* 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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| README.md | ||
README.md
Setup
Setup based on which kind of probes are you going to use. If you don't understand, please read Concepts and Designs first.
Important: Please choose the timezone on UI, make it matches the timezone of your OAP backend servers.
Download official releases
- Backend, UI and Java agent are Apache official release, you could find them at Apache SkyWalking DOWNLOAD page.
Language agents in Service
- Java agent. Introduce how to install java agent to your service, without change any codes.
The following agents and SDKs are compatible with the SkyWalking's formats and protocols, but maintained by the 3rd-party. You could go to their project repositories to find out the releases and how to use them.
- SkyAPM .NET Core agent. See .NET Core agent project document for more details.
- SkyAPM Node.js agent. See Node.js server side agent project document for more details.
- SkyAPM PHP SDK. See PHP agent project document for more details.
- SkyAPM GO2Sky. See GO2Sky project document for more details.
Service Mesh
- Istio
- SkyWalking on Istio. Introduce how to use Istio Mixer bypass Adapter to work with SkyWalking.
- Envoy
- Use ALS(access log service) to observe service mesh, without Mixer. Follow document to open it.
Proxy
- Envoy Proxy
- Sending metrics to Skywalking from Envoy. How to send metrics from Envoy to SkyWalking using Metrics service.
Setup backend
Follow backend and UI setup document to understand and config the backend for different scenarios, and open advanced features.
Changes log
Backend, UI and Java agent changes are available here.