Akka.DistributedData.LightningDB 1.4.21

Replicated data using CRDT structures

Install-Package Akka.DistributedData.LightningDB -Version 1.4.21
dotnet add package Akka.DistributedData.LightningDB --version 1.4.21
<PackageReference Include="Akka.DistributedData.LightningDB" Version="1.4.21" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Akka.DistributedData.LightningDB --version 1.4.21
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Akka.DistributedData.LightningDB, 1.4.21"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Akka.DistributedData.LightningDB as a Cake Addin
#addin nuget:?package=Akka.DistributedData.LightningDB&version=1.4.21

// Install Akka.DistributedData.LightningDB as a Cake Tool
#tool nuget:?package=Akka.DistributedData.LightningDB&version=1.4.21
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

Maintenance Release for Akka.NET 1.4**
Akka.NET v1.4.21 is a significant release that includes major performance improvements, bug fixes, and a major update to the [Akka.DependencyInjection NuGet package](https://getakka.net/articles/actors/dependency-injection.html).
Performance Improvements**
Akka.NET v1.4.21 includes some major performance fixes and improvements:
[`Ask` is now ~10% faster](https://github.com/akkadotnet/akka.net/pull/5051)
[`MurmurHash` is 33% faster and allocates 0 memory](https://github.com/akkadotnet/akka.net/pull/5028) - used _heavily_ in DData, Cluster Sharding, and Consistent Hash Routers
`ActorPath.Parse` went from 1672 ns/op to 527 ns/op - a 68% improvement in throughput and a 50% reduction in memory. See [#5039](https://github.com/akkadotnet/akka.net/pull/5039) and [#5068](https://github.com/akkadotnet/akka.net/pull/5068).
[Akka.Remote: remove `ActorPath.ToString` call from `ResolveActorRefWithLocalAddress`](https://github.com/akkadotnet/akka.net/pull/5034)
Important**: [Revert `ThreadPool.SetMinThreads(0,0)`](https://github.com/akkadotnet/akka.net/pull/5059) - based on the input from users on "[Akka.NET v1.4.19: ChannelExecutor performance data](https://github.com/akkadotnet/akka.net/discussions/4983)"
Our observed performance numbers for Akka.Remote show a significant increase in performance for v1.4.21 over v1.4.20:
Before*
```
PS> dotnet run -c Release --framework netcoreapp3.1
OSVersion:                         Microsoft Windows NT 6.2.9200.0
ProcessorCount:                    16
ClockSpeed:                        0 MHZ
Actor Count:                       32
Messages sent/received per client: 200000  (2e5)
Is Server GC:                      True
Thread count:                      109
Num clients, Total [msg], Msgs/sec, Total [ms]
1,  200000,    113379,    1764.56
5, 1000000,    186429,    5364.05
10, 2000000,    185340,   10791.11
15, 3000000,    183218,   16374.06
20, 4000000,    179824,   22244.63
25, 5000000,    182716,   27365.89
30, 6000000,    182039,   32960.61
```
After*
```
PS> dotnet run -c Release --framework netcoreapp3.1
OSVersion:                         Microsoft Windows NT 6.2.9200.0
ProcessorCount:                    16
ClockSpeed:                        0 MHZ
Actor Count:                       32
Messages sent/received per client: 200000  (2e5)
Is Server GC:                      True
Thread count:                      111
Num clients, Total [msg], Msgs/sec, Total [ms]
1,  200000,    109770,    1822.14
5, 1000000,    192902,    5184.79
10, 2000000,    191663,   10435.53
15, 3000000,    191339,   15679.11
20, 4000000,    192725,   20755.78
25, 5000000,    189754,   26350.14
30, 6000000,    189772,   31617.20
```
> N.B. these after numbers don't benefit from the performance benefits we observed in v1.4.20 when we invoked `ThreadPool.SetMinThreads(0,0)`, which makes them even more impressive.
Akka.DependencyInjection Updates**
We had one major issue we implemented in v1.4.21 for Akka.DependencyInjection: [Abstraction of `ServiceProvider`, Improving Akka.DependencyInjection ](https://github.com/akkadotnet/akka.net/pull/4814)
What this change did was:
Deprecate the `Akka.DependencyInjection.ServiceProvider` class in favor of the `Akka.DependencyInjection.DependencyResolver` class - to avoid namespace collision with Microsoft.Extensions.DependencyInjection.ServiceProvider;
Deprecates the `Akka.DependencyInjection.ServiceProviderSetup` class in favor of the `Akka.DependencyInjection.DependencyResolverSetup` class for consistency reasons;
`Akka.DependencyInjection.DependencyResolver` now takes an input of type [`IDependencyResolver`](https://getakka.net/api/Akka.DependencyInjection.IDependencyResolver.html), which allows users to abstract away the `IServiceProvider` and mock / replace it during unit testing; and
Added some non-generic `Props` methods for dynamically spawning actors via DI.
All of these changes are backwards-compatible with v1.4.20 and earlier - and the deprecation warnings will appear in your code when you upgrade. If you run into any [issues upgrading to Akka.DependencyInjection v1.4.21 please reply on this thread](https://github.com/akkadotnet/akka.net/discussions/5070)!
Other Changes and Fixes**
[Akka.Streams: A couple of fixes affecting the `FileSubscriber`](https://github.com/akkadotnet/akka.net/pull/5035)
[Akka.DistributedData: memory leak when recovering events from LMDB data store](https://github.com/akkadotnet/akka.net/issues/5022)
[Akka.DistributedData: port `VectorClock` performance optimizations to `VersionVector` and similar types](https://github.com/akkadotnet/akka.net/issues/4956)
To see the [full set of fixes in Akka.NET v1.4.21, please see the milestone on Github](https://github.com/akkadotnet/akka.net/milestone/51).
| COMMITS | LOC+ | LOC- | AUTHOR |
| --- | --- | --- | --- |
| 5 | 34 | 24 | Aaron Stannard |
| 4 | 196 | 77 | Gregorius Soedharmo |
| 3 | 3 | 3 | dependabot[bot] |
| 1 | 2 | 2 | Wessel Kranenborg |
| 1 | 1 | 1 | Martijn Schoemaker |

