Phobos.Tracing 2.12.0
Distributed tracing support for Akka.NET ActorSystems.
Install-Package Phobos.Tracing -Version 2.12.0
dotnet add package Phobos.Tracing --version 2.12.0
<PackageReference Include="Phobos.Tracing" Version="2.12.0" />
paket add Phobos.Tracing --version 2.12.0
Paket is a third-party, open source alternative to the NuGet client.
# Phobos

[Phobos](https://phobos.petabridge.com/)™ is an observability plugin for [Akka.NET](https://getakka.net/) that provides [OpenTelemetry](https://opentelemetry.io/)-based tracing, metrics, and log aggregation.
[Phobos is available for purchase on Sdkbin](https://sdkbin.com/publisher/petabridge/product/phobos)
## Installation
Phobos plugs directly into your Akka.NET `ActorSystem` and immediately starts providing automatic tracing, metrics, and log correlation without you having to write any instrumentation code yourself.
### 1 - Add the `Phobos.Hosting` NuGet Package
```shell
dotnet add package Phobos.Hosting
```
### 2 - Configure OpenTelemetry to Use Phobos Metrics and Tracing
```csharp
services // IServiceCollection
.AddOpenTelemetry()
.ConfigureResource(builder =>
{
builder
.AddEnvironmentVariableDetector()
.AddTelemetrySdk()
.AddServiceVersionDetector();
})
.UseOtlpExporter(OtlpExportProtocol.Grpc, new Uri(otlpEndpoint))
.WithMetrics(c =>
{
c.AddRuntimeInstrumentation()
.AddAspNetCoreInstrumentation()
.AddHttpClientInstrumentation()
.AddPhobosInstrumentation(); // Phobos metrics
})
.WithTracing(c =>
{
c.AddHttpClientInstrumentation()
.AddAspNetCoreInstrumentation()
.AddEntityFrameworkCoreInstrumentation()
.AddSqlClientInstrumentation()
.AddPhobosInstrumentation(); // Phobos traces
});
```
### 3 - Add Phobos to Your `ActorSystem`
```csharp
public static IServiceCollection AddUserServiceAkka(this IServiceCollection services,
Action<AkkaConfigurationBuilder, IServiceProvider> additionalConfig)
{
return services.AddAkka(ActorSystemName, (builder, sp) =>
{
builder.AddUserServiceActors()
WithPhobos(AkkaRunMode.Local, configOptions => {});
additionalConfig.Invoke(builder, sp);
});
}
```
And you're done! Akka.NET traces / metrics / logs will now be automatically exported along with your ASP.NET Core, Entity Framework, SqlClient, HttpClient, and other .NET OpenTelemetry data!
For more detailed instructions, please see the [Phobos QuickStart Tutorial](https://phobos.petabridge.com/articles/quickstart.html)
## What Data Does Phobos Capture?
You can see our full list of automatically collected traces, metrics, and log events here: [https://phobos.petabridge.com/articles/captured-data.html](https://phobos.petabridge.com/articles/captured-data.html)
### Can I Configure What Phobos Collects?
Absolutely - [Phobos has finely tuneable noise control capabilities](https://phobos.petabridge.com/articles/trace-filtering.html) that allow you to configure what types of data Phobos collects fronm your application.
### What's the Performance Impact of Phobos on Akka.NET?
Tracing and metrics collection always have an amount of instrumentation overhead - you can [view our latest Phobos performance figures and best practices here](https://phobos.petabridge.com/articles/performance.html).
