Storm编程入门API系列之Storm的Topology多个Workers数目控制实现
继续编写 StormTopologyMoreWorker.java package zhouls.bigdata.stormDemo; import java.util.Map; import org.apache.storm.Config; import org.apache.storm.LocalCluster; import org.apache.storm.StormSubmitter; import org.apache.storm.generated.AlreadyAliveException; import org.apache.storm.generated.AuthorizationException; import org.apache.storm.generated.InvalidTopologyException; import org.apache.storm.spout.SpoutOutputCollector; import org.apache.storm.task.OutputCollector; import org.apache.storm.task.TopologyContext; import org.apache.storm.topology.OutputFieldsDeclarer; import org.apache.storm.topology.TopologyBuilder; import org.apache.storm.topology.base.BaseRichBolt; import org.apache.storm.topology.base.BaseRichSpout; import org.apache.storm.tuple.Fields; import org.apache.storm.tuple.Tuple; import org.apache.storm.tuple.Values; import org.apache.storm.utils.Utils; public class StormTopologyMoreWorker { public static class MySpout extends BaseRichSpout{ private Map conf; private TopologyContext context; private SpoutOutputCollector collector; public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) { this.conf = conf; this.collector = collector; this.context = context; } int num = 0; public void nextTuple() { num++; System.out.println("spout:"+num); this.collector.emit(new Values(num)); Utils.sleep(1000); } public void declareOutputFields(OutputFieldsDeclarer declarer) { declarer.declare(new Fields("num")); } } public static class MyBolt extends BaseRichBolt{ private Map stormConf; private TopologyContext context; private OutputCollector collector; public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) { this.stormConf = stormConf; this.context = context; this.collector = collector; } int sum = 0; public void execute(Tuple input) { Integer num = input.getIntegerByField("num"); sum += num; System.out.println("sum="+sum); } public void declareOutputFields(OutputFieldsDeclarer declarer) { } } public static void main(String[] args) { TopologyBuilder topologyBuilder = new TopologyBuilder(); String spout_id = MySpout.class.getSimpleName(); String bolt_id = MyBolt.class.getSimpleName(); topologyBuilder.setSpout(spout_id, new MySpout()); topologyBuilder.setBolt(bolt_id, new MyBolt()).shuffleGrouping(spout_id); Config config = new Config(); config.setNumWorkers(2); String topology_name = StormTopologyMoreWorker.class.getSimpleName(); if(args.length==0){ //在本地运行 LocalCluster localCluster = new LocalCluster(); localCluster.submitTopology(topology_name, config, topologyBuilder.createTopology()); }else{ //在集群运行 try { StormSubmitter.submitTopology(topology_name, config, topologyBuilder.createTopology()); } catch (AlreadyAliveException e) { e.printStackTrace(); } catch (InvalidTopologyException e) { e.printStackTrace(); } catch (AuthorizationException e) { e.printStackTrace(); } } } } 打jar包 [hadoop@master jar]$ pwd /home/hadoop/app/apache-storm-1.0.2/jar [hadoop@master jar]$ ll total 8 -rw-r--r-- 1 hadoop hadoop 4869 Jul 27 22:17 StormTopology.jar [hadoop@master jar]$ rz [hadoop@master jar]$ ll total 16 -rw-r--r-- 1 hadoop hadoop 4869 Jul 27 22:17 StormTopology.jar -rw-r--r-- 1 hadoop hadoop 4992 Jul 27 22:39 StormTopologyMoreWorker.jar 提交作业之前 [hadoop@master apache-storm-1.0.2]$ pwd /home/hadoop/app/apache-storm-1.0.2 [hadoop@master apache-storm-1.0.2]$ ll total 208 drwxrwxr-x 2 hadoop hadoop 4096 May 21 17:18 bin -rw-r--r-- 1 hadoop hadoop 82317 Jul 27 2016 CHANGELOG.md drwxrwxr-x 2 hadoop hadoop 