siying commented on code in PR #50508: URL: https://github.com/apache/spark/pull/50508#discussion_r2034031136
########## sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/state/RocksDBCheckpointFailureInjectionSuite.scala: ########## @@ -0,0 +1,560 @@ +/* + * 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.sql.execution.streaming.state + +import java.io._ + +import scala.language.implicitConversions + +import org.apache.hadoop.conf.Configuration + +import org.apache.spark.{SparkConf, SparkException} +import org.apache.spark.sql.execution.streaming.MemoryStream +import org.apache.spark.sql.functions.count +import org.apache.spark.sql.internal.SQLConf +import org.apache.spark.sql.internal.SQLConf.STREAMING_CHECKPOINT_FILE_MANAGER_CLASS +import org.apache.spark.sql.streaming._ +import org.apache.spark.sql.streaming.OutputMode.Update +import org.apache.spark.sql.test.SharedSparkSession +import org.apache.spark.tags.SlowSQLTest +import org.apache.spark.util.Utils + + +@SlowSQLTest +/** + * Test suite to inject some failures in RocksDB checkpoint */ +class RocksDBCheckpointFailureInjectionSuite extends StreamTest + with SharedSparkSession { + override protected def sparkConf: SparkConf = { + super.sparkConf + .set(SQLConf.STATE_STORE_PROVIDER_CLASS, classOf[RocksDBStateStoreProvider].getName) + + } + + override def beforeEach(): Unit = { + super.beforeEach() + FailureInjectionFileSystem.failPreCopyFromLocalFileNameRegex = Seq.empty + FailureInjectionFileSystem.failureCreateAtomicRegex = Seq.empty + FailureInjectionFileSystem.shouldFailExist = false + } + + implicit def toArray(str: String): Array[Byte] = if (str != null) str.getBytes else null + + Seq(false, true).foreach { ifEnableStateStoreCheckpointIds => + test( + "Basic RocksDB SST File Upload Failure Handling" + + s"ifEnableStateStoreCheckpointIds = $ifEnableStateStoreCheckpointIds") { + val fmClass = "org.apache.spark.sql.execution.streaming.state." + + "FailureInjectionCheckpointFileManager" + val hadoopConf = new Configuration() + hadoopConf.set(STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key, fmClass) + withTempDir { remoteDir => + withSQLConf( + RocksDBConf.ROCKSDB_SQL_CONF_NAME_PREFIX + ".changelogCheckpointing.enabled" -> "false") { + val conf = RocksDBConf(StateStoreConf(SQLConf.get)) + withDB( + remoteDir.getAbsolutePath, + version = 0, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = ifEnableStateStoreCheckpointIds) { db => + db.put("version", "1.1") + val checkpointId1 = commitAndGetCheckpointId(db) + + FailureInjectionFileSystem.failPreCopyFromLocalFileNameRegex = Seq(".*sst") + db.put("version", "2.1") + var checkpointId2: Option[String] = None + intercept[IOException] { + checkpointId2 = commitAndGetCheckpointId(db) + } + + db.load(1, checkpointId1) + + FailureInjectionFileSystem.failPreCopyFromLocalFileNameRegex = Seq.empty + // When ifEnableStateStoreCheckpointIds is true, checkpointId is not available + // to load version 2. If we use None, it will throw a Runtime error. We probably + // should categorize this error. + if (!ifEnableStateStoreCheckpointIds) { + val ex = intercept[SparkException] { + db.load(2, checkpointId2) + } + checkError( + ex, + condition = "CANNOT_LOAD_STATE_STORE.CANNOT_READ_STREAMING_STATE_FILE", + parameters = Map( + "fileToRead" -> s"$remoteDir/2.changelog" Review Comment: Yes, but I think that's always the error we throw, even if changelog is disabled. ########## sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/state/FailureInjectionCheckpointFileManager.scala: ########## @@ -0,0 +1,254 @@ +/* + * 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.sql.execution.streaming.state + +import java.io._ +import java.net.URI + +import org.apache.hadoop.conf.Configuration +import org.apache.hadoop.fs._ +import org.apache.hadoop.fs.permission.FsPermission +import org.apache.hadoop.util.Progressable + +import org.apache.spark.internal.Logging +import org.apache.spark.sql.execution.streaming.CheckpointFileManager.