4,158	4/26/2016
1.0.8.24-beta	2,081	4/26/2016
1.0.7.18-beta	2,532	4/6/2016
1.0.6.17-beta	10,087	1/18/2016
1.0.6.16-beta	1,624	1/18/2016
1.0.5.15-beta	10,518	12/3/2015
1.0.5.14-beta	1,849	12/3/2015
1.0.4.12-beta	3,278	8/8/2015
1.0.3-beta	2,085	6/12/2015
1.0.2.9-beta	1,958	6/3/2015
1.0.1-pre1504282013	2,037	4/28/2015
1.0.0-pre1504092226	1,511	4/9/2015
1.0.0-dev1504032244	1,412	4/3/2015
0.8.0-pre1502120115	2,916	2/12/2015

Akka.NET v1.5.0-alpha2 is a maintenance release for Akka.NET v1.5 that contains numerous performance improvements in critical areas, including core actor message processing and Akka.Remote.
Performance Fixes**
[remove delegate allocation from `ForkJoinDispatcher` and `DedicatedThreadPool`](https://github.com/akkadotnet/akka.net/pull/6162)
[eliminate `Mailbox` delegate allocations](https://github.com/akkadotnet/akka.net/pull/6162)
[Reduce `FSM<TState, TData>` allocations](https://github.com/akkadotnet/akka.net/pull/6162)
[removed boxing allocations inside `FSM.State.Equals`](https://github.com/akkadotnet/akka.net/pull/6196)
[Eliminate `DefaultLogMessageFormatter` allocations](https://github.com/akkadotnet/akka.net/pull/6166)
In sum you should expect to see total memory consumption, garbage collection, and throughput improve when you upgrade to Akka.NET v1.5.0-alpha2.
Other Features and Improvements**
[DData: Suppress gossip message from showing up in debug log unless verbose debug logging is turned on](https://github.com/akkadotnet/akka.net/pull/6089)
[TestKit: TestKit automatically injects the default TestKit default configuration if an ActorSystem is passed into its constructor](https://github.com/akkadotnet/akka.net/pull/6092)
[Sharding: Added a new `GetEntityLocation` query message to retrieve an entity address location in the shard region](https://github.com/akkadotnet/akka.net/pull/6107)
[Sharding: Fixed `GetEntityLocation` uses wrong actor path](https://github.com/akkadotnet/akka.net/pull/6121)
[Akka.Cluster and Akka.Cluster.Sharding: should throw human-friendly exception when accessing cluster / sharding plugins when clustering is not running](https://github.com/akkadotnet/akka.net/pull/6169)
[Akka.Cluster.Sharding: Add `HashCodeMessageExtractor` factory](https://github.com/akkadotnet/akka.net/pull/6173)
[Akka.Persistence.Sql.Common: Fix `DbCommand.CommandTimeout` in `BatchingSqlJournal`](https://github.com/akkadotnet/akka.net/pull/6175)