Work-around a race on mc_cache_t destruction. Not pretty, but documented and it works. ;-)
Work-around a race on mc_cache_t destruction. Not pretty, but documented and it works. ;-)

Closes #365

spblightadv/rethinkdb,yaolinz/rethinkdb,sebadiaz/rethinkdb,yaolinz/rethinkdb,scripni/rethinkdb,marshall007/rethinkdb,4talesa/rethinkdb,KSanthanam/rethinkdb,dparnell/rethinkdb,Qinusty/rethinkdb,captainpete/rethinkdb,wkennington/rethinkdb,JackieXie168/rethinkdb,JackieXie168/rethinkdb,dparnell/rethinkdb,wujf/rethinkdb,gavioto/rethinkdb,Qinusty/rethinkdb,elkingtonmcb/rethinkdb,nviennot/rethinkdb,bpradipt/rethinkdb,catroot/rethinkdb,losywee/rethinkdb,captainpete/rethinkdb,urandu/rethinkdb,spblightadv/rethinkdb,AntouanK/rethinkdb,bpradipt/rethinkdb,KSanthanam/rethinkdb,sebadiaz/rethinkdb,yaolinz/rethinkdb,urandu/rethinkdb,lenstr/rethinkdb,greyhwndz/rethinkdb,gavioto/rethinkdb,niieani/rethinkdb,rrampage/rethinkdb,gdi2290/rethinkdb,matthaywardwebdesign/rethinkdb,pap/rethinkdb,grandquista/rethinkdb,KSanthanam/rethinkdb,RubenKelevra/rethinkdb,yaolinz/rethinkdb,niieani/rethinkdb,bpradipt/rethinkdb,spblightadv/rethinkdb,lenstr/rethinkdb,sbusso/rethinkdb,scripni/rethinkdb,pap/rethinkdb,jesseditson/rethinkdb,victorbriz/rethinkdb,dparnell/rethinkdb,urandu/rethinkdb,eliangidoni/rethinkdb,AntouanK/rethinkdb,mbroadst/rethinkdb,grandquista/rethinkdb,sebadiaz/rethinkdb,jesseditson/rethinkdb,rrampage/rethinkdb,wojons/rethinkdb,yaolinz/rethinkdb,mquandalle/rethinkdb,niieani/rethinkdb,yakovenkodenis/rethinkdb,wujf/rethinkdb,spblightadv/rethinkdb,mcanthony/rethinkdb,jfriedly/rethinkdb,rrampage/rethinkdb,RubenKelevra/rethinkdb,bpradipt/rethinkdb,captainpete/rethinkdb,grandquista/rethinkdb,alash3al/rethinkdb,greyhwndz/rethinkdb,eliangidoni/rethinkdb,mquandalle/rethinkdb,lenstr/rethinkdb,eliangidoni/rethinkdb,mquandalle/rethinkdb,RubenKelevra/rethinkdb,greyhwndz/rethinkdb,sbusso/rethinkdb,greyhwndz/rethinkdb,catroot/rethinkdb,catroot/rethinkdb,rrampage/rethinkdb,jmptrader/rethinkdb,tempbottle/rethinkdb,yakovenkodenis/rethinkdb,RubenKelevra/rethinkdb,ayumilong/rethinkdb,wojons/rethinkdb,4talesa/rethinkdb,KSanthanam/rethinkdb,AntouanK/rethinkdb,yakovenkodenis/rethinkdb,rrampage/rethinkdb,losywee/rethinkdb,tempbottle/rethinkdb,tempbottle/rethinkdb,bchavez/rethinkdb,robertjpayne/rethinkdb,urandu/rethinkdb,nviennot/rethinkdb,eliangidoni/rethinkdb,marshall007/rethinkdb,grandquista/rethinkdb,nviennot/rethinkdb,jfriedly/rethinkdb,elkingtonmcb/rethinkdb,jesseditson/rethinkdb,bchavez/rethinkdb,matthaywardwebdesign/rethinkdb,marshall007/rethinkdb,bchavez/rethinkdb,captainpete/rethinkdb,jmptrader/rethinkdb,marshall007/rethinkdb,mquandalle/rethinkdb,gavioto/rethinkdb,JackieXie168/rethinkdb,AntouanK/rethinkdb,mcanthony/rethinkdb,mcanthony