etcdctl/ctlv3/command: enable gRPC WARNING logs by default
@@ -128,7 +128,9 @@ func clientConfigFromCmd(cmd *cobra.Command) *clientConfig {
fmt.Fprintf(os.Stderr, "%s=%v\n", flags.FlagToEnv("ETCDCTL", f.Name), f.Value)
})
} else {
- clientv3.SetLogger(grpclog.NewLoggerV2(ioutil.Discard, ioutil.Discard, ioutil.Discard))
+ // Enable logging for WARNING and ERROR since these levels include issues with
+ // connecting to the server, such as TLS misconfiguration.
+ clientv3.SetLogger(grpclog.NewLoggerV2(ioutil.Discard, os.Stderr, os.Stderr))
}
cfg := &clientConfig{}
