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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.storage
import java.nio.ByteBuffer
import akka.actor._
import org.scalatest.BeforeAndAfter
import org.scalatest.FunSuite
import org.scalatest.PrivateMethodTester
import org.scalatest.concurrent.Eventually._
import org.scalatest.concurrent.Timeouts._
import org.scalatest.matchers.ShouldMatchers._
import org.scalatest.time.SpanSugar._
import org.apache.spark.{SecurityManager, SparkConf}
import org.apache.spark.scheduler.LiveListenerBus
import org.apache.spark.serializer.{JavaSerializer, KryoSerializer}
import org.apache.spark.util.{AkkaUtils, ByteBufferInputStream, SizeEstimator, Utils}
class BlockManagerSuite extends FunSuite with BeforeAndAfter with PrivateMethodTester {
private val conf = new SparkConf(false)
var store: BlockManager = null
var store2: BlockManager = null
var actorSystem: ActorSystem = null
var master: BlockManagerMaster = null
var oldArch: String = null
conf.set("spark.authenticate", "false")
val securityMgr = new SecurityManager(conf)
// Reuse a serializer across tests to avoid creating a new thread-local buffer on each test
conf.set("spark.kryoserializer.buffer.mb", "1")
val serializer = new KryoSerializer(conf)
// Implicitly convert strings to BlockIds for test clarity.
implicit def StringToBlockId(value: String): BlockId = new TestBlockId(value)
def rdd(rddId: Int, splitId: Int) = RDDBlockId(rddId, splitId)
before {
val (actorSystem, boundPort) = AkkaUtils.createActorSystem("test", "localhost", 0, conf = conf,
securityManager = securityMgr)
this.actorSystem = actorSystem
conf.set("spark.driver.port", boundPort.toString)
master = new BlockManagerMaster(
actorSystem.actorOf(Props(new BlockManagerMasterActor(true, conf, new LiveListenerBus))),
conf)
// Set the arch to 64-bit and compressedOops to true to get a deterministic test-case
oldArch = System.setProperty("os.arch", "amd64")
conf.set("os.arch", "amd64")
conf.set("spark.test.useCompressedOops", "true")
conf.set("spark.storage.disableBlockManagerHeartBeat", "true")
val initialize = PrivateMethod[Unit]('initialize)
SizeEstimator invokePrivate initialize()
}
after {
System.clearProperty("spark.driver.port")
if (store != null) {
store.stop()
store = null
}
if (store2 != null) {
store2.stop()
store2 = null
}
actorSystem.shutdown()
actorSystem.awaitTermination()
actorSystem = null
master = null
if (oldArch != null) {
conf.set("os.arch", oldArch)
} else {
System.clearProperty("os.arch")
}
System.clearProperty("spark.test.useCompressedOops")
}
test("StorageLevel object caching") {
val level1 = StorageLevel(false, false, false, false, 3)
val level2 = StorageLevel(false, false, false, false, 3) // this should return the same object as level1
val level3 = StorageLevel(false, false, false, false, 2) // this should return a different object
assert(level2 === level1, "level2 is not same as level1")
assert(level2.eq(level1), "level2 is not the same object as level1")
assert(level3 != level1, "level3 is same as level1")
val bytes1 = Utils.serialize(level1)
val level1_ = Utils.deserialize[StorageLevel](bytes1)
val bytes2 = Utils.serialize(level2)
val level2_ = Utils.deserialize[StorageLevel](bytes2)
assert(level1_ === level1, "Deserialized level1 not same as original level1")
assert(level1_.eq(level1), "Deserialized level1 not the same object as original level2")
assert(level2_ === level2, "Deserialized level2 not same as original level2")
assert(level2_.eq(level1), "Deserialized level2 not the same object as original level1")
}
test("BlockManagerId object caching") {
val id1 = BlockManagerId("e1", "XXX", 1, 0)
val id2 = BlockManagerId("e1", "XXX", 1, 0) // this should return the same object as id1
val id3 = BlockManagerId("e1", "XXX", 2, 0) // this should return a different object
assert(id2 === id1, "id2 is not same as id1")
