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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one or more |
| 3 | + * contributor license agreements. See the NOTICE file distributed with |
| 4 | + * this work for additional information regarding copyright ownership. |
| 5 | + * The ASF licenses this file to You under the Apache License, Version 2.0 |
| 6 | + * (the "License"); you may not use this file except in compliance with |
| 7 | + * the License. You may obtain a copy of the License at |
| 8 | + * |
| 9 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | + * |
| 11 | + * Unless required by applicable law or agreed to in writing, software |
| 12 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | + * See the License for the specific language governing permissions and |
| 15 | + * limitations under the License. |
| 16 | + */ |
| 17 | +package org.apache.spark.streaming.flume.sink |
| 18 | + |
| 19 | +import java.net.InetSocketAddress |
| 20 | +import java.util.concurrent.atomic.AtomicInteger |
| 21 | +import java.util.concurrent.{TimeUnit, CountDownLatch, Executors} |
| 22 | + |
| 23 | +import scala.collection.JavaConversions._ |
| 24 | +import scala.concurrent.{ExecutionContext, Future} |
| 25 | +import scala.util.{Failure, Success} |
| 26 | + |
| 27 | +import com.google.common.util.concurrent.ThreadFactoryBuilder |
| 28 | +import org.apache.avro.ipc.NettyTransceiver |
| 29 | +import org.apache.avro.ipc.specific.SpecificRequestor |
| 30 | +import org.apache.flume.Context |
| 31 | +import org.apache.flume.channel.MemoryChannel |
| 32 | +import org.apache.flume.event.EventBuilder |
| 33 | +import org.apache.spark.streaming.TestSuiteBase |
| 34 | +import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory |
| 35 | + |
| 36 | +class SparkSinkSuite extends TestSuiteBase { |
| 37 | + val eventsPerBatch = 1000 |
| 38 | + val channelCapacity = 5000 |
| 39 | + |
| 40 | + test("Success") { |
| 41 | + val (channel, sink) = initializeChannelAndSink() |
| 42 | + channel.start() |
| 43 | + sink.start() |
| 44 | + |
| 45 | + putEvents(channel, eventsPerBatch) |
| 46 | + |
| 47 | + val port = sink.getPort |
| 48 | + val address = new InetSocketAddress("0.0.0.0", port) |
| 49 | + |
| 50 | + val (transceiver, client) = getTransceiverAndClient(address, 1)(0) |
| 51 | + val events = client.getEventBatch(1000) |
| 52 | + client.ack(events.getSequenceNumber) |
| 53 | + assert(events.getEvents.size() === 1000) |
| 54 | + assertChannelIsEmpty(channel) |
| 55 | + sink.stop() |
| 56 | + channel.stop() |
| 57 | + transceiver.close() |
| 58 | + } |
| 59 | + |
| 60 | + test("Nack") { |
| 61 | + val (channel, sink) = initializeChannelAndSink() |
| 62 | + channel.start() |
| 63 | + sink.start() |
| 64 | + putEvents(channel, eventsPerBatch) |
| 65 | + |
| 66 | + val port = sink.getPort |
| 67 | + val address = new InetSocketAddress("0.0.0.0", port) |
| 68 | + |
| 69 | + val (transceiver, client) = getTransceiverAndClient(address, 1)(0) |
| 70 | + val events = client.getEventBatch(1000) |
| 71 | + assert(events.getEvents.size() === 1000) |
| 72 | + client.nack(events.getSequenceNumber) |
| 73 | + assert(availableChannelSlots(channel) === 4000) |
| 74 | + sink.stop() |
| 75 | + channel.stop() |
| 76 | + transceiver.close() |
| 77 | + } |
| 78 | + |
| 79 | + test("Timeout") { |
| 80 | + val (channel, sink) = initializeChannelAndSink(Map(SparkSinkConfig |
| 81 | + .CONF_TRANSACTION_TIMEOUT -> 1.toString)) |
| 82 | + channel.start() |
| 83 | + sink.start() |
| 84 | + putEvents(channel, eventsPerBatch) |
| 85 | + val port = sink.getPort |
| 86 | + val address = new InetSocketAddress("0.0.0.0", port) |
| 87 | + |
| 88 | + val (transceiver, client) = getTransceiverAndClient(address, 1)(0) |
| 89 | + val events = client.getEventBatch(1000) |
| 90 | + assert(events.getEvents.size() === 1000) |
| 91 | + Thread.sleep(1000) |
| 92 | + assert(availableChannelSlots(channel) === 4000) |
| 93 | + sink.stop() |
| 94 | + channel.stop() |
| 95 | + transceiver.close() |
| 96 | + } |
| 97 | + |
| 98 | + test("Multiple consumers") { |
| 99 | + testMultipleConsumers(failSome = false) |
| 100 | + } |
| 101 | + |
| 102 | + test("Multiple consumers with some failures") { |
| 103 | + testMultipleConsumers(failSome = true) |
| 104 | + } |
| 105 | + |
| 106 | + def testMultipleConsumers(failSome: Boolean): Unit = { |
| 107 | + implicit val executorContext = ExecutionContext |
