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  • PrestoAndHiveTrainingSession . . . . 8 matches
         # Hive & Presto Architecture
         - DFS(HDFS, S3) > ResourceManager(YARN) > Processing(MapReduce,Tez) > SQL Engine(Hive)
         basedOnDisk: Hive(MR, Tez)
         Hive on Tez(or MR) : best for batch processing
         Presto: join 순서를 변경하지 않음. 왼쪽은 결과셋이 큰테이블, 오른쪽은 작은 테이블을 쓰는게 빠르다(Hive는 무관)
         Hive: group by 기준컬럼은 distinct(=분포도) 가 높은 컬럼 순으로 작성(ex: group by order_dt, gender)
         Hive: order by a, b --> distribute by a sort by a, b (a를 이용해서 reducer 생성)
         대량 order by : Hive에서 중간 테이블 만들고 Presto에서 이용
  • Hive . . . . 1 match
         [Presto and Hive Training Session]
  • Presto . . . . 1 match
         [Presto and Hive Training Session]
  • ejb . . . . 1 match
          *[HiveMind] : 또 하나의 [IoC]컨테이너.
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