Copyright 2018-2025 [Petabridge](https://petabridge.com/), LLC
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net8.0
- Akka (>=1.5.67)
- Google.Protobuf (>=3.26.1)
- OpenTelemetry (>=1.15.3)
- Phobos.Actor.Common (>=1.1.2)
netstandard2.0
- Akka (>=1.5.67)
- Google.Protobuf (>=3.26.1)
- OpenTelemetry (>=1.15.3)
- Phobos.Actor.Common (>=1.1.2)
| Version | Downloads | Last Updated | |
|---|---|---|---|
| 2.12.1 | 341 | 14 day(s) ago | |
| 2.12.0 Current | 15,098 | 135 day(s) ago | |
| 2.11.3 | 2,495 | 156 day(s) ago | |
| 2.11.2 | 349 | 162 day(s) ago | |
| 2.11.1 | 304 | 163 day(s) ago | |
| 2.11.0 | 1,839 | 191 day(s) ago | |
| 2.10.5 | 15,610 | 216 day(s) ago | |
| 2.10.4 | 6,519 | 266 day(s) ago | |
| 2.10.3 | 270 | 266 day(s) ago | |
| 2.10.2 | 28,374 | 336 day(s) ago | |
| 2.10.1 | 2,588 | 353 day(s) ago | |
| 2.10.0 | 1,954 | 372 day(s) ago | |
| 2.9.1 | 739 | 379 day(s) ago | |
| 2.9.0 | 1,463 | 394 day(s) ago | |
| 2.8.5 | 11,574 | 468 day(s) ago | |
| 2.8.4 | 4,514 | 514 day(s) ago | |
| 2.8.3 | 8,446 | 561 day(s) ago | |
| 2.8.2 | 3,456 | 595 day(s) ago | |
| 2.8.1 | 1,152 | 596 day(s) ago | |
| 2.8.0 | 2,048 | 603 day(s) ago | |
| 2.7.0 | 1,309 | 610 day(s) ago | |
| 2.6.2 | 1,720 | 629 day(s) ago | |
| 2.6.1 | 658 | 636 day(s) ago | |
| 2.6.0 | 1,681 | 644 day(s) ago | |
| 2.5.4 | 107,055 | 805 day(s) ago | |
| 2.5.3 | 1,255 | 815 day(s) ago | |
| 2.5.2 | 1,111 | 821 day(s) ago | |
| 2.5.1 | 19,006 | 904 day(s) ago | |
| 2.5.0 | 24,255 | 940 day(s) ago | |
| 2.4.5 | 3,030 | 974 day(s) ago | |
| 2.4.4 | 1,109 | 1009 day(s) ago | |
| 2.4.3 | 9,921 | 1016 day(s) ago | |
| 2.4.2 | 12,180 | 1087 day(s) ago | |
| 2.4.1 | 12,070 | 1147 day(s) ago | |
| 2.4.0 | 876 | 1150 day(s) ago | |
| 2.3.1 | 8,721 | 1205 day(s) ago | |
| 2.3.0 | 13,096 | 1231 day(s) ago | |
| 2.2.1 | 1,328 | 1234 day(s) ago | |
| 2.2.0 | 2,348 | 1288 day(s) ago | |
| 2.2.0-beta2 | 454 | 1289 day(s) ago | |
| 2.1.1 | 696 | 1064 day(s) ago | |
| 2.1.0 | 2,295 | 1333 day(s) ago | |
| 2.1.0-beta2 | 706 | 1421 day(s) ago | |
| 2.1.0-beta1 | 592 | 1494 day(s) ago | |
| 2.0.6 | 66,063 | 1553 day(s) ago | |
| 2.0.5 | 588 | 1557 day(s) ago | |
| 2.0.4 | 555 | 1561 day(s) ago | |
| 2.0.3 | 574 | 1568 day(s) ago | |
| 2.0.3-beta1 | 462 | 1582 day(s) ago | |
| 2.0.2 | 4,717 | 1605 day(s) ago | |
| 2.0.1 | 663 | 1611 day(s) ago | |
| 2.0.0 | 555 | 1612 day(s) ago | |
| 2.0.0-beta4 | 889 | 1638 day(s) ago | |
| 2.0.0-beta3 | 906 | 1681 day(s) ago | |
| 2.0.0-beta2 | 463 | 1682 day(s) ago | |
| 2.0.0-beta1 | 550 | 1688 day(s) ago | |
| 1.6.1 | 4,726 | 1234 day(s) ago | |
| 1.6.0 | 611 | 1239 day(s) ago | |
| 1.5.1 | 14,195 | 1612 day(s) ago | |
| 1.5.0 | 520 | 1612 day(s) ago | |
| 1.5.0-beta1 | 450 | 1638 day(s) ago | |
| 1.4.2 | 13,159 | 1647 day(s) ago | |
| 1.4.1 | 2,523 | 1682 day(s) ago | |
| 1.4.0 | 572 | 1695 day(s) ago | |
| 1.3.3 | 7,471 | 1711 day(s) ago | |
| 1.3.2 | 957 | 1724 day(s) ago | |
| 1.3.1 | 1,012 | 1735 day(s) ago | |
| 1.3.0 | 7,641 | 1756 day(s) ago | |
| 1.2.5 | 1,680 | 1793 day(s) ago | |
| 1.2.4 | 1,220 | 1795 day(s) ago | |
| 1.2.3 | 3,770 | 1828 day(s) ago | |
