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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.util
import java.io.{ByteArrayInputStream, ByteArrayOutputStream, File, FileOutputStream, PrintStream}
import java.lang.{Double => JDouble, Float => JFloat}
import java.net.{BindException, ServerSocket, URI}
import java.nio.{ByteBuffer, ByteOrder}
import java.nio.charset.StandardCharsets
import java.text.DecimalFormatSymbols
import java.util.Locale
import java.util.concurrent.TimeUnit
import scala.collection.mutable.ListBuffer
import scala.util.Random
import com.google.common.io.Files
import org.apache.commons.lang3.SystemUtils
import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.fs.Path
import org.apache.spark.{SparkConf, SparkFunSuite}
import org.apache.spark.internal.Logging
import org.apache.spark.network.util.ByteUnit
class UtilsSuite extends SparkFunSuite with ResetSystemProperties with Logging {
test("truncatedString") {
assert(Utils.truncatedString(Nil, "[", ", ", "]", 2) == "[]")
assert(Utils.truncatedString(Seq(1, 2), "[", ", ", "]", 2) == "[1, 2]")
assert(Utils.truncatedString(Seq(1, 2, 3), "[", ", ", "]", 2) == "[1, ... 2 more fields]")
assert(Utils.truncatedString(Seq(1, 2, 3), "[", ", ", "]", -5) == "[, ... 3 more fields]")
assert(Utils.truncatedString(Seq(1, 2, 3), ", ") == "1, 2, 3")
}
test("timeConversion") {
// Test -1
assert(Utils.timeStringAsSeconds("-1") === -1)
// Test zero
assert(Utils.timeStringAsSeconds("0") === 0)
assert(Utils.timeStringAsSeconds("1") === 1)
assert(Utils.timeStringAsSeconds("1s") === 1)
assert(Utils.timeStringAsSeconds("1000ms") === 1)
assert(Utils.timeStringAsSeconds("1000000us") === 1)
assert(Utils.timeStringAsSeconds("1m") === TimeUnit.MINUTES.toSeconds(1))
assert(Utils.timeStringAsSeconds("1min") === TimeUnit.MINUTES.toSeconds(1))
assert(Utils.timeStringAsSeconds("1h") === TimeUnit.HOURS.toSeconds(1))
assert(Utils.timeStringAsSeconds("1d") === TimeUnit.DAYS.toSeconds(1))
assert(Utils.timeStringAsMs("1") === 1)
assert(Utils.timeStringAsMs("1ms") === 1)
assert(Utils.timeStringAsMs("1000us") === 1)
assert(Utils.timeStringAsMs("1s") === TimeUnit.SECONDS.toMillis(1))
assert(Utils.timeStringAsMs("1m") === TimeUnit.MINUTES.toMillis(1))
assert(Utils.timeStringAsMs("1min") === TimeUnit.MINUTES.toMillis(1))
assert(Utils.timeStringAsMs("1h") === TimeUnit.HOURS.toMillis(1))
assert(Utils.timeStringAsMs("1d") === TimeUnit.DAYS.toMillis(1))
// Test invalid strings
intercept[NumberFormatException] {
Utils.timeStringAsMs("600l")
}
intercept[NumberFormatException] {
Utils.timeStringAsMs("This breaks 600s")
}
intercept[NumberFormatException] {
Utils.timeStringAsMs("This breaks 600ds")
}
intercept[NumberFormatException] {
Utils.timeStringAsMs("600s This breaks")
}
intercept[NumberFormatException] {
Utils.timeStringAsMs("This 123s breaks")
}
}
test("Test byteString conversion") {
// Test zero
assert(Utils.byteStringAsBytes("0") === 0)
assert(Utils.byteStringAsGb("1") === 1)
assert(Utils.byteStringAsGb("1g") === 1)
assert(Utils.byteStringAsGb("1023m") === 0)
assert(Utils.byteStringAsGb("1024m") === 1)
assert(Utils.byteStringAsGb("1048575k") === 0)
assert(Utils.byteStringAsGb("1048576k") === 1)
assert(Utils.byteStringAsGb("1k") === 0)
assert(Utils.byteStringAsGb("1t") === ByteUnit.TiB.toGiB(1))
assert(Utils.byteStringAsGb("1p") === ByteUnit.PiB.toGiB(1))
assert(Utils.byteStringAsMb("1") === 1)
assert(Utils.byteStringAsMb("1m") === 1)
assert(Utils.byteStringAsMb("1048575b") === 0)
assert(Utils.byteStringAsMb("1048576b") === 1)
assert(Utils.byteStringAsMb("1023k") === 0)
assert(Utils.byteStringAsMb("1024k") === 1)
assert(Utils.byteStringAsMb("3645k") === 3)
assert(Utils.byteStringAsMb("1024gb") === 1048576)
assert(Utils.byteStringAsMb("1g") === ByteUnit.GiB.toMiB(1))
assert(Utils.byteStringAsMb("1t") === ByteUnit.TiB.toMiB(1))
assert(Utils.byteStringAsMb("1p") === ByteUnit.PiB.toMiB(1))
assert(Utils.byteStringAsKb("1") === 1)
assert(Utils.byteStringAsKb("1k") === 1)
assert(Utils.byteStringAsKb("1m") === ByteUnit.MiB.toKiB(1))
assert(Utils.byteStringAsKb("1g") === ByteUnit.GiB.toKiB(1))
assert(Utils.byteStringAsKb("1t") === ByteUnit.TiB.toKiB(1))
assert(Utils.byteStringAsKb("1p") === ByteUnit.PiB.toKiB(1))
assert(Utils.byteStringAsBytes("1") === 1)
assert(Utils.byteStringAsBytes("1k") === ByteUnit.KiB.toBytes(1))
assert(Utils.byteStringAsBytes("1m") === ByteUnit.MiB.toBytes(1))
assert(Utils.byteStringAsBytes("1g") === ByteUnit.GiB.toBytes(1))
assert(Utils.byteStringAsBytes("1t") === ByteUnit.TiB.toBytes(1))
assert(Utils.byteStringAsBytes("1p") === ByteUnit.PiB.toBytes(1))
// Overflow handling, 1073741824p exceeds Long.MAX_VALUE if converted straight to Bytes
// This demonstrates that we can have e.g 1024^3 PB without overflowing.
