本文介绍了星火在stdout失去的println()的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有以下的code:
val blueCount = sc.accumulator[Long](0)
val output = input.map { data =>
for (value <- data.getValues()) {
if (record.getEnum() == DataEnum.BLUE) {
blueCount += 1
println("Enum = BLUE : " + value.toString()
}
}
data
}.persist(StorageLevel.MEMORY_ONLY_SER)
output.saveAsTextFile("myOutput")
那么blueCount不为零,但我没有得到的println()输出!我缺少什么吗?谢谢!
Then the blueCount is not zero, but I got no println() output! Am I missing anything here? Thanks!
推荐答案
我能够通过一个UtilityFunction各地工作吧:
I was able to work it around by making an UtilityFunction:
object PrintUtiltity {
def print(data:String) = {
println(data)
}
}
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