| 1.2.2 | 2,836 | 1849 day(s) ago | |
| 1.2.1 | 1,196 | 1857 day(s) ago | |
| 1.2.0 | 2,482 | 1911 day(s) ago | |
| 1.1.4 | 1,976 | 1927 day(s) ago | |
| 1.1.3 | 757 | 1933 day(s) ago | |
| 1.1.2 | 3,917 | 1953 day(s) ago | |
| 1.1.1 | 6,309 | 1997 day(s) ago | |
| 1.1.0 | 11,574 | 2054 day(s) ago | |
| 1.0.6 | 1,071 | 2088 day(s) ago | |
| 1.0.5 | 726 | 2103 day(s) ago | |
| 1.0.4 | 2,122 | 2124 day(s) ago | |
| 1.0.3 | 1,367 | 2159 day(s) ago | |
| 1.0.2 | 1,752 | 2171 day(s) ago | |
| 1.0.1 | 604 | 2171 day(s) ago | |
| 0.7.0 | 36,653 | 2058 day(s) ago | |
| 0.6.1 | 601 | 2058 day(s) ago | |
| 0.6.0 | 710 | 2058 day(s) ago |
**Phobos 2.x Release**
**New Feature: Akka.Streams Trace Continuity**
Phobos 2.12.0 adds automatic trace-context propagation through Akka.Streams graphs. With Akka.NET 1.5.66+, which ships the framework-owned `"Akka.Streams"` `ActivitySource`, every element flowing through a stream stage carries its parent trace context forward — connecting your actor message handler, the stream graph stages, and any user spans created inside lambdas (e.g. `SqlClient`, `HttpClient` instrumentation) into one unbroken distributed trace.
The resulting trace shape looks like this:
```
[actor] akka.msg.recv RecordOrder
[stream] akka.stream.ingress QueueSource
[stream] akka.stream.stage SelectAsync
[user] db.INSERT (SqlClient / HttpClient / etc.)
```
**Akka.Streams tracing is on by default.** No code changes are required if you already call `AddPhobosInstrumentation()` — it registers the `"Akka.Streams"` `ActivitySource` automatically:
```csharp
services.AddOpenTelemetry()
.WithTracing(tracing => tracing
.AddPhobosInstrumentation() // traceAkkaStreams: true by default
.AddOtlpExporter());
```
To opt out of stream-stage spans:
```csharp
services.AddOpenTelemetry()
.WithTracing(tracing => tracing
.AddPhobosInstrumentation(traceAkkaStreams: false)
.AddOtlpExporter());
```
For details on the underlying Akka.NET `"Akka.Streams"` `ActivitySource`, see: [Akka.Streams OpenTelemetry Tracing](https://getakka.net/articles/streams/stream-tracing.html) in the Akka.NET documentation. See [#1506](https://github.com/petabridge/phobos/pull/1506).
**Bug Fixes**
- Fixed `ReceiveAsync`/`CommandAsync` message-receive spans closing prematurely before the async handler completed. The `akka.msg.recv` span now stays open for the full duration of the async handler, accurately capturing duration and faults across `await` points. Also un-skips the long-standing `AsyncAwaitRequestResponseWithFiltering` trace-continuity test that was suppressed since Phobos 1.3.0. See [#1528](https://github.com/petabridge/phobos/pull/1528).
**Improvements**
- Upgraded to [Akka.NET v1.5.67](https://github.com/akkadotnet/akka.net/releases/tag/1.5.67) and [Akka.Hosting v1.5.67](https://github.com/akkadotnet/Akka.Hosting/releases/tag/1.5.67) for latest stability and performance improvements.
Info
- last updated 135 day(s) ago
- Project Site
- License Info
Statistics
- 550750 total downloads
- 15098 downloads of current version
- 69.0 KB package size
Owners and Products
Petabridge
Authors
Petabridge
Copyright
Copyright © 2017-2026 Petabridge