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/*
* 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.
*/
package org.apache.spark
import java.util.concurrent.{TimeUnit, Executors}
import scala.concurrent.duration._
import scala.language.postfixOps
import scala.util.{Try, Random}
import org.apache.spark.network.util.ByteUnit
import org.apache.spark.serializer.{KryoRegistrator, KryoSerializer}
import org.apache.spark.util.{RpcUtils, ResetSystemProperties}
import com.esotericsoftware.kryo.Kryo
class SparkConfSuite extends SparkFunSuite with LocalSparkContext with ResetSystemProperties {
test("Test byteString conversion") {
val conf = new SparkConf()
// Simply exercise the API, we don't need a complete conversion test since that's handled in
// UtilsSuite.scala
assert(conf.getSizeAsBytes("fake", "1k") === ByteUnit.KiB.toBytes(1))
assert(conf.getSizeAsKb("fake", "1k") === ByteUnit.KiB.toKiB(1))
assert(conf.getSizeAsMb("fake", "1k") === ByteUnit.KiB.toMiB(1))
assert(conf.getSizeAsGb("fake", "1k") === ByteUnit.KiB.toGiB(1))
}
test("Test timeString conversion") {
val conf = new SparkConf()
// Simply exercise the API, we don't need a complete conversion test since that's handled in
// UtilsSuite.scala
assert(conf.getTimeAsMs("fake", "1ms") === TimeUnit.MILLISECONDS.toMillis(1))
assert(conf.getTimeAsSeconds("fake", "1000ms") === TimeUnit.MILLISECONDS.toSeconds(1000))
}
test("loading from system properties") {
System.setProperty("spark.test.testProperty", "2")
val conf = new SparkConf()
assert(conf.get("spark.test.testProperty") === "2")
}
test("initializing without loading defaults") {
System.setProperty("spark.test.testProperty", "2")
val conf = new SparkConf(false)
assert(!conf.contains("spark.test.testProperty"))
}
test("named set methods") {
val conf = new SparkConf(false)
conf.setMaster("local[3]")
conf.setAppName("My app")
conf.setSparkHome("/path")
conf.setJars(Seq("a.jar", "b.jar"))
conf.setExecutorEnv("VAR1", "value1")
conf.setExecutorEnv(Seq(("VAR2", "value2"), ("VAR3", "value3")))
assert(conf.get("spark.master") === "local[3]")
assert(conf.get("spark.app.name") === "My app")
assert(conf.get("spark.home") === "/path")
assert(conf.get("spark.jars") === "a.jar,b.jar")
assert(conf.get("spark.executorEnv.VAR1") === "value1")
assert(conf.get("spark.executorEnv.VAR2") === "value2")
assert(conf.get("spark.executorEnv.VAR3") === "value3")
// Test the Java-friendly versions of these too
conf.setJars(Array("c.jar", "d.jar"))
conf.setExecutorEnv(Array(("VAR4", "value4"), ("VAR5", "value5")))
assert(conf.get("spark.jars") === "c.jar,d.jar")
assert(conf.get("spark.executorEnv.VAR4") === "value4")
assert(conf.get("spark.executorEnv.VAR5") === "value5")
}
test("basic get and set") {
val conf = new SparkConf(false)
assert(conf.getAll.toSet === Set())
conf.set("k1", "v1")
conf.setAll(Seq(("k2", "v2"), ("k3", "v3")))
assert(conf.getAll.toSet === Set(("k1", "v1"), ("k2", "v2"), ("k3", "v3")))
conf.set("k1", "v4")
conf.setAll(Seq(("k2", "v5"), ("k3", "v6")))
assert(conf.getAll.toSet === Set(("k1", "v4"), ("k2", "v5"), ("k3", "v6")))
assert(conf.contains("k1"), "conf did not contain k1")
assert(!conf.contains("k4"), "conf contained k4")
assert(conf.get("k1") === "v4")
intercept[Exception] { conf.get("k4") }
assert(conf.get("k4", "not found") === "not found")
assert(conf.getOption("k1") === Some("v4"))
assert(conf.getOption("k4") === None)
}
test("creating SparkContext without master and app name") {
val conf = new SparkConf(false)
intercept[SparkException] { sc = new SparkContext(conf) }
}
test("creating SparkContext without master") {
val conf = new SparkConf(false).setAppName("My app")
intercept[SparkException] { sc = new SparkContext(conf) }
}
test("creating SparkContext without app name") {
val conf = new SparkConf(false).setMaster("local")
intercept[SparkException] { sc = new SparkContext(conf) }
}
test("creating SparkContext with both master and app name") {
val conf = new SparkConf(false).setMaster("local").setAppName("My app")
sc = new SparkContext(conf)
assert(sc.master === "local")
assert(sc.appName === "My app")
}
test("SparkContext property overriding") {
val conf = new SparkConf(false).setMaster("local").setAppName("My app")
sc = new SparkContext("local[2]", "My other app", conf)
assert(sc.master === "local[2]")
assert(sc.appName === "My other app")
}
test("nested property names") {
// This wasn't supported by some external conf parsing libraries
System.setProperty("spark.test.a", "a")
System.setProperty("spark.test.a.b", "a.b")
System.setProperty("spark.test.a.b.c", "a.b.c")
val conf = new SparkConf()
assert(conf.get("spark.test.a") === "a")
assert(conf.get("spark.test.a.b") === "a.b")
assert(conf.get("spark.test.a.b.c") === "a.b.c")
conf.set("spark.test.a.b", "A.B")
assert(conf.get("spark.test.a") === "a")
assert(conf.get("spark.test.a.b") === "A.B")
assert(conf.get("spark.test.a.b.c") === "a.b.c")
}
test("Thread safeness - SPARK-5425") {
import scala.collection.JavaConversions._
val executor = Executors.newSingleThreadScheduledExecutor()
val sf = executor.scheduleAtFixedRate(new Runnable {
override def run(): Unit =
System.setProperty("spark.5425." + Random.nextInt(), Random.nextInt().toString)
}, 0, 1, TimeUnit.MILLISECONDS)
try {
val t0 = System.currentTimeMillis()
while ((System.currentTimeMillis() - t0) < 1000) {
val conf = Try(new SparkConf(loadDefaults = true))
assert(conf.isSuccess === true)
}
} finally {
executor.shutdownNow()
for (key <- System.getProperties.stringPropertyNames() if key.startsWith("spark.5425."))
