spark-reviews mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From GitBox <...@apache.org>
Subject [GitHub] [spark] vanzin commented on a change in pull request #25670: [SPARK-28869][CORE] Roll over event log files
Date Wed, 02 Oct 2019 17:23:16 GMT
vanzin commented on a change in pull request #25670: [SPARK-28869][CORE] Roll over event log
files
URL: https://github.com/apache/spark/pull/25670#discussion_r330667655
 
 

 ##########
 File path: core/src/test/scala/org/apache/spark/deploy/history/EventLogFileReadersSuite.scala
 ##########
 @@ -0,0 +1,344 @@
+/*
+ * 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.deploy.history
+
+import java.io.{ByteArrayInputStream, ByteArrayOutputStream, File}
+import java.net.URI
+import java.nio.charset.StandardCharsets
+import java.util.zip.{ZipInputStream, ZipOutputStream}
+
+import scala.collection.mutable
+
+import com.google.common.io.{ByteStreams, Files}
+import org.apache.hadoop.conf.Configuration
+import org.apache.hadoop.fs.Path
+import org.scalatest.BeforeAndAfter
+
+import org.apache.spark.{LocalSparkContext, SparkConf, SparkFunSuite}
+import org.apache.spark.deploy.SparkHadoopUtil
+import org.apache.spark.deploy.history.EventLogTestHelper._
+import org.apache.spark.internal.Logging
+import org.apache.spark.internal.config._
+import org.apache.spark.io.CompressionCodec
+import org.apache.spark.util.Utils
+
+
+abstract class EventLogFileReadersSuite extends SparkFunSuite with LocalSparkContext
+  with BeforeAndAfter with Logging {
+
+  protected val fileSystem = Utils.getHadoopFileSystem("/",
+    SparkHadoopUtil.get.conf)
+  protected var testDir: File = _
+  protected var testDirPath: Path = _
+
+  before {
+    testDir = Utils.createTempDir(namePrefix = s"event log")
+    testDirPath = new Path(testDir.getAbsolutePath())
+  }
+
+  after {
+    Utils.deleteRecursively(testDir)
+  }
+
+  test("Retrieve EventLogFileReader correctly") {
+    def assertInstanceOfEventLogReader(
+        expectedClazz: Option[Class[_ <: EventLogFileReader]],
+        actual: Option[EventLogFileReader]): Unit = {
+      if (expectedClazz.isEmpty) {
+        assert(actual.isEmpty, s"Expected no EventLogFileReader instance but was " +
+          s"${actual.map(_.getClass).getOrElse("<None>")}")
+      } else {
+        assert(actual.isDefined, s"Expected an EventLogFileReader instance but was empty")
+        assert(expectedClazz.get.isAssignableFrom(actual.get.getClass),
+          s"Expected ${expectedClazz.get} but was ${actual.get.getClass}")
+      }
+    }
+
+    def testForPathWithoutSeq(
+        path: Path,
+        isFile: Boolean,
+        expectedClazz: Option[Class[_ <: EventLogFileReader]]): Unit = {
+      if (isFile) {
+        Utils.tryWithResource(fileSystem.create(path)) { is =>
+          is.writeInt(10)
+        }
+      } else {
+        fileSystem.mkdirs(path)
+      }
+
+      val reader = EventLogFileReader(fileSystem, path)
+      assertInstanceOfEventLogReader(expectedClazz, reader)
+      val reader2 = EventLogFileReader(fileSystem,
+        fileSystem.getFileStatus(path))
+      assertInstanceOfEventLogReader(expectedClazz, reader)
+    }
+
+    // path with no last index - single event log
+    val reader1 = EventLogFileReader(fileSystem, new Path(testDirPath, "aaa"),
+      None)
+    assertInstanceOfEventLogReader(Some(classOf[SingleFileEventLogFileReader]), Some(reader1))
+
+    // path with last index - rolling event log
+    val reader2 = EventLogFileReader(fileSystem,
+      new Path(testDirPath, "eventlog_v2_aaa"), Some(3))
+    assertInstanceOfEventLogReader(Some(classOf[RollingEventLogFilesFileReader]), Some(reader2))
+
+    // path - file (both path and FileStatus)
+    val eventLogFile = new Path(testDirPath, "bbb")
+    testForPathWithoutSeq(eventLogFile, isFile = true, Some(classOf[SingleFileEventLogFileReader]))
+
+    // path - file starting with "."
+    val invalidEventLogFile = new Path(testDirPath, ".bbb")
