**SkyWalking**: an APM(application performance monitor) system, especially designed for
microservices, cloud native and container-based (Docker, Kubernetes, Mesos) architectures.
[](https://github.com/apache/skywalking)
[](https://twitter.com/AsfSkyWalking)
[](http://skywalking.apache.org/downloads/)
[](https://github.com/apache/skywalking/actions?query=branch%3Amaster+event%3Apush+workflow%3A%22CI+AND+IT%22)
[](https://github.com/apache/skywalking/actions?query=branch%3Amaster+event%3Apush+workflow%3AE2E)
[](https://codecov.io/gh/apache/skywalking/branch/master)
# Abstract
**SkyWalking** is an open source APM system, including monitoring, tracing, diagnosing capabilities for distributed system
in Cloud Native architecture.
The core features are following.
- Service, service instance, endpoint metrics analysis
- Root cause analysis. Profile the code on the runtime. Read [Apache SkyWalking: Use Profiling to Fix the Blind Spot of Distributed Tracing](https://thenewstack.io/apache-skywalking-use-profiling-to-fix-the-blind-spot-of-distributed-tracing/).
- Service topology map analysis
- Service, service instance and endpoint dependency analysis
- Slow services and endpoints detected
- Performance optimization
- Distributed tracing and context propagation
- Database access metrics. Detect slow database access statements(including SQL statements).
- Alarm
- Browser performance monitoring
SkyWalking supports to collect telemetry (traces and metrics) data from multiple sources
and multiple formats,
including
1. Java, .NET Core, NodeJS, PHP, and Python auto-instrument agents.
1. Go agent.
1. LUA agent especially for Nginx, OpenResty.
1. Service Mesh Observability. Support Mixer telemetry. Recommend to use Envoy Access Log Service (ALS) for better performance, first introduced at [KubeCon 2019](https://www.youtube.com/watch?v=tERm39ju9ew).
1. Metrics system, including Prometheus, Spring Sleuth(Micrometer).
1. Zipkin v1/v2 and Jaeger gRPC format with limited topology and metrics analysis.(Experimental).
SkyWalking OAP is using the STAM(Streaming Topology Analysis Method) to analysis topology in the tracing based agent scenario
for better performance. Read [the paper of STAM](https://wu-sheng.github.io/STAM/) for more details.
# Document
Version Series | Version |
----------- | ---------- |
8.x| [8.x dev](docs/README.md)|
| | [8.1.0](https://github.com/apache/skywalking/blob/v8.1.0/docs/README.md) |
| | [8.0.1](https://github.com/apache/skywalking/blob/v8.0.1/docs/README.md) |
| | [8.0.0](https://github.com/apache/skywalking/blob/v8.0.0/docs/README.md) |
7.x | [7.0](https://github.com/apache/skywalking/blob/v7.0.0/docs/README.md) |
6.x | [6.6](https://github.com/apache/skywalking/blob/v6.6.0/docs/README.md) |
| | [6.5](https://github.com/apache/skywalking/blob/v6.5.0/docs/README.md) |
NOTICE, SkyWalking 8.0+ uses [v3 protocols](docs/en/protocols/README.md). They are incompatible with previous releases.
# Downloads
Please head to the [releases page](http://skywalking.apache.org/downloads/) to download a release of Apache SkyWalking.
# Code of conduct
This project adheres to the Contributor Covenant [code of conduct](CODE_OF_CONDUCT.md). By participating, you are expected to uphold this code.
Please follow the [REPORTING GUIDELINES](CODE_OF_CONDUCT.md#reporting-guidelines) to report unacceptable behavior.
# Live Demo
Host in Beijing. Go to [demo](http://122.112.182.72:8080).
**Video on youtube.com**
[](http://www.youtube.com/watch?v=mfKaToAKl7k)
# Screenshot
| Dashboard | |
|
|
| Topology Map | Trace |
|
|
The [PoweredBy](docs/powered-by.md) page includes more users of the project.
Users are encouraged to add themselves to there.
# Landscapes
SkyWalking enriches the CNCF CLOUD NATIVE Landscape.
Our project enriches the OpenAPM Landscape!