2017年9月20日

=>(scala)

摘要: 1Function<n>[A[,B,...],T] :a function that takes parameters of type A[,B...], and returns a value of type T. 2=>() :A function that returns Unit is al 阅读全文

posted @ 2017-09-20 07:01 satyrs 阅读(121) 评论(0) 推荐(0) 编辑

spark 01

摘要: debug environment http://spark.apache.org/docs/latest/building-spark.html 1spark-shell →spark-submit→(SparkSubmit)spark-class 2open jvm→thread dump→ma 阅读全文

posted @ 2017-09-20 05:03 satyrs 阅读(133) 评论(0) 推荐(0) 编辑

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