assert(id2.eq(id1), "id2 is not the same object as id1")
assert(id3 != id1, "id3 is same as id1")
val bytes1 = Utils.serialize(id1)
val id1_ = Utils.deserialize[BlockManagerId](bytes1)
val bytes2 = Utils.serialize(id2)
val id2_ = Utils.deserialize[BlockManagerId](bytes2)
assert(id1_ === id1, "Deserialized id1 is not same as original id1")
assert(id1_.eq(id1), "Deserialized id1 is not the same object as original id1")
assert(id2_ === id2, "Deserialized id2 is not same as original id2")
assert(id2_.eq(id1), "Deserialized id2 is not the same object as original id1")
}
test("master + 1 manager interaction") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 2000, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
// Putting a1, a2 and a3 in memory and telling master only about a1 and a2
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY)
store.putSingle("a2", a2, StorageLevel.MEMORY_ONLY)
store.putSingle("a3", a3, StorageLevel.MEMORY_ONLY, tellMaster = false)
// Checking whether blocks are in memory
assert(store.getSingle("a1").isDefined, "a1 was not in store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3").isDefined, "a3 was not in store")
// Checking whether master knows about the blocks or not
assert(master.getLocations("a1").size > 0, "master was not told about a1")
assert(master.getLocations("a2").size > 0, "master was not told about a2")
assert(master.getLocations("a3").size === 0, "master was told about a3")
// Drop a1 and a2 from memory; this should be reported back to the master
store.dropFromMemory("a1", null)
store.dropFromMemory("a2", null)
assert(store.getSingle("a1") === None, "a1 not removed from store")
assert(store.getSingle("a2") === None, "a2 not removed from store")
assert(master.getLocations("a1").size === 0, "master did not remove a1")
assert(master.getLocations("a2").size === 0, "master did not remove a2")
}
test("master + 2 managers interaction") {
store = new BlockManager("exec1", actorSystem, master, serializer, 2000, conf, securityMgr)
store2 = new BlockManager("exec2", actorSystem, master, new KryoSerializer(conf), 2000, conf,
securityMgr)
val peers = master.getPeers(store.blockManagerId, 1)
assert(peers.size === 1, "master did not return the other manager as a peer")
assert(peers.head === store2.blockManagerId, "peer returned by master is not the other manager")
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY_2)
store2.putSingle("a2", a2, StorageLevel.MEMORY_ONLY_2)
assert(master.getLocations("a1").size === 2, "master did not report 2 locations for a1")
assert(master.getLocations("a2").size === 2, "master did not report 2 locations for a2")
}
test("removing block") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 2000, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
// Putting a1, a2 and a3 in memory and telling master only about a1 and a2
store.putSingle("a1-to-remove", a1, StorageLevel.MEMORY_ONLY)
store.putSingle("a2-to-remove", a2, StorageLevel.MEMORY_ONLY)
store.putSingle("a3-to-remove", a3, StorageLevel.MEMORY_ONLY, tellMaster = false)
// Checking whether blocks are in memory and memory size
val memStatus = master.getMemoryStatus.head._2
assert(memStatus._1 == 2000L, "total memory " + memStatus._1 + " should equal 2000")
assert(memStatus._2 <= 1200L, "remaining memory " + memStatus._2 + " should <= 1200")
assert(store.getSingle("a1-to-remove").isDefined, "a1 was not in store")
assert(store.getSingle("a2-to-remove").isDefined, "a2 was not in store")
assert(store.getSingle("a3-to-remove").isDefined, "a3 was not in store")
// Checking whether master knows about the blocks or not
assert(master.getLocations("a1-to-remove").size > 0, "master was not told about a1")
assert(master.getLocations("a2-to-remove").size > 0, "master was not told about a2")
assert(master.getLocations("a3-to-remove").size === 0, "master was told about a3")
// Remove a1 and a2 and a3. Should be no-op for a3.
