spark,le,ling,和hadoop的區別,sfly歌詞,sql,rdd,led

Apache Spark 是專為大規模數據處理而設計的快速通用的計算引擎。Spark是UC Berkeley AMP lab (加州大學伯克利分校的AMP實驗室)所開源的類Hadoop MapReduce的通用并行框架,Spark,擁有Hadoop MapReduce所具有的優點;但不同于MapReduce的是——Job中間輸出結果可以保存在內存中,從而不再需要讀寫HDFS,因此Spark能更好地適用于數據挖掘與機器學習等需要迭代的MapReduce的算法。Spark 是一種與 Hadoop 相似的開源集spark

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3d定四个跨度好方法