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 | |
|---|---|---|---|
| 2.12.0 Current | 7,423 | 73 day(s) ago | |
| 2.11.3 | 2,268 | 94 day(s) ago | |
| 2.11.2 | 286 | 100 day(s) ago | |
| 2.11.1 | 196 | 102 day(s) ago | |
| 2.11.0 | 1,750 | 129 day(s) ago | |
| 2.10.5 | 11,497 | 154 day(s) ago | |
| 2.10.4 | 5,984 | 204 day(s) ago | |
| 2.10.3 | 208 | 204 day(s) ago | |
| 2.10.2 | 25,499 | 274 day(s) ago | |
| 2.10.1 | 2,527 | 291 day(s) ago | |
| 2.10.0 | 1,789 | 310 day(s) ago | |
| 2.9.1 | 675 | 317 day(s) ago | |
| 2.9.0 | 1,402 | 332 day(s) ago | |
| 2.8.5 | 11,486 | 406 day(s) ago | |
| 2.8.4 | 4,396 | 452 day(s) ago | |
| 2.8.3 | 8,365 | 499 day(s) ago | |
| 2.8.2 | 3,267 | 533 day(s) ago | |
| 2.8.1 | 1,089 | 534 day(s) ago | |
| 2.8.0 | 1,985 | 541 day(s) ago | |
| 2.7.0 | 1,249 | 548 day(s) ago | |
| 2.6.2 | 1,657 | 567 day(s) ago | |
| 2.6.1 | 597 | 574 day(s) ago | |
| 2.6.0 | 1,621 | 582 day(s) ago | |
| 2.5.4 | 102,377 | 743 day(s) ago | |
| 2.5.3 | 1,195 | 753 day(s) ago | |
| 2.5.2 | 1,051 | 759 day(s) ago | |
| 2.5.1 | 18,629 | 842 day(s) ago | |
| 2.5.0 | 20,388 | 878 day(s) ago | |
| 2.4.5 | 2,968 | 912 day(s) ago | |
| 2.4.4 | 1,047 | 947 day(s) ago | |
| 2.4.3 | 9,742 | 954 day(s) ago | |
| 2.4.2 | 10,940 | 1025 day(s) ago | |
| 2.4.1 | 12,010 | 1085 day(s) ago | |
| 2.4.0 | 814 | 1088 day(s) ago | |
| 2.3.1 | 8,658 | 1144 day(s) ago | |
| 2.3.0 | 12,957 | 1169 day(s) ago | |
| 2.2.1 | 1,268 | 1172 day(s) ago | |
| 2.2.0 | 2,288 | 1226 day(s) ago | |
| 2.2.0-beta2 | 392 | 1227 day(s) ago | |
| 2.1.1 | 636 | 1002 day(s) ago | |
| 2.1.0 | 2,233 | 1271 day(s) ago | |
| 2.1.0-beta2 | 646 | 1359 day(s) ago | |
| 2.1.0-beta1 | 532 | 1433 day(s) ago | |
| 2.0.6 | 66,003 | 1491 day(s) ago | |
| 2.0.5 | 528 | 1495 day(s) ago | |
| 2.0.4 | 495 | 1499 day(s) ago | |
| 2.0.3 | 511 | 1506 day(s) ago | |
| 2.0.3-beta1 | 402 | 1520 day(s) ago | |
| 2.0.2 | 4,657 | 1543 day(s) ago | |
| 2.0.1 | 603 | 1549 day(s) ago | |
| 2.0.0 | 493 | 1550 day(s) ago | |
| 2.0.0-beta4 | 829 | 1576 day(s) ago | |
| 2.0.0-beta3 | 846 | 1620 day(s) ago | |
| 2.0.0-beta2 | 403 | 1620 day(s) ago | |
| 2.0.0-beta1 | 490 | 1626 day(s) ago | |
| 1.6.1 | 4,666 | 1172 day(s) ago | |
| 1.6.0 | 551 | 1177 day(s) ago | |
| 1.5.1 | 14,133 | 1550 day(s) ago | |
| 1.5.0 | 460 | 1550 day(s) ago | |
| 1.5.0-beta1 | 390 | 1576 day(s) ago | |
| 1.4.2 | 13,071 | 1585 day(s) ago | |
| 1.4.1 | 2,463 | 1620 day(s) ago | |
| 1.4.0 | 511 | 1633 day(s) ago | |
| 1.3.3 | 7,411 | 1649 day(s) ago | |
| 1.3.2 | 896 | 1662 day(s) ago | |
| 1.3.1 | 952 | 1674 day(s) ago | |
| 1.3.0 | 7,580 | 1695 day(s) ago | |
| 1.2.5 | 1,620 | 1732 day(s) ago | |
| 1.2.4 | 1,158 | 1733 day(s) ago | |
| 1.2.3 | 3,708 | 1766 day(s) ago | |
| 1.2.2 | 2,775 | 1788 day(s) ago | |
| 1.2.1 | 1,136 | 1796 day(s) ago | |
| 1.2.0 | 2,422 | 1849 day(s) ago | |
| 1.1.4 | 1,915 | 1865 day(s) ago | |
| 1.1.3 | 697 | 1871 day(s) ago | |
| 1.1.2 | 3,857 | 1891 day(s) ago | |
| 1.1.1 | 6,249 | 1935 day(s) ago | |
| 1.1.0 | 11,512 | 1992 day(s) ago | |
| 1.0.6 | 1,011 | 2026 day(s) ago | |
| 1.0.5 | 666 | 2041 day(s) ago | |
| 1.0.4 | 2,062 | 2062 day(s) ago | |
| 1.0.3 | 1,307 | 2097 day(s) ago | |
| 1.0.2 | 1,692 | 2109 day(s) ago | |
| 1.0.1 | 544 | 2109 day(s) ago | |
| 0.7.0 | 36,592 | 1996 day(s) ago | |
| 0.6.1 | 541 | 1996 day(s) ago | |
| 0.6.0 | 649 | 1996 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 73 day(s) ago
- Project Site
- License Info
Statistics
- 519444 total downloads
- 7423 downloads of current version
- 69.0 KB package size
Owners and Products
Petabridge
Authors
Petabridge
Copyright
Copyright © 2017-2026 Petabridge