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RDD(Resilient Distributed Dateset),弹性分布式数据集。 <!-- ^ Position is not set to relative / absolute here because of Mozilla --> ◆哪里体现RDD的弹性? 1.partition的个数 阅读全文
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来源:http://spark.apache.org/docs/latest/submitting-applications.html 提交程序常用的一些选项 --class: The entry point for your application (e.g. org.apache.spark.e 阅读全文
摘要:
来源:http://spark.apache.org/docs/latest/cluster-overview.html User program built on Spark. Consists of a driver program and executors on the cluster. ( 阅读全文
摘要:
来源:https://dev.mysql.com/doc/refman/5.7/en/keywords.html 标有(R)的为保留关键字。 A ACCESSIBLE (R) ACCOUNT; added in 5.7.6 (nonreserved) ACTION ADD (R) AFTER AGA 阅读全文