master.removeBlock("a1-to-remove")
master.removeBlock("a2-to-remove")
master.removeBlock("a3-to-remove")
eventually(timeout(1000 milliseconds), interval(10 milliseconds)) {
store.getSingle("a1-to-remove") should be (None)
master.getLocations("a1-to-remove") should have size 0
}
eventually(timeout(1000 milliseconds), interval(10 milliseconds)) {
store.getSingle("a2-to-remove") should be (None)
master.getLocations("a2-to-remove") should have size 0
}
eventually(timeout(1000 milliseconds), interval(10 milliseconds)) {
store.getSingle("a3-to-remove") should not be (None)
master.getLocations("a3-to-remove") should have size 0
}
eventually(timeout(1000 milliseconds), interval(10 milliseconds)) {
val memStatus = master.getMemoryStatus.head._2
memStatus._1 should equal (2000L)
memStatus._2 should equal (2000L)
}
}
test("removing rdd") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 2000, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
// Putting a1, a2 and a3 in memory.
store.putSingle(rdd(0, 0), a1, StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(0, 1), a2, StorageLevel.MEMORY_ONLY)
store.putSingle("nonrddblock", a3, StorageLevel.MEMORY_ONLY)
master.removeRdd(0, blocking = false)
eventually(timeout(1000 milliseconds), interval(10 milliseconds)) {
store.getSingle(rdd(0, 0)) should be (None)
master.getLocations(rdd(0, 0)) should have size 0
}
eventually(timeout(1000 milliseconds), interval(10 milliseconds)) {
store.getSingle(rdd(0, 1)) should be (None)
master.getLocations(rdd(0, 1)) should have size 0
}
eventually(timeout(1000 milliseconds), interval(10 milliseconds)) {
store.getSingle("nonrddblock") should not be (None)
master.getLocations("nonrddblock") should have size (1)
}
store.putSingle(rdd(0, 0), a1, StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(0, 1), a2, StorageLevel.MEMORY_ONLY)
master.removeRdd(0, blocking = true)
store.getSingle(rdd(0, 0)) should be (None)
master.getLocations(rdd(0, 0)) should have size 0
store.getSingle(rdd(0, 1)) should be (None)
master.getLocations(rdd(0, 1)) should have size 0
}
test("reregistration on heart beat") {
val heartBeat = PrivateMethod[Unit]('heartBeat)
store = new BlockManager("<driver>", actorSystem, master, serializer, 2000, conf, securityMgr)
val a1 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY)
assert(store.getSingle("a1").isDefined, "a1 was not in store")
assert(master.getLocations("a1").size > 0, "master was not told about a1")
master.removeExecutor(store.blockManagerId.executorId)
assert(master.getLocations("a1").size == 0, "a1 was not removed from master")
store invokePrivate heartBeat()
assert(master.getLocations("a1").size > 0, "a1 was not reregistered with master")
}
test("reregistration on block update") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 2000, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY)
assert(master.getLocations("a1").size > 0, "master was not told about a1")
master.removeExecutor(store.blockManagerId.executorId)
assert(master.getLocations("a1").size == 0, "a1 was not removed from master")
store.putSingle("a2", a2, StorageLevel.MEMORY_ONLY)
store.waitForAsyncReregister()
assert(master.getLocations("a1").size > 0, "a1 was not reregistered with master")
assert(master.getLocations("a2").size > 0, "master was not told about a2")
}
test("reregistration doesn't dead lock") {
val heartBeat = PrivateMethod[Unit]('heartBeat)
store = new BlockManager("<driver>", actorSystem, master, serializer, 2000, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = List(new Array[Byte](400))
// try many times to trigger any deadlocks
for (i <- 1 to 100) {
master.removeExecutor(store.blockManagerId.executorId)
val t1 = new Thread {
override def run() {
store.put("a2", a2.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
}
}
val t2 = new Thread {
override def run() {
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY)
}
}
val t3 = new Thread {
override def run() {
store invokePrivate heartBeat()
}
}
t1.start()
t2.start()
t3.start()
t1.join()
t2.join()
t3.join()
store.dropFromMemory("a1", null)
store.dropFromMemory("a2", null)
store.waitForAsyncReregister()
}
}
test("in-memory LRU storage") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY)
