Repository: spark Updated Branches: refs/heads/master 71afeeea4 -> 8e223ea67
[SPARK-16550][SPARK-17042][CORE] Certain classes fail to deserialize in block manager replication ## What changes were proposed in this pull request? This is a straightforward clone of JoshRosen 's original patch. I have follow-up changes to fix block replication for repl-defined classes as well, but those appear to be flaking tests so I'm going to leave that for SPARK-17042 ## How was this patch tested? End-to-end test in ReplSuite (also more tests in DistributedSuite from the original patch). Author: Eric Liang <e...@databricks.com> Closes #14311 from ericl/spark-16550. Project: http://git-wip-us.apache.org/repos/asf/spark/repo Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/8e223ea6 Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/8e223ea6 Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/8e223ea6 Branch: refs/heads/master Commit: 8e223ea67acf5aa730ccf688802f17f6fc10907c Parents: 71afeee Author: Eric Liang <e...@databricks.com> Authored: Mon Aug 22 16:32:14 2016 -0700 Committer: Reynold Xin <r...@databricks.com> Committed: Mon Aug 22 16:32:14 2016 -0700 ---------------------------------------------------------------------- .../spark/serializer/SerializerManager.scala | 14 +++- .../org/apache/spark/storage/BlockManager.scala | 13 +++- .../org/apache/spark/DistributedSuite.scala | 77 ++++++-------------- .../scala/org/apache/spark/repl/ReplSuite.scala | 14 ++++ 4 files changed, 60 insertions(+), 58 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/spark/blob/8e223ea6/core/src/main/scala/org/apache/spark/serializer/SerializerManager.scala ---------------------------------------------------------------------- diff --git a/core/src/main/scala/org/apache/spark/serializer/SerializerManager.scala b/core/src/main/scala/org/apache/spark/serializer/SerializerManager.scala index 9dc274c..07caadb 100644 --- a/core/src/main/scala/org/apache/spark/serializer/SerializerManager.scala +++ b/core/src/main/scala/org/apache/spark/serializer/SerializerManager.scala @@ -68,7 +68,7 @@ private[spark] class SerializerManager(defaultSerializer: Serializer, conf: Spar * loaded yet. */ private lazy val compressionCodec: CompressionCodec = CompressionCodec.createCodec(conf) - private def canUseKryo(ct: ClassTag[_]): Boolean = { + def canUseKryo(ct: ClassTag[_]): Boolean = { primitiveAndPrimitiveArrayClassTags.contains(ct) || ct == stringClassTag } @@ -128,8 +128,18 @@ private[spark] class SerializerManager(defaultSerializer: Serializer, conf: Spar /** Serializes into a chunked byte buffer. */ def dataSerialize[T: ClassTag](blockId: BlockId, values: Iterator[T]): ChunkedByteBuffer = { + dataSerializeWithExplicitClassTag(blockId, values, implicitly[ClassTag[T]]) + } + + /** Serializes into a chunked byte buffer. */ + def dataSerializeWithExplicitClassTag( + blockId: BlockId, + values: Iterator[_], + classTag: ClassTag[_]): ChunkedByteBuffer = { val bbos = new ChunkedByteBufferOutputStream(1024 * 1024 * 4, ByteBuffer.allocate) - dataSerializeStream(blockId, bbos, values) + val byteStream = new BufferedOutputStream(bbos) + val ser = getSerializer(classTag).newInstance() + ser.serializeStream(wrapForCompression(blockId, byteStream)).writeAll(values).close() bbos.toChunkedByteBuffer } http://git-wip-us.apache.org/repos/asf/spark/blob/8e223ea6/core/src/main/scala/org/apache/spark/storage/BlockManager.scala ---------------------------------------------------------------------- diff --git a/core/src/main/scala/org/apache/spark/storage/BlockManager.scala b/core/src/main/scala/org/apache/spark/storage/BlockManager.scala index 015e71d..fe84652 100644 --- a/core/src/main/scala/org/apache/spark/storage/BlockManager.scala +++ b/core/src/main/scala/org/apache/spark/storage/BlockManager.scala @@ -498,7 +498,8 @@ private[spark] class BlockManager( diskStore.getBytes(blockId) } else if (level.useMemory && memoryStore.contains(blockId)) { // The block was not found on disk, so serialize an in-memory copy: - serializerManager.dataSerialize(blockId, memoryStore.getValues(blockId).get) + serializerManager.dataSerializeWithExplicitClassTag( + blockId, memoryStore.getValues(blockId).get, info.classTag) } else { handleLocalReadFailure(blockId) } @@ -973,8 +974,16 @@ private[spark] class BlockManager( if (level.replication > 1) { val remoteStartTime = System.currentTimeMillis val bytesToReplicate = doGetLocalBytes(blockId, info) + // [SPARK-16550] Erase the typed classTag when using default serialization, since + // NettyBlockRpcServer crashes when deserializing repl-defined classes. + // TODO(ekl) remove this once the classloader issue on the remote end is fixed. + val remoteClassTag = if (!serializerManager.canUseKryo(classTag)) { + scala.reflect.classTag[Any] + } else { + classTag + } try { - replicate(blockId, bytesToReplicate, level, classTag) + replicate(blockId, bytesToReplicate, level, remoteClassTag) } finally { bytesToReplicate.dispose() } http://git-wip-us.apache.org/repos/asf/spark/blob/8e223ea6/core/src/test/scala/org/apache/spark/DistributedSuite.scala ---------------------------------------------------------------------- diff --git a/core/src/test/scala/org/apache/spark/DistributedSuite.scala b/core/src/test/scala/org/apache/spark/DistributedSuite.scala index 6beae84..4ee0e00 100644 --- a/core/src/test/scala/org/apache/spark/DistributedSuite.scala +++ b/core/src/test/scala/org/apache/spark/DistributedSuite.scala @@ -149,61 +149,16 @@ class DistributedSuite extends SparkFunSuite with Matchers with LocalSparkContex sc.parallelize(1 to 10).count() } - test("caching") { + private def testCaching(storageLevel: StorageLevel): Unit = { sc = new SparkContext(clusterUrl, "test") - val data = sc.parallelize(1 to 1000, 10).cache() - assert(data.count() === 1000) - assert(data.count() === 1000) - assert(data.count() === 1000) - } - - test("caching on disk") { - sc = new SparkContext(clusterUrl, "test") - val data = sc.parallelize(1 to 1000, 10).persist(StorageLevel.DISK_ONLY) - assert(data.count() === 1000) - assert(data.count() === 1000) - assert(data.count() === 1000) - } - - test("caching in memory, replicated") { - sc = new SparkContext(clusterUrl, "test") - val data = sc.parallelize(1 to 1000, 10).persist(StorageLevel.MEMORY_ONLY_2) - assert(data.count() === 1000) - assert(data.count() === 1000) - assert(data.count() === 1000) - } - - test("caching in memory, serialized, replicated") { - sc = new SparkContext(clusterUrl, "test") - val data = sc.parallelize(1 to 1000, 10).persist(StorageLevel.MEMORY_ONLY_SER_2) - assert(data.count() === 1000) - assert(data.count() === 1000) - assert(data.count() === 1000) - } - - test("caching on disk, replicated") { - sc = new SparkContext(clusterUrl, "test") - val data = sc.parallelize(1 to 1000, 10).persist(StorageLevel.DISK_ONLY_2) - assert(data.count() === 1000) - assert(data.count() === 1000) - assert(data.count() === 1000) - } - - test("caching in memory and disk, replicated") { - sc = new SparkContext(clusterUrl, "test") - val data = sc.parallelize(1 to 1000, 10).persist(StorageLevel.MEMORY_AND_DISK_2) - assert(data.count() === 1000) - assert(data.count() === 1000) - assert(data.count() === 1000) - } - - test("caching in memory and disk, serialized, replicated") { - sc = new SparkContext(clusterUrl, "test") - val data = sc.parallelize(1 to 1000, 10).persist(StorageLevel.MEMORY_AND_DISK_SER_2) - - assert(data.count() === 1000) - assert(data.count() === 1000) - assert(data.count() === 1000) + sc.jobProgressListener.waitUntilExecutorsUp(2, 30000) + val data = sc.parallelize(1 to 1000, 10) + val cachedData = data.persist(storageLevel) + assert(cachedData.count === 1000) + assert(sc.getExecutorStorageStatus.map(_.rddBlocksById(cachedData.id).size).sum === + storageLevel.replication * data.getNumPartitions) + assert(cachedData.count === 1000) + assert(cachedData.count === 1000) // Get all the locations of the first partition and try to fetch the partitions // from those locations. @@ -221,6 +176,20 @@ class DistributedSuite extends SparkFunSuite with Matchers with LocalSparkContex } } + Seq( + "caching" -> StorageLevel.MEMORY_ONLY, + "caching on disk" -> StorageLevel.DISK_ONLY, + "caching in memory, replicated" -> StorageLevel.MEMORY_ONLY_2, + "caching in memory, serialized, replicated" -> StorageLevel.MEMORY_ONLY_SER_2, + "caching on disk, replicated" -> StorageLevel.DISK_ONLY_2, + "caching in memory and disk, replicated" -> StorageLevel.MEMORY_AND_DISK_2, + "caching in memory and disk, serialized, replicated" -> StorageLevel.MEMORY_AND_DISK_SER_2 + ).foreach { case (testName, storageLevel) => + test(testName) { + testCaching(storageLevel) + } + } + test("compute without caching when no partitions fit in memory") { val size = 10000 val conf = new SparkConf() http://git-wip-us.apache.org/repos/asf/spark/blob/8e223ea6/repl/scala-2.11/src/test/scala/org/apache/spark/repl/ReplSuite.scala ---------------------------------------------------------------------- diff --git a/repl/scala-2.11/src/test/scala/org/apache/spark/repl/ReplSuite.scala b/repl/scala-2.11/src/test/scala/org/apache/spark/repl/ReplSuite.scala index c10db94..06b09f3 100644 --- a/repl/scala-2.11/src/test/scala/org/apache/spark/repl/ReplSuite.scala +++ b/repl/scala-2.11/src/test/scala/org/apache/spark/repl/ReplSuite.scala @@ -396,6 +396,20 @@ class ReplSuite extends SparkFunSuite { assertContains("ret: Array[(Int, Iterable[Foo])] = Array((1,", output) } + test("replicating blocks of object with class defined in repl") { + val output = runInterpreter("local-cluster[2,1,1024]", + """ + |import org.apache.spark.storage.StorageLevel._ + |case class Foo(i: Int) + |val ret = sc.parallelize((1 to 100).map(Foo), 10).persist(MEMORY_ONLY_2) + |ret.count() + |sc.getExecutorStorageStatus.map(s => s.rddBlocksById(ret.id).size).sum + """.stripMargin) + assertDoesNotContain("error:", output) + assertDoesNotContain("Exception", output) + assertContains(": Int = 20", output) + } + test("line wrapper only initialized once when used as encoder outer scope") { val output = runInterpreter("local", """ --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@spark.apache.org For additional commands, e-mail: commits-h...@spark.apache.org
