@@ -14,10 +14,10 @@ When using a thread pool, `TraceSegment` data in a thread cannot be reported and
### Resolution
* When using `Thread Schedule Framework`
* When using `Thread Schedule Framework`:
See SkyWalking Thread Schedule Framework at [SkyWalking Java agent supported list](../setup/service-agent/java-agent/Supported-list.md), such as Spring FrameWork @Async, which can implement tracing without any modification.
These are known and common FAQs. We welcome you to contribute yours.
These are known and frequently asked questions about SkyWalking. We welcome you to contribute here.
## Design
*[Why doesn't SkyWalking involve MQ in the architecture?](why_mq_not_involved.md)
*[Why doesn't SkyWalking involve MQ in its architecture?](why_mq_not_involved.md)
## Compiling
*[Protoc plugin fails in maven build](Protoc-Plugin-Fails-When-Build.md)
*[Required items could not be found, when import project into Eclipse](Import-Project-Eclipse-RequireItems-Exception.md)
*[Maven compilation failure with `python2 not found` error](maven-compile-npm-failure.md)
*[Fix compiling on Mac M1 chip](How-to-build-with-mac-m1.md)
*[Required items could not be found when importing project into Eclipse](Import-Project-Eclipse-RequireItems-Exception.md)
*[Maven compilation failure with error such as `python2 not found`](maven-compile-npm-failure.md)
*[Compiling issues on Mac's M1 chip](How-to-build-with-mac-m1.md)
## Runtime
*[8.x+ upgrade](v8-version-upgrade.md)
*[Why metrics indexes(ElasticSearch) in Hour and Day precisions stop update after upgrade to 7.x?](Hour-Day-Metrics-Stopping.md)
*[6.x version upgrade](v6-version-upgrade.md)
*[Why only traces in UI?](Why-have-traces-no-others.md)
*[The trace doesn't continue in kafka consumer side](kafka-plugin.md)
*[Version 8.x+ upgrade](v8-version-upgrade.md)
*[Why do metrics indexes with Hour and Day precisions stop updating after upgrade to 7.x?](Hour-Day-Metrics-Stopping.md)
*[Version 6.x upgrade](v6-version-upgrade.md)
*[Why are there only traces in UI?](Why-have-traces-no-others.md)
*[Tracing doesn't work on the Kafka consumer end](kafka-plugin.md)
*[Agent or collector version upgrade, 3.x -> 5.0.0-alpha](v3-version-upgrade.md)
*[EnhanceRequireObjectCache class cast exception](EnhanceRequireObjectCache-Cast-Exception.md)
*[ElasticSearch server performance FAQ, including ERROR CODE:429](ES-Server-FAQ.md)
*[IllegalStateException when install Java agent on WebSphere 7](install_agent_on_websphere.md)
*[ElasticSearch server performance issues, including ERROR CODE:429](ES-Server-FAQ.md)
*[IllegalStateException when installing Java agent on WebSphere 7](install_agent_on_websphere.md)
*["FORBIDDEN/12/index read-only / allow delete (api)" appears in the log](https://discuss.elastic.co/t/forbidden-12-index-read-only-allow-delete-api/110282)
*[No data shown and backend replies with "Variable 'serviceId' has coerced Null value for NonNull type 'ID!'"](time-and-timezone.md)
*[**Unexpected endpoint register** warning after 6.6.0](Unexpected-endpoint-register.md)
*[Use the profile exporter tool if the profile analysis is not right](../guides/backend-profile-export.md)
*[Compatible with other javaagent bytecode processing](Compatible-with-other-javaagent-bytecode-processing.md)
*[**Java agent memory leak** when enhance `Worker thread` at use Thread Pool](Memory-leak-enhance-Worker-thread.md)
*[Compatibility with other javaagent bytecode processes](Compatible-with-other-javaagent-bytecode-processing.md)
*[**Java agent memory leak** when enhancing `Worker thread` at Thread Pool](Memory-leak-enhance-Worker-thread.md)