store.putSingle("a2", a2, StorageLevel.MEMORY_ONLY)
store.putSingle("a3", a3, StorageLevel.MEMORY_ONLY)
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3").isDefined, "a3 was not in store")
assert(store.getSingle("a1") === None, "a1 was in store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
// At this point a2 was gotten last, so LRU will getSingle rid of a3
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY)
assert(store.getSingle("a1").isDefined, "a1 was not in store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3") === None, "a3 was in store")
}
test("in-memory LRU storage with serialization") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY_SER)
store.putSingle("a2", a2, StorageLevel.MEMORY_ONLY_SER)
store.putSingle("a3", a3, StorageLevel.MEMORY_ONLY_SER)
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3").isDefined, "a3 was not in store")
assert(store.getSingle("a1") === None, "a1 was in store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
// At this point a2 was gotten last, so LRU will getSingle rid of a3
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY_SER)
assert(store.getSingle("a1").isDefined, "a1 was not in store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3") === None, "a3 was in store")
}
test("in-memory LRU for partitions of same RDD") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle(rdd(0, 1), a1, StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(0, 2), a2, StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(0, 3), a3, StorageLevel.MEMORY_ONLY)
// Even though we accessed rdd_0_3 last, it should not have replaced partitions 1 and 2
// from the same RDD
assert(store.getSingle(rdd(0, 3)) === None, "rdd_0_3 was in store")
assert(store.getSingle(rdd(0, 2)).isDefined, "rdd_0_2 was not in store")
assert(store.getSingle(rdd(0, 1)).isDefined, "rdd_0_1 was not in store")
// Check that rdd_0_3 doesn't replace them even after further accesses
assert(store.getSingle(rdd(0, 3)) === None, "rdd_0_3 was in store")
assert(store.getSingle(rdd(0, 3)) === None, "rdd_0_3 was in store")
assert(store.getSingle(rdd(0, 3)) === None, "rdd_0_3 was in store")
}
test("in-memory LRU for partitions of multiple RDDs") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
store.putSingle(rdd(0, 1), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(0, 2), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(1, 1), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
// At this point rdd_1_1 should've replaced rdd_0_1
assert(store.memoryStore.contains(rdd(1, 1)), "rdd_1_1 was not in store")
assert(!store.memoryStore.contains(rdd(0, 1)), "rdd_0_1 was in store")
assert(store.memoryStore.contains(rdd(0, 2)), "rdd_0_2 was not in store")
// Do a get() on rdd_0_2 so that it is the most recently used item
assert(store.getSingle(rdd(0, 2)).isDefined, "rdd_0_2 was not in store")
// Put in more partitions from RDD 0; they should replace rdd_1_1
store.putSingle(rdd(0, 3), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(0, 4), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
// Now rdd_1_1 should be dropped to add rdd_0_3, but then rdd_0_2 should *not* be dropped
// when we try to add rdd_0_4.
assert(!store.memoryStore.contains(rdd(1, 1)), "rdd_1_1 was in store")
assert(!store.memoryStore.contains(rdd(0, 1)), "rdd_0_1 was in store")
assert(!store.memoryStore.contains(rdd(0, 4)), "rdd_0_4 was in store")
assert(store.memoryStore.contains(rdd(0, 2)), "rdd_0_2 was not in store")
assert(store.memoryStore.contains(rdd(0, 3)), "rdd_0_3 was not in store")
}
test("tachyon storage") {
// TODO Make the spark.test.tachyon.enable true after using tachyon 0.5.0 testing jar.
val tachyonUnitTestEnabled = conf.getBoolean("spark.test.tachyon.enable", false)
if (tachyonUnitTestEnabled) {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.OFF_HEAP)
store.putSingle("a2", a2, StorageLevel.OFF_HEAP)
store.putSingle("a3", a3, StorageLevel.OFF_HEAP)
assert(store.getSingle("a3").isDefined, "a3 was in store")
assert(store.getSingle("a2").isDefined, "a2 was in store")
assert(store.getSingle("a1").isDefined, "a1 was in store")
} else {
info("tachyon storage test disabled.")
