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* Add Light4J 1.6.x plug-in * Add unit test for Light4J plug-in * Add missing id to server-starter * Remove mentions of version 1.6.x Some local testing showed that the plugin successfully generated traces for a light4j project built with light-codegen v2.x. Therefore, there is no need for a separate plugin for v2.x and no distinction needs to be made with light4j v1.6.x. * Update supported light4j versions * Use ContextSnapshot to maintain trace In a typical Light4j project, the ExceptionHandler#handleRequest is the asynchronous execution point. The flow is ExceptionHandler#handleRequest -> HttpServerExchange#dispatch -> ... -> ExceptionHandler#handleRequest. This means that handleRequest is being intercepted twice and each time a LocalSpan is created. Without handling thread propagation, the trace segment gets split up. By saving a ContextSnapshot into the enhanced object (ExceptionHandler), we can determine if it is necessary to continue the segment. * Update logic for span creation in trace By default, the Light4J plugin now overrides the Undertow plugin's entry span with its own. This new entry span is created just before execution of the ExceptionHandler#handleRequest in the I/O thread. The entry span is generated here because it is considered the starting point of the Light4J handler chain. There is now also the option to enable detailed span creation when tracing requests through Light4J. These local spans mark which middleware and business handlers are involved with handling the HTTP request to a Light4J service. * Update skywalking version * Update light4j version * Fix LightInstrumentation javadoc * Remove import violating checkstyle This import was added from the link reference in the javadoc. The javadoc has now been changed to just reference the method name. * Move light4j agent config property * Sync UI |
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| apm-sniffer | ||
| apm-webapp | ||
| docker | ||
| docs | ||
| licenses | ||
| oap-server | ||
| skywalking-ui@206a514ae7 | ||
| test/e2e | ||
| tools | ||
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| CHANGES.md | ||
| CODE_OF_CONDUCT.md | ||
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README.md
Apache SkyWalking
SkyWalking: an APM(application performance monitor) system, especially designed for microservices, cloud native and container-based (Docker, Kubernetes, Mesos) architectures.
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
- 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
SkyWalking supports to collect telemetry (traces and metrics) data from multiple sources and multiple formats, including
- Java, .NET Core, NodeJS and PHP auto-instrument agents in SkyWalking format
- Manual-instrument Go agent in SkyWalking format.
- Istio telemetry format
- Envoy gRPC Access Log Service (ALS) format in Istio controlled service mesh
- Envoy Metrics Service format.
- Zipkin v1/v2 format.
- Jaeger gRPC format.
Document
Downloads
Please head to the releases page to download a release of Apache SkyWalking.
Code of conduct
This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code. Please follow the REPORTING GUIDELINES to report unacceptable behavior.
Live Demo
Host in Beijing. Go to demo.
Video on youtube.com
Screenshot
| Dashboard | |
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| Topology Map | Trace |
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Compiling project
Follow this document.
Contact Us
- Submit an issue
- Mail list: dev@skywalking.apache.org. Mail to
dev-subscribe@skywalking.apache.org, follow the reply to subscribe the mail list. - Join
#skywalkingchannel at Apache Slack - QQ Group: 392443393(2000/2000, not available), 901167865(available)
Who Uses SkyWalking?
A wide variety of companies and organizations use SkyWalking for research, production and commercial product. Here is the User Wall of SkyWalking.
Users are encouraged to add themselves to the PoweredBy page.
Landscapes
SkyWalking enriches the CNCF CLOUD NATIVE Landscape.
Our project enriches the OpenAPM Landscape!