Imports
- github.com/juju/errors
- github.com/opentracing/opentracing-go
- github.com/pingcap/kvproto/pkg/metapb
- github.com/pingcap/kvproto/pkg/pdpb
- github.com/prometheus/client_golang/prometheus
- github.com/sirupsen/logrus
- golang.org/x/net/context
- google.golang.org/grpc
- google.golang.org/grpc/credentials