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PE随机壁纸
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闲言碎语
闲言碎语先前，我总觉得，思念二字太过俗气，从遇见你，我才自知是个俗人，我常常和风谈论你，因为它总是先我一步去见你，有道是，南风知我意。若到了花季，请稍上我的简讯，给你带过去
December 21st, 2022 at 12:48 pmhttps://aws.amazon.com/cn/blogs/china/spark-job-ptimization-practice-on-emr/
September 29th, 2022 at 09:15 pm--driver-memory : driver内存大小--executor-memory : 每个executor的内存--num-executors : 总共申请的executor数目--executor-cores : 每个executor内的核数，即每个executor中的可并行的任务task数--spark.default.parallelism ： join、reduceByKe...
September 29th, 2022 at 09:12 pm
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