spark DriverSubmissionTest 源码
spark DriverSubmissionTest 代码
文件路径：/examples/src/main/scala/org/apache/spark/examples/DriverSubmissionTest.scala
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// scalastyle:off println
package org.apache.spark.examples
import scala.collection.JavaConverters._
import org.apache.spark.util.Utils
/**
* Prints out environmental information, sleeps, and then exits. Made to
* test driver submission in the standalone scheduler.
*/
object DriverSubmissionTest {
def main(args: Array[String]): Unit = {
if (args.length < 1) {
println("Usage: DriverSubmissionTest <seconds-to-sleep>")
System.exit(0)
}
val numSecondsToSleep = args(0).toInt
val env = System.getenv()
val properties = Utils.getSystemProperties
println("Environment variables containing SPARK_TEST:")
env.asScala.filter { case (k, _) => k.contains("SPARK_TEST")}.foreach(println)
println("System properties containing spark.test:")
properties.filter { case (k, _) => k.contains("spark.test") }.foreach(println)
for (i <- 1 until numSecondsToSleep) {
println(s"Alive for $i out of $numSecondsToSleep seconds")
Thread.sleep(1000)
}
}
}
// scalastyle:on println
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