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 | 4,854 | 50 day(s) ago | |
| 2.11.3 | 2,189 | 70 day(s) ago | |
| 2.11.2 | 263 | 77 day(s) ago | |
| 2.11.1 | 153 | 78 day(s) ago | |
| 2.11.0 | 1,718 | 106 day(s) ago | |
| 2.10.5 | 9,777 | 131 day(s) ago | |
| 2.10.4 | 5,699 | 181 day(s) ago | |
| 2.10.3 | 184 | 181 day(s) ago | |
| 2.10.2 | 23,922 | 251 day(s) ago | |
| 2.10.1 | 2,504 | 268 day(s) ago | |
| 2.10.0 | 1,734 | 287 day(s) ago | |
| 2.9.1 | 652 | 294 day(s) ago | |
| 2.9.0 | 1,379 | 309 day(s) ago | |
| 2.8.5 | 11,439 | 383 day(s) ago | |
| 2.8.4 | 4,357 | 428 day(s) ago | |
| 2.8.3 | 8,335 | 476 day(s) ago | |
| 2.8.2 | 3,216 | 510 day(s) ago | |
| 2.8.1 | 1,066 | 511 day(s) ago | |
| 2.8.0 | 1,962 | 517 day(s) ago | |
| 2.7.0 | 1,225 | 524 day(s) ago | |
| 2.6.2 | 1,634 | 544 day(s) ago | |
| 2.6.1 | 574 | 551 day(s) ago | |
| 2.6.0 | 1,598 | 559 day(s) ago | |
| 2.5.4 | 100,484 | 720 day(s) ago | |
| 2.5.3 | 1,171 | 730 day(s) ago | |
| 2.5.2 | 1,028 | 736 day(s) ago | |
| 2.5.1 | 18,526 | 819 day(s) ago | |
| 2.5.0 | 19,032 | 855 day(s) ago | |
| 2.4.5 | 2,944 | 889 day(s) ago | |
| 2.4.4 | 1,024 | 923 day(s) ago | |
| 2.4.3 | 9,718 | 930 day(s) ago | |
| 2.4.2 | 10,344 | 1002 day(s) ago | |
| 2.4.1 | 11,987 | 1062 day(s) ago | |
| 2.4.0 | 790 | 1065 day(s) ago | |
| 2.3.1 | 8,635 | 1120 day(s) ago | |
| 2.3.0 | 12,363 | 1146 day(s) ago | |
| 2.2.1 | 1,245 | 1149 day(s) ago | |
| 2.2.0 | 2,265 | 1202 day(s) ago | |
| 2.2.0-beta2 | 368 | 1204 day(s) ago | |
| 2.1.1 | 611 | 979 day(s) ago | |
| 2.1.0 | 2,209 | 1247 day(s) ago | |
| 2.1.0-beta2 | 623 | 1336 day(s) ago | |
| 2.1.0-beta1 | 509 | 1409 day(s) ago | |
| 2.0.6 | 65,975 | 1468 day(s) ago | |
| 2.0.5 | 505 | 1472 day(s) ago | |
| 2.0.4 | 472 | 1476 day(s) ago | |
| 2.0.3 | 488 | 1483 day(s) ago | |
| 2.0.3-beta1 | 379 | 1496 day(s) ago | |
| 2.0.2 | 4,634 | 1520 day(s) ago | |
| 2.0.1 | 580 | 1526 day(s) ago | |
| 2.0.0 | 469 | 1527 day(s) ago | |
| 2.0.0-beta4 | 806 | 1552 day(s) ago | |
| 2.0.0-beta3 | 823 | 1596 day(s) ago | |
| 2.0.0-beta2 | 380 | 1597 day(s) ago | |
| 2.0.0-beta1 | 467 | 1603 day(s) ago | |
| 1.6.1 | 4,643 | 1149 day(s) ago | |
| 1.6.0 | 528 | 1154 day(s) ago | |
| 1.5.1 | 14,110 | 1527 day(s) ago | |
| 1.5.0 | 437 | 1527 day(s) ago | |
| 1.5.0-beta1 | 367 | 1552 day(s) ago | |
| 1.4.2 | 13,036 | 1562 day(s) ago | |
| 1.4.1 | 2,440 | 1597 day(s) ago | |
| 1.4.0 | 488 | 1610 day(s) ago | |
| 1.3.3 | 7,388 | 1626 day(s) ago | |
| 1.3.2 | 873 | 1639 day(s) ago | |
| 1.3.1 | 929 | 1650 day(s) ago | |
| 1.3.0 | 7,557 | 1671 day(s) ago | |
| 1.2.5 | 1,597 | 1708 day(s) ago | |
| 1.2.4 | 1,134 | 1710 day(s) ago | |
| 1.2.3 | 3,684 | 1743 day(s) ago | |
| 1.2.2 | 2,752 | 1764 day(s) ago | |
| 1.2.1 | 1,113 | 1772 day(s) ago | |
| 1.2.0 | 2,399 | 1826 day(s) ago | |
| 1.1.4 | 1,891 | 1842 day(s) ago | |
| 1.1.3 | 674 | 1848 day(s) ago | |
| 1.1.2 | 3,834 | 1868 day(s) ago | |
| 1.1.1 | 6,226 | 1911 day(s) ago | |
| 1.1.0 | 11,488 | 1969 day(s) ago | |
| 1.0.6 | 988 | 2003 day(s) ago | |
| 1.0.5 | 642 | 2018 day(s) ago | |
| 1.0.4 | 2,039 | 2039 day(s) ago | |
| 1.0.3 | 1,284 | 2073 day(s) ago | |
| 1.0.2 | 1,668 | 2086 day(s) ago | |
| 1.0.1 | 521 | 2086 day(s) ago | |
| 0.7.0 | 36,569 | 1973 day(s) ago | |
| 0.6.1 | 518 | 1973 day(s) ago | |
| 0.6.0 | 625 | 1973 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 50 day(s) ago
- Project Site
- License Info
Statistics
- 506730 total downloads
- 4854 downloads of current version
- 69.0 KB package size
Owners and Products
Petabridge
Authors
Petabridge
Copyright
Copyright © 2017-2026 Petabridge