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Akka.DistributedData.LightningDB:

Package Downloads
Akka.Cluster.Sharding
Sharded actors with managed lifecycle for Akka.NET cluster

GitHub repositories

This package is not used by any popular GitHub repositories.

Version History

Version Downloads Last updated
1.4.21 517 6/16/2021
1.4.21-beta1 258 6/4/2021
1.4.20 2,774 5/12/2021
1.4.19 2,786 4/28/2021
1.4.18 5,494 3/23/2021
1.4.17 3,126 3/10/2021
1.4.16 19,425 1/22/2021
1.4.15 575 1/20/2021
1.4.14 3,267 12/30/2020
1.4.13 1,198 12/16/2020
1.4.12 16,053 11/16/2020
1.4.11 7,158 11/5/2020
1.4.10 11,334 8/20/2020
1.4.9 8,269 7/21/2020
1.4.8 17,848 6/17/2020
1.4.7 2,995 5/27/2020
1.4.6-beta 201 5/12/2020
1.4.5-beta 196 4/29/2020
1.4.4-beta 212 3/31/2020
1.4.3-beta 223 3/18/2020
1.4.2-beta 245 3/13/2020
1.4.1-rc3 235 3/10/2020
1.4.1-rc2 194 3/10/2020
1.4.1-rc1 235 2/28/2020
1.4.1-beta 198 3/11/2020
1.4.0-beta4 295 1/28/2020
1.4.0-beta3 278 10/30/2019
1.4.0-beta2 245 9/23/2019
1.4.0-beta1 290 7/19/2019
1.4.0-beta 219 10/30/2019
1.3.18-beta 227 3/9/2020
1.3.17-beta 535 12/20/2019
1.3.16-beta 247 11/14/2019
1.3.15-beta 230 9/23/2019
1.3.14-beta 258 7/30/2019
1.3.13-beta 327 4/30/2019
1.3.12-beta 1,510 3/14/2019
1.3.11-beta 1,018 12/18/2018
1.3.10-beta 718 11/2/2018
1.3.9-beta68 834 8/23/2018
1.3.9-beta67 444 8/23/2018
1.3.9-beta 424 8/30/2018
1.3.8-beta66 912 6/5/2018
1.3.8-beta65 513 6/5/2018
1.3.7-beta64 620 5/15/2018
1.3.7-beta63 517 5/15/2018
1.3.6-beta62 668 4/17/2018
1.3.6-beta61 459 4/17/2018
1.3.5-beta60 527 2/22/2018
1.3.5-beta59 515 2/22/2018
1.3.4-beta58 552 2/1/2018
1.3.4-beta57 561 2/1/2018
1.3.3-beta56 573 1/19/2018
1.3.3-beta55 598 1/19/2018
1.3.2-beta54 525 10/21/2017
1.3.2-beta53 511 10/21/2017
1.3.2-beta 514 10/24/2017
1.3.1-beta52 519 9/5/2017
1.3.1-beta51 535 9/5/2017
1.3.0-beta50 524 8/18/2017
1.3.0-beta48 542 8/17/2017
1.3.0-beta47 530 8/17/2017
1.3.0-beta46 545 8/11/2017
1.2.3.43-beta 525 7/10/2017
1.2.3.41-beta 525 7/10/2017
1.2.2.40-beta 533 6/28/2017
1.2.2.39-beta 583 6/28/2017
1.2.1.38-beta 570 6/23/2017
1.2.1.37-beta 529 6/23/2017
1.2.0.36-beta 577 4/13/2017
1.2.0.35-beta 545 4/13/2017