Storm0.9.0集群搭建

Storm集群可以搭建在AWS上，也可以直接手动部署在集群机器上。这里使用手动搭建的方式部署在一个机器上。

环境:ubuntu 13.10 64bit

1.Java安装

Java1.6的安装就不多的说了。

2.python安装

ubuntu自带了

3.zookeeper

单机模式部署方式

http://zookeeper.apache.org/doc/r3.3.3/zookeeperStarted.html#sc_InstallingSingleMode

wget http://apache.fayea.com/apache-mirror/zookeeper/zookeeper-3.4.5/zookeeper-3.4.5.tar.gz
chmod a+x zookeeper-3.4.5.tar.gz
tar zxvf zookeeper-3.4.5.tar.gz

进入conf目录下，新建zoo.cfg文件

tickTime=2000
dataDir=/var/zookeeper
clientPort=2181

dataDir是zk用于存储文件的地址，确保运行用户有权限访问该目录

启动zk

bin/zkServer.sh start

验证一下

echo ruok|nc localhost 2181

返回 imok说明zk起来了

4.ZeroMQ

wget http://download.zeromq.org/zeromq-2.1.7.tar.gz
tar -xzf zeromq-2.1.7.tar.gz
cd zeromq-2.1.7
./configure
make
sudo make install

期间可能遇到一些软件ubuntu没有安装 sudo apt-get install xxx 安装即可

5.JZMQ

git clone https://github.com/nathanmarz/jzmq.git
cd jzmq
./autogen.sh
./configure
make
sudo make install

git的安装和配置

sudo apt-get install git
git config --global user.name author #将用户名设为author
git config --global user.email [email protected] #将用户邮箱设为[email protected]

期间遇到的问题：

(1).make[1]: *** 没有规则可以创建“org/zeromq/ZMQ.class”需要的目标“classdist_noinst.stamp”。停止

修正方法，创建classdist_noinst.stamp文件，

touch src/classdist_noinst.stamp

(2).错误：无法访问 org.zeromq.ZMQ

修正方法，进入src目录，手动编译相关java代码

javac -d . org/zeromq/*.java

6.Storm

下载最新release版本0.9.0.1

解压

tar zxvf storm-0.9.0.1.tar.gz

修改Storm的配置文件 conf/storm.yaml

storm.zookeeper.servers:
     - "localhost"
storm.local.dir: "/home/username/storm-0.9.0.1/workdir"
nimbus.host: "localhost"

说明：

storm.zookeeper.servers：这里使用的zk是本地的，所以用localhost

nimbus.host: 指明nimbus所在的机器

启动：

启动控制节点nimbus

bin/storm nimbus >/dev/null 2>&1 &

启动任务节点supervisor

bin/storm supervisor >/dev/null 2>&1 &

启动ui：在nimbus节点上运行

bin/storm ui >/dev/null 2>&1 &

UI启动后，可以通过 http://localhost:8080观察集群运行情况。

7.HelloWorld

这里使用《Getting started with Strom》书中的例子，这是一个word count 的例子

https://github.com/storm-book/examples-ch02-getting_started/zipball/master

需要修改一下pom文件

<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>storm.book</groupId>
	<artifactId>Getting-Started</artifactId>
	<version>0.0.1-SNAPSHOT</version>

	<build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>2.3.2</version>
				<configuration>
					<source>1.6</source>
					<target>1.6</target>
					<compilerVersion>1.6</compilerVersion>
				</configuration>
			</plugin>
		</plugins>
	</build>

	<repositories>

		<!-- Repository where we can found the storm dependencies -->
		<repository>
			<id>clojars.org</id>
			<url>http://clojars.org/repo</url>
		</repository>

	</repositories>

	<dependencies>

		<!-- Storm Dependency -->
		<dependency>
			<groupId>storm</groupId>
			<artifactId>storm</artifactId>
			<version>0.9.0.1</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>com.esotericsoftware.kryo</groupId>
			<artifactId>kryo</artifactId>
			<version>2.17</version>
		</dependency>