assert(Utils.byteStringAsGb("1073741824p") === ByteUnit.PiB.toGiB(1073741824))
assert(Utils.byteStringAsMb("1073741824p") === ByteUnit.PiB.toMiB(1073741824))
// Run this to confirm it doesn't throw an exception
assert(Utils.byteStringAsBytes("9223372036854775807") === 9223372036854775807L)
assert(ByteUnit.PiB.toPiB(9223372036854775807L) === 9223372036854775807L)
// Test overflow exception
intercept[IllegalArgumentException] {
// This value exceeds Long.MAX when converted to bytes
Utils.byteStringAsBytes("9223372036854775808")
}
// Test overflow exception
intercept[IllegalArgumentException] {
// This value exceeds Long.MAX when converted to TB
ByteUnit.PiB.toTiB(9223372036854775807L)
}
// Test fractional string
intercept[NumberFormatException] {
Utils.byteStringAsMb("0.064")
}
// Test fractional string
intercept[NumberFormatException] {
Utils.byteStringAsMb("0.064m")
}
// Test invalid strings
intercept[NumberFormatException] {
Utils.byteStringAsBytes("500ub")
}
// Test invalid strings
intercept[NumberFormatException] {
Utils.byteStringAsBytes("This breaks 600b")
}
intercept[NumberFormatException] {
Utils.byteStringAsBytes("This breaks 600")
}
intercept[NumberFormatException] {
Utils.byteStringAsBytes("600gb This breaks")
}
intercept[NumberFormatException] {
Utils.byteStringAsBytes("This 123mb breaks")
}
}
test("bytesToString") {
assert(Utils.bytesToString(10) === "10.0 B")
assert(Utils.bytesToString(1500) === "1500.0 B")
assert(Utils.bytesToString(2000000) === "1953.1 KB")
assert(Utils.bytesToString(2097152) === "2.0 MB")
assert(Utils.bytesToString(2306867) === "2.2 MB")
assert(Utils.bytesToString(5368709120L) === "5.0 GB")
assert(Utils.bytesToString(5L * 1024L * 1024L * 1024L * 1024L) === "5.0 TB")
}
test("copyStream") {
// input array initialization
val bytes = Array.ofDim[Byte](9000)
Random.nextBytes(bytes)
val os = new ByteArrayOutputStream()
Utils.copyStream(new ByteArrayInputStream(bytes), os)
assert(os.toByteArray.toList.equals(bytes.toList))
}
test("memoryStringToMb") {
assert(Utils.memoryStringToMb("1") === 0)
assert(Utils.memoryStringToMb("1048575") === 0)
assert(Utils.memoryStringToMb("3145728") === 3)
assert(Utils.memoryStringToMb("1024k") === 1)
assert(Utils.memoryStringToMb("5000k") === 4)
assert(Utils.memoryStringToMb("4024k") === Utils.memoryStringToMb("4024K"))
assert(Utils.memoryStringToMb("1024m") === 1024)
assert(Utils.memoryStringToMb("5000m") === 5000)
assert(Utils.memoryStringToMb("4024m") === Utils.memoryStringToMb("4024M"))
assert(Utils.memoryStringToMb("2g") === 2048)
assert(Utils.memoryStringToMb("3g") === Utils.memoryStringToMb("3G"))
assert(Utils.memoryStringToMb("2t") === 2097152)
assert(Utils.memoryStringToMb("3t") === Utils.memoryStringToMb("3T"))
}
test("splitCommandString") {
assert(Utils.splitCommandString("") === Seq())
assert(Utils.splitCommandString("a") === Seq("a"))
assert(Utils.splitCommandString("aaa") === Seq("aaa"))
assert(Utils.splitCommandString("a b c") === Seq("a", "b", "c"))
assert(Utils.splitCommandString(" a b\t c ") === Seq("a", "b", "c"))
assert(Utils.splitCommandString("a 'b c'") === Seq("a", "b c"))
assert(Utils.splitCommandString("a 'b c' d") === Seq("a", "b c", "d"))
assert(Utils.splitCommandString("'b c'") === Seq("b c"))
assert(Utils.splitCommandString("a \"b c\"") === Seq("a", "b c"))
assert(Utils.splitCommandString("a \"b c\" d") === Seq("a", "b c", "d"))
assert(Utils.splitCommandString("\"b c\"") === Seq("b c"))
assert(Utils.splitCommandString("a 'b\" c' \"d' e\"") === Seq("a", "b\" c", "d' e"))
assert(Utils.splitCommandString("a\t'b\nc'\nd") === Seq("a", "b\nc", "d"))
assert(Utils.splitCommandString("a \"b\\\\c\"") === Seq("a", "b\\c"))
assert(Utils.splitCommandString("a \"b\\\"c\"") === Seq("a", "b\"c"))
assert(Utils.splitCommandString("a 'b\\\"c'") === Seq("a", "b\\\"c"))
assert(Utils.splitCommandString("'a'b") === Seq("ab"))
assert(Utils.splitCommandString("'a''b'") === Seq("ab"))
assert(Utils.splitCommandString("\"a\"b") === Seq("ab"))
assert(Utils.splitCommandString("\"a\"\"b\"") === Seq("ab"))
