2.5 KiB
2.5 KiB
FAQs
These are known and frequently asked questions about SkyWalking. We welcome you to contribute here.
Design
- Why does SkyWalking use RPC(gRPC and RESTful) rather than MQ as transport layer by default?
- Why is Clickhouse or Loki or xxx not supported as a storage option?
Compiling
- Protoc plugin fails in maven build
- Required items could not be found when importing project into Eclipse
- Maven compilation failure with error such as
python2 not found - Compiling issues on Mac's M1 chip
Runtime
- New ElasticSearch storage option explanation in 9.2.0
- Version 9.x+ upgrade
- Elasticsearch exception
type=version_conflict_engine_exceptionsince 8.7.0 - Version 8.x+ upgrade
- Why do metrics indexes with Hour and Day precisions stop updating after upgrade to 7.x?
- Version 6.x upgrade
- Why are there only traces in UI?
- Tracing doesn't work on the Kafka consumer end
- Agent or collector version upgrade, 3.x -> 5.0.0-alpha
- EnhanceRequireObjectCache class cast exception
- ElasticSearch server performance issues, including ERROR CODE:429
- IllegalStateException when installing Java agent on WebSphere 7
- "FORBIDDEN/12/index read-only / allow delete (api)" appears in the log
- No data shown and backend replies with "Variable 'serviceId' has coerced Null value for NonNull type 'ID!'"
- Unexpected endpoint register warning after 6.6.0
- Use the profile exporter tool if the profile analysis is not right
- Compatibility with other javaagent bytecode processes
- Java agent memory leak when enhancing
Worker threadat Thread Pool - Thrift plugin