}
}
test("on-disk storage") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.DISK_ONLY)
store.putSingle("a2", a2, StorageLevel.DISK_ONLY)
store.putSingle("a3", a3, StorageLevel.DISK_ONLY)
assert(store.getSingle("a2").isDefined, "a2 was in store")
assert(store.getSingle("a3").isDefined, "a3 was in store")
assert(store.getSingle("a1").isDefined, "a1 was in store")
}
test("disk and memory storage") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_AND_DISK)
store.putSingle("a2", a2, StorageLevel.MEMORY_AND_DISK)
store.putSingle("a3", a3, StorageLevel.MEMORY_AND_DISK)
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3").isDefined, "a3 was not in store")
assert(store.memoryStore.getValues("a1") == None, "a1 was in memory store")
assert(store.getSingle("a1").isDefined, "a1 was not in store")
assert(store.memoryStore.getValues("a1").isDefined, "a1 was not in memory store")
}
test("disk and memory storage with getLocalBytes") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_AND_DISK)
store.putSingle("a2", a2, StorageLevel.MEMORY_AND_DISK)
store.putSingle("a3", a3, StorageLevel.MEMORY_AND_DISK)
assert(store.getLocalBytes("a2").isDefined, "a2 was not in store")
assert(store.getLocalBytes("a3").isDefined, "a3 was not in store")
assert(store.memoryStore.getValues("a1") == None, "a1 was in memory store")
assert(store.getLocalBytes("a1").isDefined, "a1 was not in store")
assert(store.memoryStore.getValues("a1").isDefined, "a1 was not in memory store")
}
test("disk and memory storage with serialization") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_AND_DISK_SER)
store.putSingle("a2", a2, StorageLevel.MEMORY_AND_DISK_SER)
store.putSingle("a3", a3, StorageLevel.MEMORY_AND_DISK_SER)
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3").isDefined, "a3 was not in store")
assert(store.memoryStore.getValues("a1") == None, "a1 was in memory store")
assert(store.getSingle("a1").isDefined, "a1 was not in store")
assert(store.memoryStore.getValues("a1").isDefined, "a1 was not in memory store")
}
test("disk and memory storage with serialization and getLocalBytes") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
store.putSingle("a1", a1, StorageLevel.MEMORY_AND_DISK_SER)
store.putSingle("a2", a2, StorageLevel.MEMORY_AND_DISK_SER)
store.putSingle("a3", a3, StorageLevel.MEMORY_AND_DISK_SER)
assert(store.getLocalBytes("a2").isDefined, "a2 was not in store")
assert(store.getLocalBytes("a3").isDefined, "a3 was not in store")
assert(store.memoryStore.getValues("a1") == None, "a1 was in memory store")
assert(store.getLocalBytes("a1").isDefined, "a1 was not in store")
assert(store.memoryStore.getValues("a1").isDefined, "a1 was not in memory store")
}
test("LRU with mixed storage levels") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val a1 = new Array[Byte](400)
val a2 = new Array[Byte](400)
val a3 = new Array[Byte](400)
val a4 = new Array[Byte](400)
// First store a1 and a2, both in memory, and a3, on disk only
store.putSingle("a1", a1, StorageLevel.MEMORY_ONLY_SER)
store.putSingle("a2", a2, StorageLevel.MEMORY_ONLY_SER)
store.putSingle("a3", a3, StorageLevel.DISK_ONLY)
// At this point LRU should not kick in because a3 is only on disk
assert(store.getSingle("a1").isDefined, "a1 was not in store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3").isDefined, "a3 was not in store")
// Now let's add in a4, which uses both disk and memory; a1 should drop out
store.putSingle("a4", a4, StorageLevel.MEMORY_AND_DISK_SER)
assert(store.getSingle("a1") == None, "a1 was in store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