assert(Utils.splitCommandString("''") === Seq(""))
assert(Utils.splitCommandString("\"\"") === Seq(""))
}
test("string formatting of time durations") {
val second = 1000
val minute = second * 60
val hour = minute * 60
def str: (Long) => String = Utils.msDurationToString(_)
val sep = new DecimalFormatSymbols(Locale.getDefault()).getDecimalSeparator()
assert(str(123) === "123 ms")
assert(str(second) === "1" + sep + "0 s")
assert(str(second + 462) === "1" + sep + "5 s")
assert(str(hour) === "1" + sep + "00 h")
assert(str(minute) === "1" + sep + "0 m")
assert(str(minute + 4 * second + 34) === "1" + sep + "1 m")
assert(str(10 * hour + minute + 4 * second) === "10" + sep + "02 h")
assert(str(10 * hour + 59 * minute + 59 * second + 999) === "11" + sep + "00 h")
}
test("reading offset bytes of a file") {
val tmpDir2 = Utils.createTempDir()
val f1Path = tmpDir2 + "/f1"
val f1 = new FileOutputStream(f1Path)
f1.write("1\n2\n3\n4\n5\n6\n7\n8\n9\n".getBytes(StandardCharsets.UTF_8))
f1.close()
// Read first few bytes
assert(Utils.offsetBytes(f1Path, 0, 5) === "1\n2\n3")
// Read some middle bytes
assert(Utils.offsetBytes(f1Path, 4, 11) === "3\n4\n5\n6")
// Read last few bytes
assert(Utils.offsetBytes(f1Path, 12, 18) === "7\n8\n9\n")
// Read some nonexistent bytes in the beginning
assert(Utils.offsetBytes(f1Path, -5, 5) === "1\n2\n3")
// Read some nonexistent bytes at the end
assert(Utils.offsetBytes(f1Path, 12, 22) === "7\n8\n9\n")
// Read some nonexistent bytes on both ends
assert(Utils.offsetBytes(f1Path, -3, 25) === "1\n2\n3\n4\n5\n6\n7\n8\n9\n")
Utils.deleteRecursively(tmpDir2)
}
test("reading offset bytes across multiple files") {
val tmpDir = Utils.createTempDir()
val files = (1 to 3).map(i => new File(tmpDir, i.toString))
Files.write("0123456789", files(0), StandardCharsets.UTF_8)
Files.write("abcdefghij", files(1), StandardCharsets.UTF_8)
Files.write("ABCDEFGHIJ", files(2), StandardCharsets.UTF_8)
// Read first few bytes in the 1st file
assert(Utils.offsetBytes(files, 0, 5) === "01234")
// Read bytes within the 1st file
assert(Utils.offsetBytes(files, 5, 8) === "567")
// Read bytes across 1st and 2nd file
assert(Utils.offsetBytes(files, 8, 18) === "89abcdefgh")
// Read bytes across 1st, 2nd and 3rd file
assert(Utils.offsetBytes(files, 5, 24) === "56789abcdefghijABCD")
// Read some nonexistent bytes in the beginning
assert(Utils.offsetBytes(files, -5, 18) === "0123456789abcdefgh")
// Read some nonexistent bytes at the end
assert(Utils.offsetBytes(files, 18, 35) === "ijABCDEFGHIJ")
// Read some nonexistent bytes on both ends
assert(Utils.offsetBytes(files, -5, 35) === "0123456789abcdefghijABCDEFGHIJ")
Utils.deleteRecursively(tmpDir)
}
test("deserialize long value") {
val testval : Long = 9730889947L
val bbuf = ByteBuffer.allocate(8)
assert(bbuf.hasArray)
bbuf.order(ByteOrder.BIG_ENDIAN)
bbuf.putLong(testval)
assert(bbuf.array.length === 8)
assert(Utils.deserializeLongValue(bbuf.array) === testval)
}
test("get iterator size") {
val empty = Seq[Int]()
assert(Utils.getIteratorSize(empty.toIterator) === 0L)
val iterator = Iterator.range(0, 5)
assert(Utils.getIteratorSize(iterator) === 5L)
}
test("doesDirectoryContainFilesNewerThan") {
// create some temporary directories and files
val parent: File = Utils.createTempDir()
// The parent directory has two child directories
val child1: File = Utils.createTempDir(parent.getCanonicalPath)
val child2: File = Utils.createTempDir(parent.getCanonicalPath)
val child3: File = Utils.createTempDir(child1.getCanonicalPath)
// set the last modified time of child1 to 30 secs old
child1.setLastModified(System.currentTimeMillis() - (1000 * 30))
// although child1 is old, child2 is still new so return true
assert(Utils.doesDirectoryContainAnyNewFiles(parent, 5))
child2.setLastModified(System.currentTimeMillis - (1000 * 30))
assert(Utils.doesDirectoryContainAnyNewFiles(parent, 5))
parent.setLastModified(System.currentTimeMillis - (1000 * 30))
// although parent and its immediate children are new, child3 is still old
// we expect a full recursive search for new files.