/rethinkdb,jesseditson/rethinkdb,yakovenkodenis/rethinkdb,losywee/rethinkdb,jmptrader/rethinkdb,victorbriz/rethinkdb,niieani/rethinkdb,mcanthony/rethinkdb,AtnNn/rethinkdb,yaolinz/rethinkdb,Qinusty/rethinkdb,catroot/rethinkdb,robertjpayne/rethinkdb,mbroadst/rethinkdb,sontek/rethinkdb,wkennington/rethinkdb,nviennot/rethinkdb,bchavez/rethinkdb,losywee/rethinkdb,elkingtonmcb/rethinkdb,ajose01/rethinkdb,wojons/rethinkdb,sontek/rethinkdb,catroot/rethinkdb,JackieXie168/rethinkdb,mbroadst/rethinkdb,wojons/rethinkdb,wkennington/rethinkdb,wujf/rethinkdb,4talesa/rethinkdb,losywee/rethinkdb,Qinusty/rethinkdb,AtnNn/rethinkdb,yakovenkodenis/rethinkdb,captainpete/rethinkdb,wojons/rethinkdb,jmptrader/rethinkdb,marshall007/rethinkdb,jesseditson/rethinkdb,mbroadst/rethinkdb,AntouanK/rethinkdb,niieani/rethinkdb,alash3al/rethinkdb,sebadiaz/rethinkdb,wkennington/rethinkdb,bpradipt/rethinkdb,captainpete/rethinkdb,matthaywardwebdesign/rethinkdb,mquandalle/rethinkdb,matthaywardwebdesign/rethinkdb,pap/rethinkdb,wujf/rethinkdb,ayumilong/rethinkdb,Qinusty/rethinkdb,spblightadv/rethinkdb,urandu/rethinkdb,greyhwndz/rethinkdb,dparnell/rethinkdb,catroot/rethinkdb,bchavez/rethinkdb,lenstr/rethinkdb,4talesa/rethinkdb,nviennot/rethinkdb,wkennington/rethinkdb,gdi2290/rethinkdb,RubenKelevra/rethinkdb,eliangidoni/rethinkdb,Wilbeibi/rethinkdb,KSanthanam/rethinkdb,victorbriz/rethinkdb,wujf/rethinkdb,AtnNn/rethinkdb,mbroadst/rethinkdb,JackieXie168/rethinkdb,ajose01/rethinkdb,robertjpayne/rethinkdb,rrampage/rethinkdb,urandu/rethinkdb,marshall007/rethinkdb,sbusso/rethinkdb,alash3al/rethinkdb,bpradipt/rethinkdb,victorbriz/rethinkdb,sebadiaz/rethinkdb,gavioto/rethinkdb,KSanthanam/rethinkdb,Wilbeibi/rethinkdb,mquandalle/rethinkdb,jfriedly/rethinkdb,eliangidoni/rethinkdb,lenstr/rethinkdb,jfriedly/rethinkdb,wojons/rethinkdb,grandquista/rethinkdb,AtnNn/rethinkdb,robertjpayne/rethinkdb,AtnNn/rethinkdb,AtnNn/rethinkdb,pap/rethinkdb,bchavez/rethinkdb,robertjpayne/rethinkdb,yakovenkodenis/rethinkdb,wkennington/rethinkdb,scripni/rethinkdb,robertjpayne/rethinkdb,alash3al/rethinkdb,dparnell/rethinkdb,4talesa/rethinkdb,grandquista/rethinkdb,nviennot/rethinkdb,KSanthanam/rethinkdb,ayumilong/rethinkdb,yaolinz/rethinkdb,niieani/rethinkdb,matthaywardwebdesign/rethinkdb,AtnNn/rethinkdb,jmptrader/rethinkdb,pap/rethinkdb,lenstr/rethinkdb,elkingtonmcb/rethinkdb,ayumilong/rethinkdb,RubenKelevra/rethinkdb,bpradipt/rethinkdb,matthaywardwebdesign/rethinkdb,pap/rethinkdb,ajose01/rethinkdb,victorbriz/rethinkdb,captainpete/rethinkdb,Wilbeibi/rethinkdb,gavioto/rethinkdb,ayumilong/rethinkdb,mquandalle/rethinkdb,urandu/rethinkdb,scripni/rethinkdb,elkingtonmcb/rethinkdb,robertjpayne/rethinkdb,ajose01/rethinkdb,bchavez/rethinkdb,Qinusty/rethinkdb,sebadiaz/rethinkdb