System.getProperties.remove(key)
}
}
test("register kryo classes through registerKryoClasses") {
val conf = new SparkConf().set("spark.kryo.registrationRequired", "true")
conf.registerKryoClasses(Array(classOf[Class1], classOf[Class2]))
assert(conf.get("spark.kryo.classesToRegister") ===
classOf[Class1].getName + "," + classOf[Class2].getName)
conf.registerKryoClasses(Array(classOf[Class3]))
assert(conf.get("spark.kryo.classesToRegister") ===
classOf[Class1].getName + "," + classOf[Class2].getName + "," + classOf[Class3].getName)
conf.registerKryoClasses(Array(classOf[Class2]))
assert(conf.get("spark.kryo.classesToRegister") ===
classOf[Class1].getName + "," + classOf[Class2].getName + "," + classOf[Class3].getName)
// Kryo doesn't expose a way to discover registered classes, but at least make sure this doesn't
// blow up.
val serializer = new KryoSerializer(conf)
serializer.newInstance().serialize(new Class1())
serializer.newInstance().serialize(new Class2())
serializer.newInstance().serialize(new Class3())
}
test("register kryo classes through registerKryoClasses and custom registrator") {
val conf = new SparkConf().set("spark.kryo.registrationRequired", "true")
conf.registerKryoClasses(Array(classOf[Class1]))
assert(conf.get("spark.kryo.classesToRegister") === classOf[Class1].getName)
conf.set("spark.kryo.registrator", classOf[CustomRegistrator].getName)
// Kryo doesn't expose a way to discover registered classes, but at least make sure this doesn't
// blow up.
val serializer = new KryoSerializer(conf)
serializer.newInstance().serialize(new Class1())
serializer.newInstance().serialize(new Class2())
}
test("register kryo classes through conf") {
val conf = new SparkConf().set("spark.kryo.registrationRequired", "true")
conf.set("spark.kryo.classesToRegister", "java.lang.StringBuffer")
conf.set("spark.serializer", classOf[KryoSerializer].getName)
// Kryo doesn't expose a way to discover registered classes, but at least make sure this doesn't
// blow up.
val serializer = new KryoSerializer(conf)
serializer.newInstance().serialize(new StringBuffer())
}
test("deprecated configs") {
val conf = new SparkConf()
val newName = "spark.history.fs.update.interval"
assert(!conf.contains(newName))
conf.set("spark.history.updateInterval", "1")
assert(conf.get(newName) === "1")
conf.set("spark.history.fs.updateInterval", "2")
assert(conf.get(newName) === "2")
conf.set("spark.history.fs.update.interval.seconds", "3")
assert(conf.get(newName) === "3")
conf.set(newName, "4")
assert(conf.get(newName) === "4")
val count = conf.getAll.filter { case (k, v) => k.startsWith("spark.history.") }.size
assert(count === 4)
conf.set("spark.yarn.applicationMaster.waitTries", "42")
assert(conf.getTimeAsSeconds("spark.yarn.am.waitTime") === 420)
conf.set("spark.kryoserializer.buffer.mb", "1.1")
assert(conf.getSizeAsKb("spark.kryoserializer.buffer") === 1100)
}
test("akka deprecated configs") {
val conf = new SparkConf()
assert(!conf.contains("spark.rpc.numRetries"))
assert(!conf.contains("spark.rpc.retry.wait"))
assert(!conf.contains("spark.rpc.askTimeout"))
assert(!conf.contains("spark.rpc.lookupTimeout"))
conf.set("spark.akka.num.retries", "1")
assert(RpcUtils.numRetries(conf) === 1)
conf.set("spark.akka.retry.wait", "2")
assert(RpcUtils.retryWaitMs(conf) === 2L)
conf.set("spark.akka.askTimeout", "3")
assert(RpcUtils.askTimeout(conf) === (3 seconds))
conf.set("spark.akka.lookupTimeout", "4")
assert(RpcUtils.lookupTimeout(conf) === (4 seconds))
}
}
class Class1 {}
class Class2 {}
class Class3 {}
class CustomRegistrator extends KryoRegistrator {
def registerClasses(kryo: Kryo) {
kryo.register(classOf[Class2])
}
}
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