Ans: Cov ntaub ntawv yog hais li Ntawv loj Thaum twg koj tsis tswj nraaj. Tam sim no ib hnub cia no yuav pheej yig thiab ua cheaper yav, uas txhais tau tias nws kuj yog yooj yim rau sau roob ntawm cov ntaub ntawv. Tab sis cov muaj peev xwm ua tau ntaub ntawv qhov ntim ntawm cov ntaub ntawv loj loj thiab sai nraaj muaj tsis scaled nyob mus tib seem. Yam tshuaj yog tsis muaj peev yuav tau analyse thiab muab cov ntaub ntawv nraaj thiab meej lawm. Ntawm no Apache Hadoop los txog rau hauv cov duab los lis cov ntaub NTAWV loj LOJ. Cov ntaub ntawv tsuas zoo, analytics, thiab pheej yig ua,ceev thiab npaum. Hadoop tau noj ntau ntawm koj tej ntaub ntawv loj teeb meem daws tau cov teeb meem. Apache Hadoop yog pheej yig thiab ib tug yog ib qhov Apache qhib los. Tus twg los tau yog xav siv txoj kev no. Hadoop sau rau hauv kho vajtse (i.e. cev txhua hnub xyuas hauv computer), ces koj tsis tas yuav vam-duas database tshwj cov cav tov.