+    testForPathWithoutSeq(invalidEventLogFile, isFile = true, None)
+
+    // path - directory with "eventlog_v2_" prefix
+    val eventLogDir = new Path(testDirPath, "eventlog_v2_ccc")
+    testForPathWithoutSeq(eventLogDir, isFile = false,
+      Some(classOf[RollingEventLogFilesFileReader]))
+
+    // path - directory with no "eventlog_v2_" prefix
+    val invalidEventLogDir = new Path(testDirPath, "ccc")
+    testForPathWithoutSeq(invalidEventLogDir, isFile = false, None)
+  }
+
+  val allCodecs = Seq(None) ++
+    CompressionCodec.ALL_COMPRESSION_CODECS.map { c => Some(CompressionCodec.getShortName(c))
}
+
+  allCodecs.foreach { codecShortName =>
+    test(s"get information, list event log files, zip log files - with codec $codecShortName")
{
+      val appId = getUniqueApplicationId
+      val attemptId = None
+
+      val conf = getLoggingConf(testDirPath, codecShortName)
+      val hadoopConf = SparkHadoopUtil.get.newConfiguration(conf)
+
+      val writer = createWriter(appId, attemptId, testDirPath.toUri, conf, hadoopConf)
+      writer.start()
+
+      // The test for writing events into EventLogFileWriter is covered to its own test suite.
+      val dummyData = Seq("dummy1", "dummy2", "dummy3")
+      dummyData.foreach(writer.writeEvent(_, flushLogger = true))
+
+      val logPathIncompleted = getCurrentLogPath(writer.logPath, isCompleted = false)
+      val readerOpt = EventLogFileReader(fileSystem,
+        new Path(logPathIncompleted))
+      assertAppropriateReader(readerOpt)
+      val reader = readerOpt.get
+
+      verifyReader(reader, new Path(logPathIncompleted), codecShortName, isCompleted = false)
+
+      writer.stop()
+
+      val logPathCompleted = getCurrentLogPath(writer.logPath, isCompleted = true)
+      val readerOpt2 = EventLogFileReader(fileSystem, new Path(logPathCompleted))
+      assertAppropriateReader(readerOpt2)
+      val reader2 = readerOpt2.get
+
+      verifyReader(reader2, new Path(logPathCompleted), codecShortName, isCompleted = true)
+    }
+  }
+
+  protected def createWriter(
+      appId: String,
+      appAttemptId : Option[String],
+      logBaseDir: URI,
+      sparkConf: SparkConf,
+      hadoopConf: Configuration): EventLogFileWriter
+
+  protected def getCurrentLogPath(logPath: String, isCompleted: Boolean): String
+
+  protected def assertAppropriateReader(actualReader: Option[EventLogFileReader]): Unit
+
+  protected def verifyReader(
+      reader: EventLogFileReader,
+      logPath: Path,
+      compressionCodecShortName: Option[String],
+      isCompleted: Boolean): Unit
+}
+
+class SingleFileEventLogFileReaderSuite extends EventLogFileReadersSuite {
+  override protected def createWriter(
+      appId: String,
+      appAttemptId: Option[String],
+      logBaseDir: URI,
+      sparkConf: SparkConf,
+      hadoopConf: Configuration): EventLogFileWriter = {
+    new SingleEventLogFileWriter(appId, appAttemptId, logBaseDir, sparkConf, hadoopConf)
+  }
+
+  override protected def assertAppropriateReader(actualReader: Option[EventLogFileReader]):
Unit = {
+    assert(actualReader.isDefined, s"Expected an EventLogReader instance but was empty")
+    assert(actualReader.get.isInstanceOf[SingleFileEventLogFileReader],
+      s"Expected SingleFileEventLogReader but was ${actualReader.get.getClass}")
+  }
+
+  override protected def getCurrentLogPath(logPath: String, isCompleted: Boolean): String
= {
+    if (!isCompleted) logPath + EventLogFileWriter.IN_PROGRESS else logPath
+  }
+
+  override protected def verifyReader(
+      reader: EventLogFileReader,
+      logPath: Path,
+      compressionCodecShortName: Option[String],
+      isCompleted: Boolean): Unit = {
+    val stats = fileSystem.getFileStatus(logPath)
+
+    assert(stats.isFile)
+    assert(reader.rootPath === fileSystem.makeQualified(logPath))
+    assert(reader.lastIndex.isEmpty)
+    assert(reader.fileSizeForLastIndex === stats.getLen)
+    assert(reader.completed === isCompleted)
