bug fix:L1 cache not clear if the key deleted
bug fix:L1 cache not clear if the key deleted

yinqiwen/ardb,spitfire2/ardb,wfxiang08/ardb,placrosse/ardb,tempbottle/ardb,bssrdf/ardb,cloudrain21/ardb,lsm/ardb,wfxiang08/ardb,spitfire2/ardb,placrosse/ardb,bssrdf/ardb,yinqiwen/ardb,lsm/ardb,tempbottle/ardb,cloudrain21/ardb