Imports github.com/golang/glog golang.org/x/net/context github.com/youtube/vitess/go/vt/worker/grpcvtworkerclient github.com/youtube/vitess/go/vt/proto/logutil github.com/youtube/vitess/go/vt/worker/vtworkerclient github.com/youtube/vitess/go/vt/logutil Standard library imports flag os syscall os/signal