{CancellableFSDataOutputStream, RenameBasedFSDataOutputStream} +import org.apache.spark.sql.execution.streaming.FileSystemBasedCheckpointFileManager + +/** + * A wrapper file output stream that will throw exception in close() and put the underlying + * stream to FailureInjectionFileSystem.delayedStreams + * @param stream stream to be wrapped + */ +class DelayCloseFSDataOutputStreamWrapper(stream: CancellableFSDataOutputStream) + extends CancellableFSDataOutputStream(stream.getWrappedStream) with Logging { + val originalStream: CancellableFSDataOutputStream = stream + + var closed: Boolean = false + + override def close(): Unit = { + if (!closed) { + closed = true + FailureInjectionFileSystem.delayedStreams = + FailureInjectionFileSystem.delayedStreams :+ originalStream + throw new IOException("Fake File Stream Close Failure") + } + } + + /** Cancel is not needed in unit tests */ + override def cancel(): Unit = {} +} + +/** + * A wrapper checkpoint file manager that might inject failures in some function calls. + * Used in unit tests to simulate failure scenarios. + * This can be put into SQLConf.STREAMING_CHECKPOINT_FILE_MANAGER_CLASS to provide failure + * injection behavior. + * + * @param path The path to the checkpoint directory, passing to the parent class + * @param hadoopConf hadoop conf that will be passed to the parent class + */ +class FailureInjectionCheckpointFileManager(path: Path, hadoopConf: Configuration) + extends FileSystemBasedCheckpointFileManager(path, hadoopConf) with Logging { + + override def createAtomic(path: Path, + overwriteIfPossible: Boolean): CancellableFSDataOutputStream = { + FailureInjectionFileSystem.failureCreateAtomicRegex.foreach { pattern => + if (path.toString.matches(pattern)) { + throw new IOException("Fake File System Create Atomic Failure") + } + } + + var shouldDelay = false + FailureInjectionFileSystem.createAtomicDelayCloseRegex.foreach { pattern => + if (path.toString.matches(pattern)) { + shouldDelay = true + } + } + val ret = new RenameBasedFSDataOutputStream(this, path, overwriteIfPossible) + if (shouldDelay) { + new DelayCloseFSDataOutputStreamWrapper(ret) + } else { + ret + } + } + + override def renameTempFile(srcPath: Path, dstPath: Path, overwriteIfPossible: Boolean): Unit = { + if (FailureInjectionFileSystem.allowOverwriteInRename || !fs.exists(dstPath)) { + super.renameTempFile(srcPath, dstPath, overwriteIfPossible) + } else { + logWarning(s"Skip renaming temp file $srcPath to $dstPath because it already exists.") + } + } + + override def list(path: Path, filter: PathFilter): Array[FileStatus] = { + super.list(path, filter) + } + + override def exists(path: Path): Boolean = { + if (FailureInjectionFileSystem.shouldFailExist) { + throw new IOException("Fake File Exists Failure") + } + super.exists(path) + } +} + +/** + * Contains a list of variables for failure ingestion conditions. + * These are singleton instances accessed by all instances of FailureInjectionCheckpointFileManager + * and FailureInjectionFileSystem. This allows a unit test to have a global control of failure + * and access to the delayed streams. + */ +object FailureInjectionFileSystem { + // File names matching this regex will cause the copyFromLocalFile to fail + var failPreCopyFromLocalFileNameRegex: Seq[String] = Seq.empty + // File names matching this regex will cause the createAtomic to fail and put the streams in + // `delayedStreams` + var createAtomicDelayCloseRegex: Seq[String] = Seq.empty + // File names matching this regex will cause the createAtomic() to fail + var failureCreateAtomicRegex: Seq[String] = Seq.empty + // If true, Exists() call will fail + var shouldFailExist: Boolean = false + // If true, simulate a case where rename() will not overwrite an existing file. + var allowOverwriteInRename: Boolean = true + + // List of streams that are delayed in close() based on `createAtomicDelayCloseRegex` + var delayedStreams: Seq[CancellableFSDataOutputStream] = Seq.empty +} + +/** + * A wrapper FileSystem that inject some failures. This class can used to replace the + * FileSystem in RocksDBFileManager. + * @param innerFs the FileSystem to be wrapped + */ +class FailureInjectionFileSystem(innerFs: FileSystem) extends FileSystem { + + override def getConf: Configuration = innerFs.getConf + + override def mkdirs(f: Path, permission: FsPermission): Boolean = innerFs.mkdirs(f, permission) + + override def rename(src: Path, dst: Path): Boolean = innerFs.rename(src, dst) + + override def getUri: URI = innerFs.getUri + + override def open(f: Path, bufferSize: Int): FSDataInputStream = innerFs.open(f, bufferSize) + + override def create( + f: Path, + permission: FsPermission, + overwrite: Boolean, + bufferSize: Int, + replication: Short, + blockSize: Long, + progress: Progressable): FSDataOutputStream = + innerFs.create(f, permission, overwrite, bufferSize, replication, blockSize, progress) + + override def append(f: Path, bufferSize: Int, progress: Progressable): FSDataOutputStream = + innerFs.append(f, bufferSize, progress) + + override def delete(f: Path, recursive: Boolean): Boolean = innerFs.delete(f, recursive) + + override def listStatus(f: Path): Array[FileStatus] = innerFs.listStatus(f) + + override def setWorkingDirectory(new_dir: Path): Unit = innerFs.setWorkingDirectory(new_dir) + + override def getWorkingDirectory: Path = innerFs.getWorkingDirectory + + override def getFileStatus(f: Path): FileStatus = innerFs.getFileStatus(f) + + override def copyFromLocalFile(src: Path, dst: Path): Unit = { + FailureInjectionFileSystem.failPreCopyFromLocalFileNameRegex.foreach { pattern => + if (src.toString.matches(pattern)) { + throw new IOException(s"Injected failure due to source path matching pattern: $pattern") + } + } + + innerFs.copyFromLocalFile(src, dst) + } +} + +/** + * A wrapper RocksDB State Store Provider that replaces FileSystem used in RocksDBFileManager + * to FailureInjectionFileSystem. + */ +class FailureInjectionRocksDBStateStoreProvider extends RocksDBStateStoreProvider { + override def createRocksDB( + dfsRootDir: String, + conf: RocksDBConf, + localRootDir: File, + hadoopConf: Configuration, + loggingId: String, + useColumnFamilies: Boolean, + enableStateStoreCheckpointIds: Boolean, + partitionId: Int): RocksDB = { + FailureInjectionRocksDBStateStoreProvider.createRocksDBWithFaultInjection( + dfsRootDir, + conf, + localRootDir, + hadoopConf, + loggingId, + useColumnFamilies, + enableStateStoreCheckpointIds, + partitionId) + } +} + +object FailureInjectionRocksDBStateStoreProvider { + /** + * RocksDBFieManager is created by RocksDB class where it creates a default FileSystem. + * We make RocksDB create a RocksDBFileManager that uses a different FileSystem here. + * */ + def createRocksDBWithFaultInjection( Review Comment: This is actually used twice. One in FailureInjectionRocksDBStateStoreProvider.createRocksDB() and one in withDB[T]() ########## sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/state/RocksDBCheckpointFailureInjectionSuite.scala: ########## @@ -0,0 +1,560 @@ +/* + * 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.sql.execution.streaming.state + +import java.io._ + +import scala.language.implicitConversions + +import org.apache.hadoop.conf.Configuration + +import org.apache.spark.{SparkConf, SparkException} +import org.apache.spark.sql.execution.streaming.MemoryStream +import org.apache.spark.sql.functions.count +import org.apache.spark.sql.internal.SQLConf +import org.apache.spark.sql.internal.SQLConf.STREAMING_CHECKPOINT_FILE_MANAGER_CLASS +import org.apache.spark.sql.streaming._ +import org.apache.spark.sql.streaming.OutputMode.Update +import org.apache.spark.sql.test.SharedSparkSession +import org.apache.spark.tags.SlowSQLTest +import org.apache.spark.util.Utils + + +@SlowSQLTest +/** + * Test suite to inject some failures in RocksDB checkpoint */ +class RocksDBCheckpointFailureInjectionSuite extends StreamTest + with SharedSparkSession { + override protected def sparkConf: SparkConf = { + super.sparkConf + .set(SQLConf.STATE_STORE_PROVIDER_CLASS, classOf[RocksDBStateStoreProvider].getName) + + } + + override def beforeEach(): Unit = { + super.beforeEach() + FailureInjectionFileSystem.failPreCopyFromLocalFileNameRegex = Seq.empty + FailureInjectionFileSystem.failureCreateAtomicRegex = Seq.empty + FailureInjectionFileSystem.shouldFailExist = false + } + + implicit def toArray(str: String): Array[Byte] = if (str != null) str.getBytes else null + + Seq(false, true).foreach { ifEnableStateStoreCheckpointIds => + test( + "Basic RocksDB SST File Upload Failure Handling" + + s"ifEnableStateStoreCheckpointIds = $ifEnableStateStoreCheckpointIds") { + val fmClass = "org.apache.spark.sql.execution.streaming.state." + + "FailureInjectionCheckpointFileManager" + val hadoopConf = new Configuration() + hadoopConf.set(STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key, fmClass) + withTempDir { remoteDir => + withSQLConf( + RocksDBConf.ROCKSDB_SQL_CONF_NAME_PREFIX + ".changelogCheckpointing.enabled" -> "false") { + val conf = RocksDBConf(StateStoreConf(SQLConf.get)) + withDB( + remoteDir.getAbsolutePath, + version = 0, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = ifEnableStateStoreCheckpointIds) { db => + db.put("version", "1.1") + val checkpointId1 = commitAndGetCheckpointId(db) + + FailureInjectionFileSystem.failPreCopyFromLocalFileNameRegex = Seq(".*sst") + db.put("version", "2.1") + var checkpointId2: Option[String] = None + intercept[IOException] { + checkpointId2 = commitAndGetCheckpointId(db) + } + + db.load(1, checkpointId1) + + FailureInjectionFileSystem.failPreCopyFromLocalFileNameRegex = Seq.empty + // When ifEnableStateStoreCheckpointIds is true, checkpointId is not available + // to load version 2. If we use None, it will throw a Runtime error. We probably + // should categorize this error. + if (!ifEnableStateStoreCheckpointIds) { + val ex = intercept[SparkException] { + db.load(2, checkpointId2) + } + checkError( + ex, + condition = "CANNOT_LOAD_STATE_STORE.CANNOT_READ_STREAMING_STATE_FILE", + parameters = Map( + "fileToRead" -> s"$remoteDir/2.changelog" + ) + ) + } + + db.load(0) + FailureInjectionFileSystem.shouldFailExist = true + intercept[IOException] { + db.load(1, checkpointId1) + } + } + } + } + } + } + + Seq(false, true).foreach { ifEnableStateStoreCheckpointIds => + test( + "Basic RocksDB Zip File Upload Failure Handling " + + s"ifEnableStateStoreCheckpointIds = $ifEnableStateStoreCheckpointIds") { + val fmClass = "org.apache.spark.sql.execution.streaming.state." + + "FailureInjectionCheckpointFileManager" + val hadoopConf = new Configuration() + hadoopConf.set(STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key, fmClass) + withTempDir { remoteDir => + withSQLConf( + RocksDBConf.ROCKSDB_SQL_CONF_NAME_PREFIX + ".changelogCheckpointing.enabled" -> "false") { + val conf = RocksDBConf(StateStoreConf(SQLConf.get)) + withDB( + remoteDir.getAbsolutePath, + version = 0, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = ifEnableStateStoreCheckpointIds) { db => + db.put("version", "1.1") + val checkpointId1 = commitAndGetCheckpointId(db) + + db.load(1, checkpointId1) + FailureInjectionFileSystem.failureCreateAtomicRegex = Seq(".*zip") + db.put("version", "2.1") + var checkpointId2: Option[String] = None + intercept[IOException] { + checkpointId2 = commitAndGetCheckpointId(db) + } + + db.load(1, checkpointId1) + + FailureInjectionFileSystem.failureCreateAtomicRegex = Seq.empty + + // When ifEnableStateStoreCheckpointIds is true, checkpointId is not available + // to load version 2. If we use None, it will throw a Runtime error. We probably + // should categorize this error. + if (!ifEnableStateStoreCheckpointIds) { + val ex = intercept[SparkException] { + db.load(2, checkpointId2) + } + checkError( + ex, + condition = "CANNOT_LOAD_STATE_STORE.CANNOT_READ_STREAMING_STATE_FILE", + parameters = Map( + "fileToRead" -> s"$remoteDir/2.changelog" + ) + ) + } + + db.load(0) + FailureInjectionFileSystem.shouldFailExist = true + intercept[IOException] { + db.load(1, checkpointId1) + } + } + } + } + } + } + + + /** + * This test is to simulate the case where a previous task had connectivity problem that couldn't + * be killed or write zip file. Only after the later one is successfully committed, it comes back + * and write the zip file. + */ + Seq(true, false).foreach { ifEnableStateStoreCheckpointIds => + test( + "Zip File Overwritten by Previous Task Checkpoint " + + s"ifEnableStateStoreCheckpointIds = $ifEnableStateStoreCheckpointIds") { + val fmClass = "org.apache.spark.sql.execution.streaming.state." + + "FailureInjectionCheckpointFileManager" + val hadoopConf = new Configuration() + hadoopConf.set(STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key, fmClass) + withTempDir { remoteDir => + withSQLConf( + RocksDBConf.ROCKSDB_SQL_CONF_NAME_PREFIX + ".changelogCheckpointing.enabled" -> "false") { + val conf = RocksDBConf(StateStoreConf(SQLConf.get)) + + var checkpointId2: Option[String] = None + withDB( + remoteDir.getAbsolutePath, + version = 0, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = ifEnableStateStoreCheckpointIds) { db => + db.put("version", "1.1") + val checkpointId1 = commitAndGetCheckpointId(db) + + db.load(1, checkpointId1) + FailureInjectionFileSystem.createAtomicDelayCloseRegex = Seq(".*zip") + db.put("version", "2.1") + + intercept[IOException] { + commitAndGetCheckpointId(db) + } + + FailureInjectionFileSystem.createAtomicDelayCloseRegex = Seq.empty + + db.load(1, checkpointId1) + + db.put("version", "2.2") + checkpointId2 = commitAndGetCheckpointId(db) + + assert(FailureInjectionFileSystem.delayedStreams.nonEmpty) + FailureInjectionFileSystem.delayedStreams.foreach(_.close()) + } + withDB( + remoteDir.getAbsolutePath, + version = 2, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = ifEnableStateStoreCheckpointIds, + checkpointId = checkpointId2) { db => + if (ifEnableStateStoreCheckpointIds) { + assert(new String(db.get("version"), "UTF-8") == "2.2") + } else { + // Assuming previous 2.zip overwrites, we should see the previous value. + // This validation isn't necessary here but we just would like to make sure + // FailureInjectionCheckpointFileManager has correct behavior -- allows zip files + // to be delayed to be written, so that the test for + // ifEnableStateStoreCheckpointIds = trrue is valid. + assert(new String(db.get("version"), "UTF-8") == "2.1") + } + } + } + } + } + } + + /** + * This test is to simulate the case where a previous task had connectivity problem that couldn't + * be killed or write changelog file. Only after the later one is successfully committed, it comes + * back and write the changelog file. + * */ + Seq(false, true).foreach { ifEnableStateStoreCheckpointIds => + test( + "Changelog File Overwritten by Previous Task With Changelog Checkpoint " + + s"ifEnableStateStoreCheckpointIds = $ifEnableStateStoreCheckpointIds") { + val fmClass = "org.apache.spark.sql.execution.streaming.state." + + "FailureInjectionCheckpointFileManager" + val hadoopConf = new Configuration() + hadoopConf.set(STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key, fmClass) + withTempDir { remoteDir => + withSQLConf( + RocksDBConf.ROCKSDB_SQL_CONF_NAME_PREFIX + ".changelogCheckpointing.enabled" -> "true", + SQLConf.STATE_STORE_MIN_DELTAS_FOR_SNAPSHOT.key -> "5") { + val conf = RocksDBConf(StateStoreConf(SQLConf.get)) + + var checkpointId2: Option[String] = None + withDB( + remoteDir.getAbsolutePath, + version = 0, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = ifEnableStateStoreCheckpointIds) { db => + db.put("version", "1.1") + val checkpointId1 = commitAndGetCheckpointId(db) + + FailureInjectionFileSystem.createAtomicDelayCloseRegex = Seq(".*/2.*changelog") + + db.load(1, checkpointId1) + db.put("version", "2.1") + intercept[IOException] { + commitAndGetCheckpointId(db) + } + + FailureInjectionFileSystem.createAtomicDelayCloseRegex = Seq.empty + + db.load(1, checkpointId1) + + db.put("version", "2.2") + checkpointId2 = commitAndGetCheckpointId(db) + + assert(FailureInjectionFileSystem.delayedStreams.nonEmpty) + FailureInjectionFileSystem.delayedStreams.foreach(_.close()) + + db.load(1, checkpointId1) + db.load(2, checkpointId2) + } + + withDB( + remoteDir.getAbsolutePath, + version = 2, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = ifEnableStateStoreCheckpointIds, + checkpointId = checkpointId2) { db => + if (ifEnableStateStoreCheckpointIds) { + assert(new String(db.get("version"), "UTF-8") == "2.2") + } else { + // This check is not necessary. But we would like to validate the behavior of + // FailureInjectionFileSystem to ensure the ifEnableStateStoreCheckpointIds = true + // case is valid. + assert(new String(db.get("version"), "UTF-8") == "2.1") + } + } + } + } + } + } + + /** + * This test is to simulate the case where + * 1. There is a snapshot checkpoint scheduled + * 2. The batch eventually failed + * 3. Query is retried and moved forward + * 4. The snapshot checkpoint succeeded + * In checkpoint V2, this snapshot shouldn't take effect. Otherwise, it will break the strong + * consistency guaranteed by V2. + */ + test("Delay Snapshot V2") { + val fmClass = "org.apache.spark.sql.execution.streaming.state." + + "FailureInjectionCheckpointFileManager" + val hadoopConf = new Configuration() + hadoopConf.set(STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key, fmClass) + withTempDir { remoteDir => + withSQLConf( + RocksDBConf.ROCKSDB_SQL_CONF_NAME_PREFIX + ".changelogCheckpointing.enabled" -> "true", + SQLConf.STATE_STORE_MIN_DELTAS_FOR_SNAPSHOT.key -> "2") { + val conf = RocksDBConf(StateStoreConf(SQLConf.get)) + var checkpointId3: Option[String] = None + withDB( + remoteDir.getAbsolutePath, + version = 0, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = true) { db => + db.put("version", "1.1") + val checkpointId1 = commitAndGetCheckpointId(db) + + withDB( + remoteDir.getAbsolutePath, + version = 1, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = true, + checkpointId = checkpointId1) { db2 => + db2.put("version", "2.1") + db2.commit() + + db.load(1, checkpointId1) + db.put("version", "2.2") + val checkpointId2 = commitAndGetCheckpointId(db) + + db.load(2, checkpointId2) + db.put("foo", "bar") + checkpointId3 = commitAndGetCheckpointId(db) + + db2.doMaintenance() + } + } + withDB( + remoteDir.getAbsolutePath, + version = 3, + conf = conf, + hadoopConf = hadoopConf, + enableStateStoreCheckpointIds = true, + checkpointId = checkpointId3) { db => + assert(new String(db.get("version"), "UTF-8") == "2.2") + assert(new String(db.get("foo"), "UTF-8") == "bar") + } + } + } + } + + import testImplicits._ + + /** + * An integrated test where a previous changelog from a failed batch come back and finish + * writing. In checkpoint V2, this changelog should be ignored. + * Test it with both file renaming overwrite and not renaming overwrite. + */ + Seq(false, true).foreach { ifAllowRenameOverwrite => + test(s"Job failure with changelog shows up ifAllowRenameOverwrite = $ifAllowRenameOverwrite") { + val fmClass = "org.apache.spark.sql.execution.streaming.state." + + "FailureInjectionCheckpointFileManager" + val hadoopConf = new Configuration() + hadoopConf.set(STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key, fmClass) + val rocksdbChangelogCheckpointingConfKey = + RocksDBConf.ROCKSDB_SQL_CONF_NAME_PREFIX + ".changelogCheckpointing.enabled" + FailureInjectionFileSystem.allowOverwriteInRename = ifAllowRenameOverwrite + withTempDir { checkpointDir => + withSQLConf( + rocksdbChangelogCheckpointingConfKey -> "true", + SQLConf.STATE_STORE_MIN_DELTAS_FOR_SNAPSHOT.key -> "2") { + val inputData = MemoryStream[Int] + val aggregated = + inputData.toDF() + .groupBy($"value") + .agg(count("*")) + .as[(Int, Long)] + + FailureInjectionFileSystem.createAtomicDelayCloseRegex = Seq(".*/2_.*changelog") + + testStream(aggregated, Update)( + StartStream(checkpointLocation = checkpointDir.getAbsolutePath, + additionalConfs = Map( + rocksdbChangelogCheckpointingConfKey -> "true", + SQLConf.STATE_STORE_CHECKPOINT_FORMAT_VERSION.key -> "2", + STREAMING_CHECKPOINT_FILE_MANAGER_CLASS.parent.key -> fmClass)), Review Comment: I copied it from other test suites. tests such as `CheckpointFileManagerSuite`, `RocksDBSuite` and other several tests are all doing this. -- This is an automated message from the Apache Git Service. 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