+    assert(reader.modificationTime === stats.getModificationTime)
+    assert(reader.listEventLogFiles.length === 1)
+    assert(reader.listEventLogFiles.map(_.getPath.toUri.getPath) ===
+      Seq(logPath.toUri.getPath))
+    assert(reader.compressionCodec === compressionCodecShortName)
+    assert(reader.totalSize === stats.getLen)
+
+    val underlyingStream = new ByteArrayOutputStream()
+    Utils.tryWithResource(new ZipOutputStream(underlyingStream)) { os =>
+      reader.zipEventLogFiles(os)
+    }
+
+    Utils.tryWithResource(new ZipInputStream(
+        new ByteArrayInputStream(underlyingStream.toByteArray))) { is =>
+
+      var entry = is.getNextEntry
+      assert(entry != null)
+      val actual = new String(ByteStreams.toByteArray(is), StandardCharsets.UTF_8)
+      val expected = Files.toString(new File(logPath.toString), StandardCharsets.UTF_8)
+      assert(actual === expected)
+      assert(is.getNextEntry === null)
+    }
+  }
+}
+
+class RollingEventLogFilesReaderSuite extends EventLogFileReadersSuite {
+  allCodecs.foreach { codecShortName =>
+    test(s"rolling event log files - codec $codecShortName") {
+      val appId = getUniqueApplicationId
+      val attemptId = None
+
+      val conf = getLoggingConf(testDirPath, codecShortName)
+      conf.set(EVENT_LOG_ENABLE_ROLLING, true)
+      conf.set(EVENT_LOG_ROLLED_EVENT_LOG_MAX_FILE_SIZE.key, "1k")
+
+      val writer = createWriter(appId, attemptId, testDirPath.toUri, conf,
+        SparkHadoopUtil.get.newConfiguration(conf))
+
+      writer.start()
+
+      val dummyString = "dummy"
+      val dummyStringBytesLen = dummyString.getBytes(StandardCharsets.UTF_8).length
+      val expectedLines = mutable.ArrayBuffer[String]()
+
+      // write log more than 2k (intended to roll over to 3 files)
+      val repeatCount = Math.floor((1024 * 2) / dummyStringBytesLen).toInt
+      (0 until repeatCount).foreach { _ =>
+        expectedLines.append(dummyString)
+        writer.writeEvent(dummyString, flushLogger = true)
+      }
+
+      val logPathIncompleted = getCurrentLogPath(writer.logPath, isCompleted = false)
+      val readerOpt = EventLogFileReader(fileSystem,
+        new Path(logPathIncompleted))
+      verifyReader(readerOpt.get, new Path(logPathIncompleted), codecShortName, isCompleted
= false)
+      assert(readerOpt.get.listEventLogFiles.length === 3)
+
+      writer.stop()
+
+      val logPathCompleted = getCurrentLogPath(writer.logPath, isCompleted = true)
+      val readerOpt2 = EventLogFileReader(fileSystem, new Path(logPathCompleted))
+      verifyReader(readerOpt2.get, new Path(logPathCompleted), codecShortName, isCompleted
= true)
+      assert(readerOpt.get.listEventLogFiles.length === 3)
+    }
+  }
+
+  override protected def createWriter(
+      appId: String,
+      appAttemptId: Option[String],
+      logBaseDir: URI,
+      sparkConf: SparkConf,
+      hadoopConf: Configuration): EventLogFileWriter = {
+    new RollingEventLogFilesWriter(appId, appAttemptId, logBaseDir, sparkConf, hadoopConf)
+  }
+
+  override protected def assertAppropriateReader(actualReader: Option[EventLogFileReader]):
Unit = {
+    assert(actualReader.isDefined, s"Expected an EventLogReader instance but was empty")
+    assert(actualReader.get.isInstanceOf[RollingEventLogFilesFileReader],
+      s"Expected RollingEventLogFilesReader but was ${actualReader.get.getClass}")
+  }
+
+  override protected def getCurrentLogPath(logPath: String, isCompleted: Boolean): String
= logPath
+
+  override protected def verifyReader(
+      reader: EventLogFileReader,
+      logPath: Path,
+      compressionCodecShortName: Option[String],
+      isCompleted: Boolean): Unit = {
+    import RollingEventLogFilesWriter._
+
+    val stats = fileSystem.getFileStatus(logPath)
+    assert(stats.isDirectory)
+
+    val statsInDir = fileSystem.listStatus(logPath)
 
 Review comment:
   status

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org


Mime
View raw message