assert(store.getSingle("a3").isDefined, "a3 was not in store")
assert(store.getSingle("a4").isDefined, "a4 was not in store")
}
test("in-memory LRU with streams") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val list1 = List(new Array[Byte](200), new Array[Byte](200))
val list2 = List(new Array[Byte](200), new Array[Byte](200))
val list3 = List(new Array[Byte](200), new Array[Byte](200))
store.put("list1", list1.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
store.put("list2", list2.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
store.put("list3", list3.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
assert(store.get("list2").isDefined, "list2 was not in store")
assert(store.get("list2").get.size == 2)
assert(store.get("list3").isDefined, "list3 was not in store")
assert(store.get("list3").get.size == 2)
assert(store.get("list1") === None, "list1 was in store")
assert(store.get("list2").isDefined, "list2 was not in store")
assert(store.get("list2").get.size == 2)
// At this point list2 was gotten last, so LRU will getSingle rid of list3
store.put("list1", list1.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
assert(store.get("list1").isDefined, "list1 was not in store")
assert(store.get("list1").get.size == 2)
assert(store.get("list2").isDefined, "list2 was not in store")
assert(store.get("list2").get.size == 2)
assert(store.get("list3") === None, "list1 was in store")
}
test("LRU with mixed storage levels and streams") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val list1 = List(new Array[Byte](200), new Array[Byte](200))
val list2 = List(new Array[Byte](200), new Array[Byte](200))
val list3 = List(new Array[Byte](200), new Array[Byte](200))
val list4 = List(new Array[Byte](200), new Array[Byte](200))
// First store list1 and list2, both in memory, and list3, on disk only
store.put("list1", list1.iterator, StorageLevel.MEMORY_ONLY_SER, tellMaster = true)
store.put("list2", list2.iterator, StorageLevel.MEMORY_ONLY_SER, tellMaster = true)
store.put("list3", list3.iterator, StorageLevel.DISK_ONLY, tellMaster = true)
// At this point LRU should not kick in because list3 is only on disk
assert(store.get("list1").isDefined, "list2 was not in store")
assert(store.get("list1").get.size === 2)
assert(store.get("list2").isDefined, "list3 was not in store")
assert(store.get("list2").get.size === 2)
assert(store.get("list3").isDefined, "list1 was not in store")
assert(store.get("list3").get.size === 2)
assert(store.get("list1").isDefined, "list2 was not in store")
assert(store.get("list1").get.size === 2)
assert(store.get("list2").isDefined, "list3 was not in store")
assert(store.get("list2").get.size === 2)
assert(store.get("list3").isDefined, "list1 was not in store")
assert(store.get("list3").get.size === 2)
// Now let's add in list4, which uses both disk and memory; list1 should drop out
store.put("list4", list4.iterator, StorageLevel.MEMORY_AND_DISK_SER, tellMaster = true)
assert(store.get("list1") === None, "list1 was in store")
assert(store.get("list2").isDefined, "list3 was not in store")
assert(store.get("list2").get.size === 2)
assert(store.get("list3").isDefined, "list1 was not in store")
assert(store.get("list3").get.size === 2)
assert(store.get("list4").isDefined, "list4 was not in store")
assert(store.get("list4").get.size === 2)
}
test("negative byte values in ByteBufferInputStream") {
val buffer = ByteBuffer.wrap(Array[Int](254, 255, 0, 1, 2).map(_.toByte).toArray)
val stream = new ByteBufferInputStream(buffer)