assert(Utils.doesDirectoryContainAnyNewFiles(parent, 5))
child3.setLastModified(System.currentTimeMillis - (1000 * 30))
assert(!Utils.doesDirectoryContainAnyNewFiles(parent, 5))
}
test("resolveURI") {
def assertResolves(before: String, after: String): Unit = {
// This should test only single paths
assume(before.split(",").length === 1)
// Repeated invocations of resolveURI should yield the same result
def resolve(uri: String): String = Utils.resolveURI(uri).toString
assert(resolve(after) === after)
assert(resolve(resolve(after)) === after)
assert(resolve(resolve(resolve(after))) === after)
// Also test resolveURIs with single paths
assert(new URI(Utils.resolveURIs(before)) === new URI(after))
assert(new URI(Utils.resolveURIs(after)) === new URI(after))
}
val rawCwd = System.getProperty("user.dir")
val cwd = if (Utils.isWindows) s"/$rawCwd".replace("\\", "/") else rawCwd
assertResolves("hdfs:/root/spark.jar", "hdfs:/root/spark.jar")
assertResolves("hdfs:///root/spark.jar#app.jar", "hdfs:/root/spark.jar#app.jar")
assertResolves("spark.jar", s"file:$cwd/spark.jar")
assertResolves("spark.jar#app.jar", s"file:$cwd/spark.jar#app.jar")
assertResolves("path to/file.txt", s"file:$cwd/path%20to/file.txt")
if (Utils.isWindows) {
assertResolves("C:\\path\\to\\file.txt", "file:/C:/path/to/file.txt")
assertResolves("C:\\path to\\file.txt", "file:/C:/path%20to/file.txt")
}
assertResolves("file:/C:/path/to/file.txt", "file:/C:/path/to/file.txt")
assertResolves("file:///C:/path/to/file.txt", "file:/C:/path/to/file.txt")
assertResolves("file:/C:/file.txt#alias.txt", "file:/C:/file.txt#alias.txt")
assertResolves("file:foo", s"file:foo")
assertResolves("file:foo:baby", s"file:foo:baby")
}
test("resolveURIs with multiple paths") {
def assertResolves(before: String, after: String): Unit = {
assume(before.split(",").length > 1)
assert(Utils.resolveURIs(before) === after)
assert(Utils.resolveURIs(after) === after)
// Repeated invocations of resolveURIs should yield the same result
def resolve(uri: String): String = Utils.resolveURIs(uri)
assert(resolve(after) === after)
assert(resolve(resolve(after)) === after)
assert(resolve(resolve(resolve(after))) === after)
}
val rawCwd = System.getProperty("user.dir")
val cwd = if (Utils.isWindows) s"/$rawCwd".replace("\\", "/") else rawCwd
assertResolves("jar1,jar2", s"file:$cwd/jar1,file:$cwd/jar2")
assertResolves("file:/jar1,file:/jar2", "file:/jar1,file:/jar2")
assertResolves("hdfs:/jar1,file:/jar2,jar3", s"hdfs:/jar1,file:/jar2,file:$cwd/jar3")
assertResolves("hdfs:/jar1,file:/jar2,jar3,jar4#jar5,path to/jar6",
s"hdfs:/jar1,file:/jar2,file:$cwd/jar3,file:$cwd/jar4#jar5,file:$cwd/path%20to/jar6")
if (Utils.isWindows) {
assertResolves("""hdfs:/jar1,file:/jar2,jar3,C:\pi.py#py.pi,C:\path to\jar4""",
s"hdfs:/jar1,file:/jar2,file:$cwd/jar3,file:/C:/pi.py#py.pi,file:/C:/path%20to/jar4")
}
}
test("nonLocalPaths") {
assert(Utils.nonLocalPaths("spark.jar") === Array.empty)
assert(Utils.nonLocalPaths("file:/spark.jar") === Array.empty)
assert(Utils.nonLocalPaths("file:///spark.jar") === Array.empty)
assert(Utils.nonLocalPaths("local:/spark.jar") === Array.empty)
