Video: R Hadoop yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hadoop yog qhov cuam tshuam Java-raws li programmingframework uas txhawb nqa kev ua cov ntaub ntawv loj hauv cov khoom siv suav nrog, thaum R yog ib lub programminglanguage thiab software ib puag ncig rau statistical computing andgraphics.
Ntxiv mus, kuv yuav tsum kawm R lossis Python?
R feem ntau yog siv rau kev txheeb xyuas txheeb cais thaum Python muab txoj hauv kev ntau dua rau cov ntaub ntawv tshawb fawb. R thiab Python yog lub xeev ntawm kev kos duab nyob rau hauv cov nqe lus ntawm programming lus taw qhia rau cov ntaub ntawv science. Kev kawm ob leeg ntawm lawv yog, ntawm chav kawm, qhov kev daws teeb meem zoo tshaj plaws. Python yog ageneral-purpose lus nrog ib tug nyeem tau syntax.
Tsis tas li ntawd, lub txim txawv ntawm Hadoop li cas? Hadoop yog ib tug siab latency xam lub moj khaum, uas tsis muaj ib tug sib tham sib hom whereas Teeb yog alow latency xam thiab tuaj yeem ua cov ntaub ntawv sib tham sib. Nrog Hadoop MapReduce, tus tsim tawm tsuas tuaj yeem ua cov ntaub ntawv hauv batchmode nkaus xwb Teeb tuaj yeem ua cov ntaub ntawv ntawm lub sijhawm Teeb Tshaj tawm.
Ua kom pom qhov no, Rhadoop yog dab tsi?
Rhadoop yog ib phau ntawm 5 pob khoom sib txawv uas tso cai rau cov neeg siv Hadoop los tswj thiab txheeb xyuas cov ntaub ntawv siv R programming lus. rhdfs –rhdfs pob muab R programmers nrog kev sib txuas rau Hadoop faib cov ntaub ntawv uas lawv nyeem, sau lossis hloov kho cov ntaub ntawv khaws cia hauv HadoopHDFS.
Hadoop faib txhais li cas?
Cov Hadoop Distributed File System (HDFS) yog thawj cov ntaub ntawv khaws cia system siv los ntawm Hadoop daim ntawv thov. Nws ntiav lub NameNode thiab DataNode architecture siv a faib cov ntaub ntawv kaw lus uas muab kev ua tau zoo nkag mus rau cov ntaub ntawv thoob plaws qhov loj heev Hadoop pawg.
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