val temp = new Array[Byte](10)
assert(stream.read() === 254, "unexpected byte read")
assert(stream.read() === 255, "unexpected byte read")
assert(stream.read() === 0, "unexpected byte read")
assert(stream.read(temp, 0, temp.length) === 2, "unexpected number of bytes read")
assert(stream.read() === -1, "end of stream not signalled")
assert(stream.read(temp, 0, temp.length) === -1, "end of stream not signalled")
}
test("overly large block") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 500, conf, securityMgr)
store.putSingle("a1", new Array[Byte](1000), StorageLevel.MEMORY_ONLY)
assert(store.getSingle("a1") === None, "a1 was in store")
store.putSingle("a2", new Array[Byte](1000), StorageLevel.MEMORY_AND_DISK)
assert(store.memoryStore.getValues("a2") === None, "a2 was in memory store")
assert(store.getSingle("a2").isDefined, "a2 was not in store")
}
test("block compression") {
try {
conf.set("spark.shuffle.compress", "true")
store = new BlockManager("exec1", actorSystem, master, serializer, 2000, conf, securityMgr)
store.putSingle(ShuffleBlockId(0, 0, 0), new Array[Byte](1000), StorageLevel.MEMORY_ONLY_SER)
assert(store.memoryStore.getSize(ShuffleBlockId(0, 0, 0)) <= 100,
"shuffle_0_0_0 was not compressed")
store.stop()
store = null
conf.set("spark.shuffle.compress", "false")
store = new BlockManager("exec2", actorSystem, master, serializer, 2000, conf, securityMgr)
store.putSingle(ShuffleBlockId(0, 0, 0), new Array[Byte](1000), StorageLevel.MEMORY_ONLY_SER)
assert(store.memoryStore.getSize(ShuffleBlockId(0, 0, 0)) >= 1000,
"shuffle_0_0_0 was compressed")
store.stop()
store = null
conf.set("spark.broadcast.compress", "true")
store = new BlockManager("exec3", actorSystem, master, serializer, 2000, conf, securityMgr)
store.putSingle(BroadcastBlockId(0), new Array[Byte](1000), StorageLevel.MEMORY_ONLY_SER)
assert(store.memoryStore.getSize(BroadcastBlockId(0)) <= 100,
"broadcast_0 was not compressed")
store.stop()
store = null
conf.set("spark.broadcast.compress", "false")
store = new BlockManager("exec4", actorSystem, master, serializer, 2000, conf, securityMgr)
store.putSingle(BroadcastBlockId(0), new Array[Byte](1000), StorageLevel.MEMORY_ONLY_SER)
assert(store.memoryStore.getSize(BroadcastBlockId(0)) >= 1000, "broadcast_0 was compressed")
store.stop()
store = null
conf.set("spark.rdd.compress", "true")
store = new BlockManager("exec5", actorSystem, master, serializer, 2000, conf, securityMgr)
store.putSingle(rdd(0, 0), new Array[Byte](1000), StorageLevel.MEMORY_ONLY_SER)
assert(store.memoryStore.getSize(rdd(0, 0)) <= 100, "rdd_0_0 was not compressed")
store.stop()
store = null
conf.set("spark.rdd.compress", "false")
store = new BlockManager("exec6", actorSystem, master, serializer, 2000, conf, securityMgr)
store.putSingle(rdd(0, 0), new Array[Byte](1000), StorageLevel.MEMORY_ONLY_SER)
assert(store.memoryStore.getSize(rdd(0, 0)) >= 1000, "rdd_0_0 was compressed")
store.stop()
store = null
// Check that any other block types are also kept uncompressed
store = new BlockManager("exec7", actorSystem, master, serializer, 2000, conf, securityMgr)
store.putSingle("other_block", new Array[Byte](1000), StorageLevel.MEMORY_ONLY)
assert(store.memoryStore.getSize("other_block") >= 1000, "other_block was compressed")
store.stop()
store = null
} finally {
System.clearProperty("spark.shuffle.compress")
System.clearProperty("spark.broadcast.compress")
System.clearProperty("spark.rdd.compress")
}
}
test("block store put failure") {
// Use Java serializer so we can create an unserializable error.