,victorbriz/rethinkdb,mbroadst/rethinkdb,catroot/rethinkdb,sbusso/rethinkdb,eliangidoni/rethinkdb,mbroadst/rethinkdb,mquandalle/rethinkdb,gavioto/rethinkdb,alash3al/rethinkdb,jmptrader/rethinkdb,robertjpayne/rethinkdb,yakovenkodenis/rethinkdb,AntouanK/rethinkdb,JackieXie168/rethinkdb,ajose01/rethinkdb,bpradipt/rethinkdb,elkingtonmcb/rethinkdb,gdi2290/rethinkdb,jfriedly/rethinkdb,AntouanK/rethinkdb,marshall007/rethinkdb,alash3al/rethinkdb,bchavez/rethinkdb,gavioto/rethinkdb,wujf/rethinkdb,jmptrader/rethinkdb,JackieXie168/rethinkdb,scripni/rethinkdb,sontek/rethinkdb,catroot/rethinkdb,nviennot/rethinkdb,sebadiaz/rethinkdb,lenstr/rethinkdb,mbroadst/rethinkdb,sontek/rethinkdb,wojons/rethinkdb,niieani/rethinkdb,ayumilong/rethinkdb,greyhwndz/rethinkdb,gdi2290/rethinkdb,elkingtonmcb/rethinkdb,rrampage/rethinkdb,yakovenkodenis/rethinkdb,grandquista/rethinkdb,sbusso/rethinkdb,jesseditson/rethinkdb,dparnell/rethinkdb,ajose01/rethinkdb,yaolinz/rethinkdb,spblightadv/rethinkdb,tempbottle/rethinkdb,urandu/rethinkdb,Wilbeibi/rethinkdb,mbroadst/rethinkdb,rrampage/rethinkdb,pap/rethinkdb,4talesa/rethinkdb,bpradipt/rethinkdb,KSanthanam/rethinkdb,RubenKelevra/rethinkdb,ayumilong/rethinkdb,ayumilong/rethinkdb,captainpete/rethinkdb,greyhwndz/rethinkdb,4talesa/rethinkdb,sbusso/rethinkdb,4talesa/rethinkdb,elkingtonmcb/rethinkdb,jfriedly/rethinkdb,lenstr/rethinkdb,losywee/rethinkdb,spblightadv/rethinkdb,scripni/rethinkdb,robertjpayne/rethinkdb,nviennot/rethinkdb,jesseditson/rethinkdb,Wilbeibi/rethinkdb,gavioto/rethinkdb,pap/rethinkdb,RubenKelevra/rethinkdb,Wilbeibi/rethinkdb,jesseditson/rethinkdb,niieani/rethinkdb,victorbriz/rethinkdb,gdi2290/rethinkdb,marshall007/rethinkdb,spblightadv/rethinkdb,sbusso/rethinkdb,jfriedly/rethinkdb,AntouanK/rethinkdb,Qinusty/rethinkdb,wujf/rethinkdb,gdi2290/rethinkdb,mcanthony/rethinkdb,bchavez/rethinkdb,AtnNn/rethinkdb,dparnell/rethinkdb,ajose01/rethinkdb,jmptrader/rethinkdb,victorbriz/rethinkdb,grandquista/rethinkdb,mcanthony/rethinkdb,losywee/rethinkdb,JackieXie168/rethinkdb,sontek/rethinkdb,tempbottle/rethinkdb,ajose01/rethinkdb,alash3al/rethinkdb,sontek/rethinkdb,sebadiaz/rethinkdb,eliangidoni/rethinkdb,matthaywardwebdesign/rethinkdb,Qinusty/rethinkdb,tempbottle/rethinkdb,Wilbeibi/rethinkdb,alash3al/rethinkdb,grandquista/rethinkdb,sontek/rethinkdb,wkennington/rethinkdb,dparnell/rethinkdb,Wilbeibi/rethinkdb,wojons/rethinkdb,matthaywardwebdesign/rethinkdb,JackieXie168/rethinkdb,eliangidoni/rethinkdb,sontek/rethinkdb,tempbottle/rethinkdb,mcanthony/rethinkdb,dparnell/rethinkdb,scripni/rethinkdb,mcanthony/rethinkdb,jfriedly/rethinkdb,wkennington/rethinkdb,scripni/rethinkdb,gdi2290/rethinkdb,losywee/rethinkdb,Qinusty/rethinkdb,sbusso/rethinkdb,greyhwndz/rethinkdb,tempbottle/rethinkdb