| 108 | + .fromExecutorService(Executors.newFixedThreadPool(5)) |
| 109 | + val (channel, sink) = initializeChannelAndSink() |
| 110 | + channel.start() |
| 111 | + sink.start() |
| 112 | + (1 to 5).foreach(_ => putEvents(channel, eventsPerBatch)) |
| 113 | + val port = sink.getPort |
| 114 | + val address = new InetSocketAddress("0.0.0.0", port) |
| 115 | + val transceiversAndClients = getTransceiverAndClient(address, 5) |
| 116 | + val batchCounter = new CountDownLatch(5) |
| 117 | + val counter = new AtomicInteger(0) |
| 118 | + transceiversAndClients.foreach(x => { |
| 119 | + Future { |
| 120 | + val client = x._2 |
| 121 | + val events = client.getEventBatch(1000) |
| 122 | + if (!failSome || counter.getAndIncrement() % 2 == 0) { |
| 123 | + client.ack(events.getSequenceNumber) |
| 124 | + } else { |
| 125 | + client.nack(events.getSequenceNumber) |
| 126 | + throw new RuntimeException("Sending NACK for failure!") |
| 127 | + } |
| 128 | + events |
| 129 | + }.onComplete { |
| 130 | + case Success(events) => |
| 131 | + assert(events.getEvents.size() === 1000) |
| 132 | + batchCounter.countDown() |
| 133 | + case Failure(t) => |
| 134 | + // Don't re-throw the exception, causes a nasty unnecessary stack trace on stdout |
| 135 | + batchCounter.countDown() |
| 136 | + } |
| 137 | + }) |
| 138 | + batchCounter.await() |
| 139 | + TimeUnit.SECONDS.sleep(1) // Allow the sink to commit the transactions. |
| 140 | + executorContext.shutdown() |
| 141 | + if(failSome) { |
| 142 | + assert(availableChannelSlots(channel) === 3000) |
| 143 | + } else { |
| 144 | + assertChannelIsEmpty(channel) |
| 145 | + } |
| 146 | + sink.stop() |
| 147 | + channel.stop() |
| 148 | + transceiversAndClients.foreach(x => x._1.close()) |
| 149 | + } |
| 150 | + |
| 151 | + private def initializeChannelAndSink(overrides: Map[String, String] = Map.empty): (MemoryChannel, |
| 152 | + SparkSink) = { |
| 153 | + val channel = new MemoryChannel() |
| 154 | + val channelContext = new Context() |
| 155 | + |
| 156 | + channelContext.put("capacity", channelCapacity.toString) |
| 157 | + channelContext.put("transactionCapacity", 1000.toString) |
| 158 | + channelContext.put("keep-alive", 0.toString) |
| 159 | + channelContext.putAll(overrides) |
| 160 | + channel.configure(channelContext) |
| 161 | + |
| 162 | + val sink = new SparkSink() |
| 163 | + val sinkContext = new Context() |
| 164 | + sinkContext.put(SparkSinkConfig.CONF_HOSTNAME, "0.0.0.0") |
| 165 | + sinkContext.put(SparkSinkConfig.CONF_PORT, 0.toString) |
| 166 | + sink.configure(sinkContext) |
| 167 | + sink.setChannel(channel) |
| 168 | + (channel, sink) |
| 169 | + } |
| 170 | + |
| 171 | + private def putEvents(ch: MemoryChannel, count: Int): Unit = { |
| 172 | + val tx = ch.getTransaction |
| 173 | + tx.begin() |
| 174 | + (1 to count).foreach(x => ch.put(EventBuilder.withBody(x.toString.getBytes))) |
| 175 | + tx.commit() |
| 176 | + tx.close() |
| 177 | + } |
| 178 | + |
| 179 | + private def getTransceiverAndClient(address: InetSocketAddress, |
| 180 | + count: Int): Seq[(NettyTransceiver, SparkFlumeProtocol.Callback)] = { |
| 181 | + |
| 182 | + (1 to count).map(_ => { |
| 183 | + lazy val channelFactoryExecutor = |
| 184 | + Executors.newCachedThreadPool(new ThreadFactoryBuilder().setDaemon(true). |
| 185 | + setNameFormat("Flume Receiver Channel Thread - %d").build()) |
| 186 | + lazy val channelFactory = |
| 187 | + new NioClientSocketChannelFactory(channelFactoryExecutor, channelFactoryExecutor) |
| 188 | + val transceiver = new NettyTransceiver(address, channelFactory) |
| 189 | + val client = SpecificRequestor.getClient(classOf[SparkFlumeProtocol.Callback], transceiver) |
| 190 | + (transceiver, client) |
| 191 | + }) |
| 192 | + } |
| 193 | + |
| 194 | + private def assertChannelIsEmpty(channel: MemoryChannel): Unit = { |
| 195 | + assert(availableChannelSlots(channel) === channelCapacity) |
| 196 | + } |
| 197 | + |
| 198 | + private def availableChannelSlots(channel: MemoryChannel): Int = { |
| 199 | + val queueRemaining = channel.getClass.getDeclaredField("queueRemaining") |
| 200 | + queueRemaining.setAccessible(true) |
| 201 | + val m = queueRemaining.get(channel).getClass.getDeclaredMethod("availablePermits") |
| 202 | + m.invoke(queueRemaining.get(channel)).asInstanceOf[Int] |
| 203 | + } |
| 204 | +} |
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