lysu

the question seems to be caused by https://github.com/grpc/grpc-go/blob/master/rpc_util.go#L744-L745 ``` bytesRead, err := buf.ReadFrom(io.LimitReader(dcReader, int64(maxReceiveMessageSize)+1)) ``` will make `LimitReader.N` be negative value and return nothing but I'm not sure how to...

and also need some method to destroy whole client..

@anaktas yes...GC will recycle memory and some resource but it's better to close resource by ourself... for this one, pooled network fd will be added to `runtime.SetFinalizer`, and close them...

+1 to add trace level