Add some logging.
Add some logging.

phacops/pachyderm,alexdebrie/pachyderm,kunthar/pachyderm,ShengjieLuo/pachyderm,phacops/pachyderm,kunthar/pachyderm,henrylee2cn/pachyderm,henrylee2cn/pachyderm,ShengjieLuo/pachyderm,sambooo/pachyderm,klucar/pachyderm,ShengjieLuo/pachyderm,klucar/pachyderm,sambooo/pachyderm,alexdebrie/pachyderm,sambooo/pachyderm,klucar/pachyderm,alexdebrie/pachyderm