Use class variables for metrics provider cache
Use class variables for metrics provider cache

mmkassem/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,axilleas/gitlabhq,axilleas/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,stoplightio/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,dreampet/gitlab,dreampet/gitlab,stoplightio/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,jirutka/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,mmkassem/gitlabhq,jirutka/gitlabhq