e241b33f26
Some checks failed
codecov / upload (push) Failing after 13m59s
CodeQL / Analyze (push) Failing after 1s
Testing / vet-proto (push) Failing after 1s
Testing / tests (arm, latest) (push) Waiting to run
Testing / extras (latest) (push) Failing after 1s
Testing / static checks (latest-1) (push) Failing after 1s
Testing / tests (-race, latest) (push) Failing after 1s
Testing / tests (i386, latest) (push) Failing after 1s
Testing / tests (latest) (push) Failing after 1s
Testing / tests (latest-1) (push) Failing after 1s
Lock Threads / lock (push) Failing after 1s
govulncheck / govulncheck (.) (push) Failing after 1s
govulncheck / govulncheck (./cmd/protoc-gen-go-grpc) (push) Failing after 1s
govulncheck / govulncheck (./gcp/observability) (push) Failing after 1s
govulncheck / govulncheck (./security/advancedtls) (push) Failing after 1s
govulncheck / govulncheck (./stats/opencensus) (push) Failing after 1s
Stale bot / stale (push) Failing after 1s
30 lines
1012 B
Markdown
30 lines
1012 B
Markdown
# Debugging
|
|
|
|
Currently, grpc provides two major tools to help user debug issues, which are logging and channelz.
|
|
|
|
## Logs
|
|
gRPC has put substantial logging instruments on critical paths of gRPC to help users debug issues.
|
|
The [Log Levels](https://github.com/grpc/grpc-go/blob/master/Documentation/log_levels.md) doc describes
|
|
what each log level means in the gRPC context.
|
|
|
|
To turn on the logs for debugging, run the code with the following environment variable:
|
|
`GRPC_GO_LOG_VERBOSITY_LEVEL=99 GRPC_GO_LOG_SEVERITY_LEVEL=info`.
|
|
|
|
## Channelz
|
|
We also provide a runtime debugging tool, Channelz, to help users with live debugging.
|
|
|
|
See the channelz blog post here ([link](https://grpc.io/blog/a-short-introduction-to-channelz/)) for
|
|
details about how to use channelz service to debug live program.
|
|
|
|
## Try it
|
|
The example is able to showcase how logging and channelz can help with debugging. See the channelz
|
|
blog post linked above for full explanation.
|
|
|
|
```
|
|
go run server/main.go
|
|
```
|
|
|
|
```
|
|
go run client/main.go
|
|
```
|