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STORM-350: Upgrade to newer version of disruptor
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Robert (Bobby) Evans
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Oct 26, 2015
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examples/storm-starter/src/jvm/storm/starter/FastWordCountTopology.java
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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 storm.starter; | ||
|
|
||
| import backtype.storm.Config; | ||
| import backtype.storm.StormSubmitter; | ||
| import backtype.storm.generated.*; | ||
| import backtype.storm.spout.SpoutOutputCollector; | ||
| import backtype.storm.task.TopologyContext; | ||
| import backtype.storm.topology.BasicOutputCollector; | ||
| import backtype.storm.topology.IRichBolt; | ||
| import backtype.storm.topology.OutputFieldsDeclarer; | ||
| import backtype.storm.topology.TopologyBuilder; | ||
| import backtype.storm.topology.base.BaseBasicBolt; | ||
| import backtype.storm.topology.base.BaseRichSpout; | ||
| import backtype.storm.tuple.Fields; | ||
| import backtype.storm.tuple.Tuple; | ||
| import backtype.storm.tuple.Values; | ||
| import backtype.storm.utils.NimbusClient; | ||
| import backtype.storm.utils.Utils; | ||
|
|
||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Random; | ||
| import java.util.concurrent.ThreadLocalRandom; | ||
|
|
||
| /** | ||
| * WordCount but teh spout does not stop, and the bolts are implemented in | ||
| * java. This can show how fast the word count can run. | ||
| */ | ||
| public class FastWordCountTopology { | ||
| public static class FastRandomSentenceSpout extends BaseRichSpout { | ||
| SpoutOutputCollector _collector; | ||
| Random _rand; | ||
|
|
||
| @Override | ||
| public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) { | ||
| _collector = collector; | ||
| _rand = ThreadLocalRandom.current(); | ||
| } | ||
|
|
||
| @Override | ||
| public void nextTuple() { | ||
| String[] sentences = new String[]{ "the cow jumped over the moon", "an apple a day keeps the doctor away", | ||
| "four score and seven years ago", "snow white and the seven dwarfs", "i am at two with nature" }; | ||
| String sentence = sentences[_rand.nextInt(sentences.length)]; | ||
| _collector.emit(new Values(sentence), sentence); | ||
| } | ||
|
|
||
| @Override | ||
| public void ack(Object id) { | ||
| //Ignored | ||
| } | ||
|
|
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| @Override | ||
| public void fail(Object id) { | ||
| _collector.emit(new Values(id), id); | ||
| } | ||
|
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| @Override | ||
| public void declareOutputFields(OutputFieldsDeclarer declarer) { | ||
| declarer.declare(new Fields("sentence")); | ||
| } | ||
| } | ||
|
|
||
| public static class SplitSentence extends BaseBasicBolt { | ||
| @Override | ||
| public void execute(Tuple tuple, BasicOutputCollector collector) { | ||
| String sentence = tuple.getString(0); | ||
| for (String word: sentence.split("\\s+")) { | ||
| collector.emit(new Values(word, 1)); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void declareOutputFields(OutputFieldsDeclarer declarer) { | ||
| declarer.declare(new Fields("word", "count")); | ||
| } | ||
| } | ||
|
|
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| public static class WordCount extends BaseBasicBolt { | ||
| Map<String, Integer> counts = new HashMap<String, Integer>(); | ||
|
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| @Override | ||
| public void execute(Tuple tuple, BasicOutputCollector collector) { | ||
| String word = tuple.getString(0); | ||
| Integer count = counts.get(word); | ||
| if (count == null) | ||
| count = 0; | ||
| count++; | ||
| counts.put(word, count); | ||
| collector.emit(new Values(word, count)); | ||
| } | ||
|
|
||
| @Override | ||
| public void declareOutputFields(OutputFieldsDeclarer declarer) { | ||
| declarer.declare(new Fields("word", "count")); | ||
| } | ||
| } | ||
|
|
||
| public static void printMetrics(Nimbus.Client client, String name) throws Exception { | ||
| ClusterSummary summary = client.getClusterInfo(); | ||
| String id = null; | ||
| for (TopologySummary ts: summary.get_topologies()) { | ||
| if (name.equals(ts.get_name())) { | ||
| id = ts.get_id(); | ||
| } | ||
| } | ||
| if (id == null) { | ||
| throw new Exception("Could not find a topology named "+name); | ||
| } | ||
| TopologyInfo info = client.getTopologyInfo(id); | ||
| int uptime = info.get_uptime_secs(); | ||
| long acked = 0; | ||
| double weightedAvgTotal = 0.0; | ||
| for (ExecutorSummary exec: info.get_executors()) { | ||
| if ("spout".equals(exec.get_component_id())) { | ||
| SpoutStats stats = exec.get_stats().get_specific().get_spout(); | ||
| Map<String, Long> ackedMap = stats.get_acked().get(":all-time"); | ||
| Map<String, Double> avgLatMap = stats.get_complete_ms_avg().get(":all-time"); | ||
| for (String key: ackedMap.keySet()) { | ||
| long ackVal = ackedMap.get(key); | ||
| double latVal = avgLatMap.get(key) * ackVal; | ||
| acked += ackVal; | ||
| weightedAvgTotal += latVal; | ||
| } | ||
| } | ||
| } | ||
| double avgLatency = weightedAvgTotal/acked; | ||
| System.out.println("uptime: "+uptime+" acked: "+acked+" avgLatency: "+avgLatency+" acked/sec: "+(((double)acked)/uptime)); | ||
| } | ||
|
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||
| public static void kill(Nimbus.Client client, String name) throws Exception { | ||
| KillOptions opts = new KillOptions(); | ||
| opts.set_wait_secs(0); | ||
| client.killTopologyWithOpts(name, opts); | ||
| } | ||
|
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| public static void main(String[] args) throws Exception { | ||
|
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| TopologyBuilder builder = new TopologyBuilder(); | ||
|
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| builder.setSpout("spout", new FastRandomSentenceSpout(), 4); | ||
|
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| builder.setBolt("split", new SplitSentence(), 4).shuffleGrouping("spout"); | ||
| builder.setBolt("count", new WordCount(), 4).fieldsGrouping("split", new Fields("word")); | ||
|
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| Config conf = new Config(); | ||
| conf.registerMetricsConsumer(backtype.storm.metric.LoggingMetricsConsumer.class); | ||
|
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| String name = "wc-test"; | ||
| if (args != null && args.length > 0) { | ||
| name = args[0]; | ||
| } | ||
|
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| conf.setNumWorkers(1); | ||
| StormSubmitter.submitTopologyWithProgressBar(args[0], conf, builder.createTopology()); | ||
|
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| Map clusterConf = Utils.readStormConfig(); | ||
| clusterConf.putAll(Utils.readCommandLineOpts()); | ||
| Nimbus.Client client = NimbusClient.getConfiguredClient(clusterConf).getClient(); | ||
|
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| //Sleep for 5 mins | ||
| for (int i = 0; i < 10; i++) { | ||
| Thread.sleep(30 * 1000); | ||
| printMetrics(client, name); | ||
| } | ||
| kill(client, name); | ||
| } | ||
| } |
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