assert(Utils.nonLocalPaths("local:///spark.jar") === Array.empty)
assert(Utils.nonLocalPaths("hdfs:/spark.jar") === Array("hdfs:/spark.jar"))
assert(Utils.nonLocalPaths("hdfs:///spark.jar") === Array("hdfs:///spark.jar"))
assert(Utils.nonLocalPaths("file:/spark.jar,local:/smart.jar,family.py") === Array.empty)
assert(Utils.nonLocalPaths("local:/spark.jar,file:/smart.jar,family.py") === Array.empty)
assert(Utils.nonLocalPaths("hdfs:/spark.jar,s3:/smart.jar") ===
Array("hdfs:/spark.jar", "s3:/smart.jar"))
assert(Utils.nonLocalPaths("hdfs:/spark.jar,path to/a.jar,s3:/smart.jar") ===
Array("hdfs:/spark.jar", "s3:/smart.jar"))
assert(Utils.nonLocalPaths("hdfs:/spark.jar,s3:/smart.jar,local.py,file:/hello/pi.py") ===
Array("hdfs:/spark.jar", "s3:/smart.jar"))
assert(Utils.nonLocalPaths("local.py,hdfs:/spark.jar,file:/hello/pi.py,s3:/smart.jar") ===
Array("hdfs:/spark.jar", "s3:/smart.jar"))
// Test Windows paths
assert(Utils.nonLocalPaths("C:/some/path.jar", testWindows = true) === Array.empty)
assert(Utils.nonLocalPaths("file:/C:/some/path.jar", testWindows = true) === Array.empty)
assert(Utils.nonLocalPaths("file:///C:/some/path.jar", testWindows = true) === Array.empty)
assert(Utils.nonLocalPaths("local:/C:/some/path.jar", testWindows = true) === Array.empty)
assert(Utils.nonLocalPaths("local:///C:/some/path.jar", testWindows = true) === Array.empty)
assert(Utils.nonLocalPaths("hdfs:/a.jar,C:/my.jar,s3:/another.jar", testWindows = true) ===
Array("hdfs:/a.jar", "s3:/another.jar"))
assert(Utils.nonLocalPaths("D:/your.jar,hdfs:/a.jar,s3:/another.jar", testWindows = true) ===
Array("hdfs:/a.jar", "s3:/another.jar"))
assert(Utils.nonLocalPaths("hdfs:/a.jar,s3:/another.jar,e:/our.jar", testWindows = true) ===
Array("hdfs:/a.jar", "s3:/another.jar"))
}
test("isBindCollision") {
// Negatives
assert(!Utils.isBindCollision(null))
assert(!Utils.isBindCollision(new Exception))
assert(!Utils.isBindCollision(new Exception(new Exception)))
assert(!Utils.isBindCollision(new Exception(new BindException)))
// Positives
val be = new BindException("Random Message")
val be1 = new Exception(new BindException("Random Message"))
val be2 = new Exception(new Exception(new BindException("Random Message")))
assert(Utils.isBindCollision(be))
assert(Utils.isBindCollision(be1))
assert(Utils.isBindCollision(be2))
// Actual bind exception
var server1: ServerSocket = null
var server2: ServerSocket = null
try {
server1 = new java.net.ServerSocket(0)
server2 = new java.net.ServerSocket(server1.getLocalPort)
} catch {
case e: Exception =>
assert(e.isInstanceOf[java.net.BindException])
assert(Utils.isBindCollision(e))
} finally {
Option(server1).foreach(_.close())
Option(server2).foreach(_.close())
}
}
// Test for using the util function to change our log levels.
test("log4j log level change") {
val current = org.apache.log4j.Logger.getRootLogger().getLevel()
try {
Utils.setLogLevel(org.apache.log4j.Level.ALL)
assert(log.isInfoEnabled())
Utils.setLogLevel(org.apache.log4j.Level.ERROR)
assert(!log.isInfoEnabled())
assert(log.isErrorEnabled())
} finally {
// Best effort at undoing changes this test made.
