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apache-spark - Apache Spark - 将 jdbc 连接对象传递给执行程序

我在 spark 驱动程序中创建一个 jdbc 对象，并在执行程序中使用它来访问数据库。所以我担心的是相同的连接对象还是执行程序会获得连接对象的副本，因此每个分区会有单独的连接？


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