store = new BlockManager("<driver>", actorSystem, master, new JavaSerializer(conf), 1200, conf,
securityMgr)
// The put should fail since a1 is not serializable.
class UnserializableClass
val a1 = new UnserializableClass
intercept[java.io.NotSerializableException] {
store.putSingle("a1", a1, StorageLevel.DISK_ONLY)
}
// Make sure get a1 doesn't hang and returns None.
failAfter(1 second) {
assert(store.getSingle("a1") == None, "a1 should not be in store")
}
}
test("updated block statuses") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
val list = List.fill(2)(new Array[Byte](200))
val bigList = List.fill(8)(new Array[Byte](200))
// 1 updated block (i.e. list1)
val updatedBlocks1 =
store.put("list1", list.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
assert(updatedBlocks1.size === 1)
assert(updatedBlocks1.head._1 === TestBlockId("list1"))
assert(updatedBlocks1.head._2.storageLevel === StorageLevel.MEMORY_ONLY)
// 1 updated block (i.e. list2)
val updatedBlocks2 =
store.put("list2", list.iterator, StorageLevel.MEMORY_AND_DISK, tellMaster = true)
assert(updatedBlocks2.size === 1)
assert(updatedBlocks2.head._1 === TestBlockId("list2"))
assert(updatedBlocks2.head._2.storageLevel === StorageLevel.MEMORY_ONLY)
// 2 updated blocks - list1 is kicked out of memory while list3 is added
val updatedBlocks3 =
store.put("list3", list.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
assert(updatedBlocks3.size === 2)
updatedBlocks3.foreach { case (id, status) =>
id match {
case TestBlockId("list1") => assert(status.storageLevel === StorageLevel.NONE)
case TestBlockId("list3") => assert(status.storageLevel === StorageLevel.MEMORY_ONLY)
case _ => fail("Updated block is neither list1 nor list3")
}
}
assert(store.get("list3").isDefined, "list3 was not in store")
// 2 updated blocks - list2 is kicked out of memory (but put on disk) while list4 is added
val updatedBlocks4 =
store.put("list4", list.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
assert(updatedBlocks4.size === 2)
updatedBlocks4.foreach { case (id, status) =>
id match {
case TestBlockId("list2") => assert(status.storageLevel === StorageLevel.DISK_ONLY)
case TestBlockId("list4") => assert(status.storageLevel === StorageLevel.MEMORY_ONLY)
case _ => fail("Updated block is neither list2 nor list4")
}
}
assert(store.get("list4").isDefined, "list4 was not in store")
// No updated blocks - nothing is kicked out of memory because list5 is too big to be added
val updatedBlocks5 =
store.put("list5", bigList.iterator, StorageLevel.MEMORY_ONLY, tellMaster = true)
assert(updatedBlocks5.size === 0)
assert(store.get("list2").isDefined, "list2 was not in store")
assert(store.get("list4").isDefined, "list4 was not in store")
assert(!store.get("list5").isDefined, "list5 was in store")
}
test("SPARK-1194 regression: fix the same-RDD rule for cache replacement") {
store = new BlockManager("<driver>", actorSystem, master, serializer, 1200, conf, securityMgr)
store.putSingle(rdd(0, 0), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
store.putSingle(rdd(1, 0), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
// Access rdd_1_0 to ensure it's not least recently used.
assert(store.getSingle(rdd(1, 0)).isDefined, "rdd_1_0 was not in store")
// According to the same-RDD rule, rdd_1_0 should be replaced here.
store.putSingle(rdd(0, 1), new Array[Byte](400), StorageLevel.MEMORY_ONLY)
// rdd_1_0 should have been replaced, even it's not least recently used.
assert(store.memoryStore.contains(rdd(0, 0)), "rdd_0_0 was not in store")
assert(store.memoryStore.contains(rdd(0, 1)), "rdd_0_1 was not in store")
assert(!store.memoryStore.contains(rdd(1, 0)), "rdd_1_0 was in store")
}
}
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