Utils.setLogLevel(current)
}
}
test("deleteRecursively") {
val tempDir1 = Utils.createTempDir()
assert(tempDir1.exists())
Utils.deleteRecursively(tempDir1)
assert(!tempDir1.exists())
val tempDir2 = Utils.createTempDir()
val sourceFile1 = new File(tempDir2, "foo.txt")
Files.touch(sourceFile1)
assert(sourceFile1.exists())
Utils.deleteRecursively(sourceFile1)
assert(!sourceFile1.exists())
val tempDir3 = new File(tempDir2, "subdir")
assert(tempDir3.mkdir())
val sourceFile2 = new File(tempDir3, "bar.txt")
Files.touch(sourceFile2)
assert(sourceFile2.exists())
Utils.deleteRecursively(tempDir2)
assert(!tempDir2.exists())
assert(!tempDir3.exists())
assert(!sourceFile2.exists())
}
test("loading properties from file") {
val tmpDir = Utils.createTempDir()
val outFile = File.createTempFile("test-load-spark-properties", "test", tmpDir)
try {
System.setProperty("spark.test.fileNameLoadB", "2")
Files.write("spark.test.fileNameLoadA true\n" +
"spark.test.fileNameLoadB 1\n", outFile, StandardCharsets.UTF_8)
val properties = Utils.getPropertiesFromFile(outFile.getAbsolutePath)
properties
.filter { case (k, v) => k.startsWith("spark.")}
.foreach { case (k, v) => sys.props.getOrElseUpdate(k, v)}
val sparkConf = new SparkConf
assert(sparkConf.getBoolean("spark.test.fileNameLoadA", false) === true)
assert(sparkConf.getInt("spark.test.fileNameLoadB", 1) === 2)
} finally {
Utils.deleteRecursively(tmpDir)
}
}
test("timeIt with prepare") {
var cnt = 0
val prepare = () => {
cnt += 1
Thread.sleep(1000)
}
val time = Utils.timeIt(2)({}, Some(prepare))
require(cnt === 2, "prepare should be called twice")
require(time < 500, "preparation time should not count")
}
test("fetch hcfs dir") {
val tempDir = Utils.createTempDir()
val sourceDir = new File(tempDir, "source-dir")
val innerSourceDir = Utils.createTempDir(root = sourceDir.getPath)
val sourceFile = File.createTempFile("someprefix", "somesuffix", innerSourceDir)
val targetDir = new File(tempDir, "target-dir")
Files.write("some text", sourceFile, StandardCharsets.UTF_8)
val path =
if (Utils.isWindows) {
new Path("file:/" + sourceDir.getAbsolutePath.replace("\\", "/"))
} else {
new Path("file://" + sourceDir.getAbsolutePath)
}
val conf = new Configuration()
val fs = Utils.getHadoopFileSystem(path.toString, conf)
assert(!targetDir.isDirectory())
Utils.fetchHcfsFile(path, targetDir, fs, new SparkConf(), conf, false)
assert(targetDir.isDirectory())
// Copy again to make sure it doesn't error if the dir already exists.
Utils.fetchHcfsFile(path, targetDir, fs, new SparkConf(), conf, false)
val destDir = new File(targetDir, sourceDir.getName())
assert(destDir.isDirectory())
val destInnerDir = new File(destDir, innerSourceDir.getName)
assert(destInnerDir.isDirectory())
val destInnerFile = new File(destInnerDir, sourceFile.getName)
assert(destInnerFile.isFile())
val filePath =
if (Utils.isWindows) {
new Path("file:/" + sourceFile.getAbsolutePath.replace("\\", "/"))
} else {
new Path("file://" + sourceFile.getAbsolutePath)
}
val testFileDir = new File(tempDir, "test-filename")
val testFileName = "testFName"
val testFilefs = Utils.getHadoopFileSystem(filePath.toString, conf)
Utils.fetchHcfsFile(filePath, testFileDir, testFilefs, new SparkConf(),
conf, false, Some(testFileName))
val newFileName = new File(testFileDir, testFileName)
assert(newFileName.isFile())
}
test("shutdown hook manager") {
val manager = new SparkShutdownHookManager()
val output = new ListBuffer[Int]()
val hook1 = manager.add(1, () => output += 1)
manager.add(3, () => output += 3)
manager.add(2, () => output += 2)
manager.add(4, () => output += 4)
manager.remove(hook1)
manager.runAll()
assert(output.toList === List(4, 3, 2))
}
test("isInDirectory") {
val tmpDir = new File(sys.props("java.io.tmpdir"))
val parentDir = new File(tmpDir, "parent-dir")
val childDir1 = new File(parentDir, "child-dir-1")
val childDir1b = new File(parentDir, "child-dir-1b")
val childFile1 = new File(parentDir, "child-file-1.txt")
val childDir2 = new File(childDir1, "child-dir-2")
val childDir2b = new File(childDir1, "child-dir-2b")
val childFile2 = new File(childDir1, "child-file-2.txt")
val childFile3 = new File(childDir2, "child-file-3.txt")
val nullFile: File = null
parentDir.mkdir()
childDir1.mkdir()
childDir1b.mkdir()
childDir2.mkdir()
childDir2b.mkdir()
childFile1.createNewFile()
childFile2.createNewFile()
childFile3.createNewFile()
