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29 lines
1,015 B
Markdown
29 lines
1,015 B
Markdown
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# Debugging
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Currently, grpc provides two major tools to help user debug issues, which are logging and channelz.
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## Logs
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gRPC has put substantial logging instruments on critical paths of gRPC to help users debug issues.
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The [Log Levels](https://github.com/grpc/grpc-go/blob/master/Documentation/log_levels.md) doc describes
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what each log level means in the gRPC context.
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To turn on the logs for debugging, run the code with the following environment variable:
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`GRPC_GO_LOG_VERBOSITY_LEVEL=99 GRPC_GO_LOG_SEVERITY_LEVEL=info`.
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## Channelz
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We also provides a runtime debugging tool, Channelz, to help users with live debugging.
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See the channelz blog post here ([link](https://grpc.io/blog/a_short_introduction_to_channelz)) for
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details about how to use channelz service to debug live program.
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## Try it
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The example is able to showcase how logging and channelz can help with debugging. See the channelz
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blog post linked above for full explanation.
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```
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go run server/main.go
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```
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```
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go run client/main.go
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```
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