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Diffstat (limited to 'doc/environment_variables.md')
| -rw-r--r-- | doc/environment_variables.md | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/environment_variables.md b/doc/environment_variables.md index 832762a5f5..460f91d6bd 100644 --- a/doc/environment_variables.md +++ b/doc/environment_variables.md @@ -67,3 +67,11 @@ some configuration as environment variables that can be set. - DEBUG - log all gRPC messages - INFO - log INFO and ERROR message - ERROR - log only errors + +* GRPC_DNS_RESOLVER + Declares which DNS resolver to use. The default is ares if gRPC is built with + c-ares support. Otherwise, the value of this environment variable is ignored. + Available DNS resolver include: + - ares (default) - a DNS resolver based around the c-ares library + - native - a DNS resolver based around getaddrinfo(), creates a new thread to + perform name resolution |