// Identity
assert(Utils.isInDirectory(parentDir, parentDir))
assert(Utils.isInDirectory(childDir1, childDir1))
assert(Utils.isInDirectory(childDir2, childDir2))
// Valid ancestor-descendant pairs
assert(Utils.isInDirectory(parentDir, childDir1))
assert(Utils.isInDirectory(parentDir, childFile1))
assert(Utils.isInDirectory(parentDir, childDir2))
assert(Utils.isInDirectory(parentDir, childFile2))
assert(Utils.isInDirectory(parentDir, childFile3))
assert(Utils.isInDirectory(childDir1, childDir2))
assert(Utils.isInDirectory(childDir1, childFile2))
assert(Utils.isInDirectory(childDir1, childFile3))
assert(Utils.isInDirectory(childDir2, childFile3))
// Inverted ancestor-descendant pairs should fail
assert(!Utils.isInDirectory(childDir1, parentDir))
assert(!Utils.isInDirectory(childDir2, parentDir))
assert(!Utils.isInDirectory(childDir2, childDir1))
assert(!Utils.isInDirectory(childFile1, parentDir))
assert(!Utils.isInDirectory(childFile2, parentDir))
assert(!Utils.isInDirectory(childFile3, parentDir))
assert(!Utils.isInDirectory(childFile2, childDir1))
assert(!Utils.isInDirectory(childFile3, childDir1))
assert(!Utils.isInDirectory(childFile3, childDir2))
// Non-existent files or directories should fail
assert(!Utils.isInDirectory(parentDir, new File(parentDir, "one.txt")))
assert(!Utils.isInDirectory(parentDir, new File(parentDir, "one/two.txt")))
assert(!Utils.isInDirectory(parentDir, new File(parentDir, "one/two/three.txt")))
// Siblings should fail
assert(!Utils.isInDirectory(childDir1, childDir1b))
assert(!Utils.isInDirectory(childDir1, childFile1))
assert(!Utils.isInDirectory(childDir2, childDir2b))
assert(!Utils.isInDirectory(childDir2, childFile2))
// Null files should fail without throwing NPE
assert(!Utils.isInDirectory(parentDir, nullFile))
assert(!Utils.isInDirectory(childFile3, nullFile))
assert(!Utils.isInDirectory(nullFile, parentDir))
assert(!Utils.isInDirectory(nullFile, childFile3))
}
test("circular buffer: if nothing was written to the buffer, display nothing") {
val buffer = new CircularBuffer(4)
assert(buffer.toString === "")
}
test("circular buffer: if the buffer isn't full, print only the contents written") {
val buffer = new CircularBuffer(10)
val stream = new PrintStream(buffer, true, "UTF-8")
stream.print("test")
assert(buffer.toString === "test")
}
test("circular buffer: data written == size of the buffer") {
val buffer = new CircularBuffer(4)
val stream = new PrintStream(buffer, true, "UTF-8")
// fill the buffer to its exact size so that it just hits overflow
stream.print("test")
assert(buffer.toString === "test")
// add more data to the buffer
stream.print("12")
assert(buffer.toString === "st12")
}
test("circular buffer: multiple overflow") {
val buffer = new CircularBuffer(25)
val stream = new PrintStream(buffer, true, "UTF-8")
stream.print("test circular test circular test circular test circular test circular")
assert(buffer.toString === "st circular test circular")
}
test("nanSafeCompareDoubles") {
def shouldMatchDefaultOrder(a: Double, b: Double): Unit = {
assert(Utils.nanSafeCompareDoubles(a, b) === JDouble.compare(a, b))
assert(Utils.nanSafeCompareDoubles(b, a) === JDouble.compare(b, a))
}
shouldMatchDefaultOrder(0d, 0d)
shouldMatchDefaultOrder(0d, 1d)
shouldMatchDefaultOrder(Double.MinValue, Double.MaxValue)
assert(Utils.nanSafeCompareDoubles(Double.NaN, Double.NaN) === 0)
assert(Utils.nanSafeCompareDoubles(Double.NaN, Double.PositiveInfinity) === 1)
assert(Utils.nanSafeCompareDoubles(Double.NaN, Double.NegativeInfinity) === 1)
assert(Utils.nanSafeCompareDoubles(Double.PositiveInfinity, Double.NaN) === -1)
assert(Utils.nanSafeCompareDoubles(Double.NegativeInfinity, Double.NaN) === -1)
}
test("nanSafeCompareFloats") {
def shouldMatchDefaultOrder(a: Float, b: Float): Unit = {
assert(Utils.nanSafeCompareFloats(a, b) === JFloat.compare(a, b))
assert(Utils.nanSafeCompareFloats(b, a) === JFloat.compare(b, a))
}
shouldMatchDefaultOrder(0f, 0f)
shouldMatchDefaultOrder(1f, 1f)
shouldMatchDefaultOrder(Float.MinValue, Float.MaxValue)
assert(Utils.nanSafeCompareFloats(Float.NaN, Float.NaN) === 0)
assert(Utils.nanSafeCompareFloats(Float.NaN, Float.PositiveInfinity) === 1)
assert(Utils.nanSafeCompareFloats(Float.NaN, Float.NegativeInfinity) === 1)
assert(Utils.nanSafeCompareFloats(Float.PositiveInfinity, Float.NaN) === -1)
assert(Utils.nanSafeCompareFloats(Float.NegativeInfinity, Float.NaN) === -1)
