Add timestamp info to metric in cache
Add timestamp info to metric in cache

Thib17/biggraphite,Thib17/biggraphite,criteo/biggraphite,iksaif/biggraphite,iksaif/biggraphite,dpanth3r/biggraphite,criteo/biggraphite,iksaif/biggraphite,Thib17/biggraphite,Thib17/biggraphite,criteo/biggraphite,criteo/biggraphite,iksaif/biggraphite