小编Tim*_*ler的帖子

package learn.spark

import org.apache.spark.{SparkConf, SparkContext}

object MasterLocal2 {
  def main(args: Array[String]): Unit = {

    val conf = new SparkConf()

    conf.setAppName("spark-k8s")
    conf.setMaster("k8s://https://192.168.99.100:16443")

    conf.set("spark.driver.host", "192.168.99.1")
    conf.set("spark.executor.instances", "5")
    conf.set("spark.kubernetes.executor.request.cores", "0.1")
    conf.set("spark.kubernetes.container.image", "spark:latest")

    val sc = new SparkContext(conf)

    println(sc.parallelize(1 to 5).map(_ * 10).collect().mkString(", "))

    sc.stop()
  }
}

我试图加快 Spark 程序的本地运行速度，但出现了一些异常。我不知道如何配置将 JVM 的东西传递给执行器。

Exception in thread "main" org.apache.spark.SparkException: Job aborted due to stage failure: Task 1 in stage 0.0 failed 4 times, most recent failure: Lost task 1.3 in stage 0.0 (TID 8, 10.1.1.217, executor …

如何将自定义 ssh 公钥放入authorized_keysminikube 集群？为什么/home/docker/.ssh/authorized_keys重新启动后更改会丢失？如何有效地编辑此文件？

go界面中也有一些类似的设计。例如，读取和写入的结果只能是 values >= 0。为什么不直接使用unsigned int类型？使用签名类型的目的是什么？

// The Copy function uses ReaderFrom if available.
type ReaderFrom interface {
    ReadFrom(r Reader) (n int64, err error)
}

// The Copy function uses WriterTo if available.
type WriterTo interface {
    WriteTo(w Writer) (n int64, err error)
}