}
test("isDynamicAllocationEnabled") {
val conf = new SparkConf()
conf.set("spark.master", "yarn-client")
assert(Utils.isDynamicAllocationEnabled(conf) === false)
assert(Utils.isDynamicAllocationEnabled(
conf.set("spark.dynamicAllocation.enabled", "false")) === false)
assert(Utils.isDynamicAllocationEnabled(
conf.set("spark.dynamicAllocation.enabled", "true")) === true)
assert(Utils.isDynamicAllocationEnabled(
conf.set("spark.executor.instances", "1")) === true)
assert(Utils.isDynamicAllocationEnabled(
conf.set("spark.executor.instances", "0")) === true)
assert(Utils.isDynamicAllocationEnabled(conf.set("spark.master", "local")) === false)
assert(Utils.isDynamicAllocationEnabled(conf.set("spark.dynamicAllocation.testing", "true")))
}
test("getDynamicAllocationInitialExecutors") {
val conf = new SparkConf()
assert(Utils.getDynamicAllocationInitialExecutors(conf) === 0)
assert(Utils.getDynamicAllocationInitialExecutors(
conf.set("spark.dynamicAllocation.minExecutors", "3")) === 3)
assert(Utils.getDynamicAllocationInitialExecutors( // should use minExecutors
conf.set("spark.executor.instances", "2")) === 3)
assert(Utils.getDynamicAllocationInitialExecutors( // should use executor.instances
conf.set("spark.executor.instances", "4")) === 4)
assert(Utils.getDynamicAllocationInitialExecutors( // should use executor.instances
conf.set("spark.dynamicAllocation.initialExecutors", "3")) === 4)
assert(Utils.getDynamicAllocationInitialExecutors( // should use initialExecutors
conf.set("spark.dynamicAllocation.initialExecutors", "5")) === 5)
}
test("encodeFileNameToURIRawPath") {
assert(Utils.encodeFileNameToURIRawPath("abc") === "abc")
assert(Utils.encodeFileNameToURIRawPath("abc xyz") === "abc%20xyz")
assert(Utils.encodeFileNameToURIRawPath("abc:xyz") === "abc:xyz")
}
test("decodeFileNameInURI") {
assert(Utils.decodeFileNameInURI(new URI("files:///abc/xyz")) === "xyz")
assert(Utils.decodeFileNameInURI(new URI("files:///abc")) === "abc")
assert(Utils.decodeFileNameInURI(new URI("files:///abc%20xyz")) === "abc xyz")
}
test("Kill process") {
// Verify that we can terminate a process even if it is in a bad state. This is only run
// on UNIX since it does some OS specific things to verify the correct behavior.
if (SystemUtils.IS_OS_UNIX) {
def getPid(p: Process): Int = {
val f = p.getClass().getDeclaredField("pid")
f.setAccessible(true)
f.get(p).asInstanceOf[Int]
}
def pidExists(pid: Int): Boolean = {
val p = Runtime.getRuntime.exec(s"kill -0 $pid")
p.waitFor()
p.exitValue() == 0
}
def signal(pid: Int, s: String): Unit = {
val p = Runtime.getRuntime.exec(s"kill -$s $pid")
p.waitFor()
}
// Start up a process that runs 'sleep 10'. Terminate the process and assert it takes
// less time and the process is no longer there.
val startTimeMs = System.currentTimeMillis()
val process = new ProcessBuilder("sleep", "10").start()
val pid = getPid(process)
try {
assert(pidExists(pid))
val terminated = Utils.terminateProcess(process, 5000)
assert(terminated.isDefined)
Utils.waitForProcess(process, 5000)
val durationMs = System.currentTimeMillis() - startTimeMs
assert(durationMs < 5000)
assert(!pidExists(pid))
} finally {
// Forcibly kill the test process just in case.
signal(pid, "SIGKILL")
}
val versionParts = System.getProperty("java.version").split("[+.\\-]+", 3)
var majorVersion = versionParts(0).toInt
if (majorVersion == 1) majorVersion = versionParts(1).toInt
if (majorVersion >= 8) {
// Java8 added a way to forcibly terminate a process. We'll make sure that works by
// creating a very misbehaving process. It ignores SIGTERM and has been SIGSTOPed. On
// older versions of java, this will *not* terminate.
val file = File.createTempFile("temp-file-name", ".tmp")
val cmd =
s"""
|#!/bin/bash
|trap "" SIGTERM
|sleep 10
""".stripMargin
Files.write(cmd.getBytes(StandardCharsets.UTF_8), file)
file.getAbsoluteFile.setExecutable(true)
val process = new ProcessBuilder(file.getAbsolutePath).start()
val pid = getPid(process)
assert(pidExists(pid))
try {
signal(pid, "SIGSTOP")
val start = System.currentTimeMillis()
val terminated = Utils.terminateProcess(process, 5000)
assert(terminated.isDefined)
Utils.waitForProcess(process, 5000)
val duration = System.currentTimeMillis() - start
assert(duration < 5000)
assert(!pidExists(pid))
} finally {
signal(pid, "SIGKILL")
}
}
}
}
}
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