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Storm编程入门API系列之Storm的Topology默认Workers、默认executors和默认tasks数目

2017-07-27 22:35 411 查看

　　关于，storm的启动我这里不多说了。

　见博客

storm的3节点集群详细启动步骤（非HA和HA）（图文详解）

　　

　　建立stormDemo项目

Group Id ： zhouls.bigdata

Artifact Id ： stormDemo

Package : stormDemo

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>

<groupId>zhouls.bigdata</groupId>
<artifactId>stormDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>stormDemo</name>
<url>http://maven.apache.org</url>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.storm</groupId>
<artifactId>storm-core</artifactId>
<version>1.0.2</version>
</dependency>
</dependencies>
</project>

　　编写代码StormTopology.java

　以下是数字累加求和的例子

　　spout一直产生从1开始的递增数字

　　bolt进行汇总打印

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 StormTopology {

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();
String topology_name = StormTopology.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();
}
}

}

}

[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 204
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 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]$ mkdir jar
[hadoop@master apache-storm-1.0.2]$ cd jar/
[hadoop@master jar]$ pwd
/home/hadoop/app/apache-storm-1.0.2/jar
[hadoop@master jar]$ ll
total 0
[hadoop@master jar]$ rz

[hadoop@master jar]$ ll
total 8
-rw-r--r-- 1 hadoop hadoop 4869 Jul 27 22:17 StormTopology.jar
[hadoop@master 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 22:18 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/StormTopology.jar zhouls.bigdata.stormDemo.StormTopology 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/StormTopology.jar:/home/hadoop/app/apache-storm-1.0.2/conf:/home/hadoop/app/apache-storm-1.0.2/bin -Dstorm.jar=jar/StormTopology.jar zhouls.bigdata.stormDemo.StormTopology aaa
16503 [main] INFO  o.a.s.StormSubmitter - Generated ZooKeeper secret payload for MD5-digest: -5252258187769573644:-8540038416575654367
17093 [main] INFO  o.a.s.s.a.AuthUtils - Got AutoCreds []
18654 [main] INFO  o.a.s.StormSubmitter - Uploading topology jar jar/StormTopology.jar to assigned location: /home/hadoop/data/storm/nimbus/inbox/stormjar-cf402e8a-abf7-46bc-a452-14b53aa6b25e.jar
18939 [main] INFO  o.a.s.StormSubmitter - Successfully uploaded topology jar to assigned location: /home/hadoop/data/storm/nimbus/inbox/stormjar-cf402e8a-abf7-46bc-a452-14b53aa6b25e.jar
18940 [main] INFO  o.a.s.StormSubmitter - Submitting topology StormTopology in distributed mode with conf {"storm.zookeeper.topology.auth.scheme":"digest","storm.zookeeper.topology.auth.payload":"-5252258187769573644:-8540038416575654367"}
23899 [main] INFO  o.a.s.StormSubmitter - Finished submitting topology: StormTopology
[hadoop@master apache-storm-1.0.2]$

　　然后，查看storm 的ui界面