4096 Jul 27 20:12 conf drwxrwxr-x 3 hadoop hadoop 4096 Jul 27 2016 examples drwxrwxr-x 17 hadoop hadoop 4096 May 21 17:18 external drwxrwxr-x 2 hadoop hadoop 4096 Jul 27 2016 extlib drwxrwxr-x 2 hadoop hadoop 4096 Jul 27 2016 extlib-daemon drwxrwxr-x 2 hadoop hadoop 4096 Jul 27 22:39 jar drwxrwxr-x 2 hadoop hadoop 4096 May 21 17:18 lib -rw-r--r-- 1 hadoop hadoop 32101 Jul 27 2016 LICENSE drwxrwxr-x 2 hadoop hadoop 4096 May 21 17:18 log4j2 drwxrwxr-x 2 hadoop hadoop 4096 May 21 19:05 logs -rw-r--r-- 1 hadoop hadoop 981 Jul 27 2016 NOTICE drwxrwxr-x 6 hadoop hadoop 4096 May 21 17:18 public -rw-r--r-- 1 hadoop hadoop 15287 Jul 27 2016 README.markdown -rw-r--r-- 1 hadoop hadoop 6 Jul 27 2016 RELEASE -rw-r--r-- 1 hadoop hadoop 23774 Jul 27 2016 SECURITY.md [hadoop@master apache-storm-1.0.2]$ bin/storm jar jar/StormTopologyMoreWorker.jar zhouls.bigdata.stormDemo.StormTopologyMoreWorker aaa Running: /home/hadoop/app/jdk/bin/java -client -Ddaemon.name= -Dstorm.options= -Dstorm.home=/home/hadoop/app/apache-storm-1.0.2 -Dstorm.log.dir=/home/hadoop/app/apache-storm-1.0.2/logs -Djava.library.path=/usr/local/lib:/opt/local/lib:/usr/lib -Dstorm.conf.file= -cp /home/hadoop/app/apache-storm-1.0.2/lib/log4j-api-2.1.jar:/home/hadoop/app/apache-storm-1.0.2/lib/kryo-3.0.3.jar:/home/hadoop/app/apache-storm-1.0.2/lib/storm-rename-hack-1.0.2.jar:/home/hadoop/app/apache-storm-1.0.2/lib/log4j-core-2.1.jar:/home/hadoop/app/apache-storm-1.0.2/lib/slf4j-api-1.7.7.jar:/home/hadoop/app/apache-storm-1.0.2/lib/minlog-1.3.0.jar:/home/hadoop/app/apache-storm-1.0.2/lib/objenesis-2.1.jar:/home/hadoop/app/apache-storm-1.0.2/lib/clojure-1.7.0.jar:/home/hadoop/app/apache-storm-1.0.2/lib/servlet-api-2.5.jar:/home/hadoop/app/apache-storm-1.0.2/lib/log4j-slf4j-impl-2.1.jar:/home/hadoop/app/apache-storm-1.0.2/lib/log4j-over-slf4j-1.6.6.jar:/home/hadoop/app/apache-storm-1.0.2/lib/storm-core-1.0.2.jar:/home/hadoop/app/apache-storm-1.0.2/lib/disruptor-3.3.2.jar:/home/hadoop/app/apache-storm-1.0.2/lib/asm-5.0.3.jar:/home/hadoop/app/apache-storm-1.0.2/lib/reflectasm-1.10.1.jar:jar/StormTopologyMoreWorker.jar:/home/hadoop/app/apache-storm-1.0.2/conf:/home/hadoop/app/apache-storm-1.0.2/bin -Dstorm.jar=jar/StormTopologyMoreWorker.jar zhouls.bigdata.stormDemo.StormTopologyMoreWorker aaa 6687 [main] INFO o.a.s.StormSubmitter - Generated ZooKeeper secret payload for MD5-digest: -5319119555480935017:-9144362215090188990 7204 [main] INFO o.a.s.s.a.AuthUtils - Got AutoCreds [] 7785 [main] INFO o.a.s.StormSubmitter - Uploading topology jar jar/StormTopologyMoreWorker.jar to assigned location: /home/hadoop/data/storm/nimbus/inbox/stormjar-ea1d6383-ca31-4033-b784-e06 856000894.jar 7875 [main] INFO o.a.s.StormSubmitter - Successfully uploaded topology jar to assigned location: /home/hadoop/data/storm/nimbus/inbox/stormjar-ea1d6383-ca31-4033-b784-e06856000894.jar 7876 [main] INFO o.a.s.StormSubmitter - Submitting topology StormTopologyMoreWorker in distributed mode with conf {"storm.zookeeper.topology.auth.scheme":"digest","storm.zookeeper.topology.auth.payload":"-5319119555480935017:-9144362215090188990","topology.workers":2} 8962 [main] INFO o.a.s.StormSubmitter - Finished submitting topology: StormTopologyMoreWorker [hadoop@master apache-storm-1.0.2]$ 提交之后 为什么，会是如上的数字呢？大家要学，就要深入去学和理解。 因为，我之前运行的StormTopology没有停掉 现在呢，我将之前运行的StormTopology给停掉，然后，再来看。非常重要 即提示，我们，30秒之后，kill掉。如果大家等不及，可以设置时间短些 为什么，会是如上的数字呢？大家要学，就要深入去学和理解。 本文转自大数据躺过的坑博客园博客，原文链接：http://www.cnblogs.com/zlslch/p/7247860.html，如需转载请自行联系原作者
