基于電商物流的數(shù)據(jù)倉(cāng)庫(kù)的構(gòu)建研究
【文章頁(yè)數(shù)】:87 頁(yè)
【學(xué)位級(jí)別】:碩士
【部分圖文】:
圖1-1?HDFS的運(yùn)行底層結(jié)構(gòu)和運(yùn)行流程圖??Figure?1-1?Underlying?structure?and?mnning?flow?of?the?HDFS??
數(shù)據(jù)信息,datanode主要存??儲(chǔ)的是用戶(hù)所要存儲(chǔ)的數(shù)據(jù)???1?鏖十》^???—?checkpoint機(jī)??■?-?--,namenode?——-——??secondary????溝求查詢(xún)數(shù)據(jù)???h??namenode??客戶(hù)端??載均衡?心跳機(jī)^副本管理??a?,???....
圖2-2?Yarn運(yùn)行時(shí)的底層結(jié)構(gòu)和流程圖??Figure?2-2?Basic?structure?and?flowchart?of?Yam?running??
^duler??客戶(hù)端?丨任-夸調(diào)釀??@行?\?從任務(wù)隊(duì)列中領(lǐng)取任務(wù)??MRAppMasj。荆蓿椋妫夼炞袆(wù)?\丨從任務(wù)P人列??倩況?\?1中麵仔努?? ̄丨?-丨 ̄??MRAppMaster????container?containei??varnchilc:?'.?r-- ̄....
圖2-3?Hive的底層架構(gòu)圖??Figure?2-3?Underlying?architecture?of?Hive??
?2數(shù)據(jù)倉(cāng)庫(kù)的相關(guān)技術(shù)???CLI?Thrift?Server??|?JDBC?|?1?ODBC?1??driver??meta?a?l?a?.凋¥??Store?叫?physical?query?mr或??parser?plan?optimizer?者??解析器?編譯器?優(yōu)化器....
圖2-4?flume的運(yùn)行流程圖??-
?2數(shù)據(jù)倉(cāng)庫(kù)的相關(guān)技術(shù)???CLI?Thrift?Server??|?JDBC?|?1?ODBC?1??driver??meta?a?l?a?.凋¥??Store?叫?physical?query?mr或??parser?plan?optimizer?者??解析器?編譯器?優(yōu)化器....
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