	</dependencies>

</project>

由于例子中没有输出机制，这里使用写文件的方式来验证程序的正确性。

修改WordCounter类，增加一个局部变量

private FileWriter fileWriter;

修改prepare方法

@Override
public void prepare(Map stormConf, TopologyContext context) {
	this.counters = new HashMap<String, Integer>();
	this.name = context.getThisComponentId();
	this.id = context.getThisTaskId();
	
	try {
		this.fileWriter = new FileWriter((String) stormConf.get("outFile"));
	} catch (IOException e) {
		throw new RuntimeException("Error write file ["+stormConf.get("outFile")+"]");
	}
}

修改execute方法

@Override
public void execute(Tuple input, BasicOutputCollector collector) {
	String str = input.getString(0);
	/**
	 * If the word dosn't exist in the map we will create
	 * this, if not We will add 1 
	 */
	if(!counters.containsKey(str)){
		counters.put(str, 1);
	}else{
		Integer c = counters.get(str) + 1;
		counters.put(str, c);
	}
	
	if(this.fileWriter != null){
		try {
			fileWriter.write("Thread " + Thread.currentThread().getName() + " log counters===================" + counters);
			fileWriter.write("\r\n");
			fileWriter.write("====================================================");
			fileWriter.write("\r\n");
			fileWriter.flush();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}

修改TopologyMain的main方法

public class TopologyMain {
	public static void main(String[] args) throws InterruptedException, AlreadyAliveException, InvalidTopologyException {
         
        //Topology definition
		TopologyBuilder builder = new TopologyBuilder();
		builder.setSpout("word-reader",new WordReader());
		builder.setBolt("word-normalizer", new WordNormalizer())
			.shuffleGrouping("word-reader");
		builder.setBolt("word-counter", new WordCounter(),(Number)1)
			.fieldsGrouping("word-normalizer", new Fields("word"));
		
        //Configuration
		Config conf = new Config();
		conf.put("wordsFile", args[0]);
		conf.put("outFile", args[1]);
		conf.setDebug(true);
        //Topology run
		conf.put(Config.TOPOLOGY_MAX_SPOUT_PENDING, 1);
		
	    conf.setNumWorkers(3);
	    StormSubmitter.submitTopology("Getting-Started-Toplogie", conf, builder.createTopology());
	      
//		LocalCluster cluster = new LocalCluster();
//		cluster.submitTopology("Getting-Started-Toplogie", conf, builder.createTopology());
//		Thread.sleep(1000);
//		cluster.shutdown();
	    
	}
}

mvn install 打包之后，得到Getting-Started-0.0.1-SNAPSHOT.jar文件

创建数据源文件 words.txt

Storm
test
are
great
is
an
Storm
simple
application
but
very
powerful
really
Storm
is
great

提交到集群运行

到storm安装目录

bin/storm Getting-Started-0.0.1-SNAPSHOT.jar TopologyMain /tmp/words.txt /tmp/words-result.txt

运行之后，在/tmp 目录下发现新生成的words-result.txt文件，内容如下

Thread Thread-16-word-counter log counters==================={storm=1}
====================================================Thread Thread-16-word-counter log counters==================={test=1, storm=1}
====================================================Thread Thread-16-word-counter log counters==================={are=1, test=1, storm=1}
====================================================Thread Thread-16-word-counter log counters==================={great=1, are=1, test=1, storm=1}
====================================================Thread Thread-16-word-counter log counters==================={is=1, great=1, are=1, test=1, storm=1}
====================================================Thread Thread-16-word-counter log counters==================={is=1, great=1, are=1, test=1, an=1, storm=1}
====================================================Thread Thread-16-word-counter log counters==================={is=1, great=1, are=1, test=1, an=1, storm=2}
====================================================Thread Thread-16-word-counter log counters==================={is=1, great=1, are=1, test=1, simple=1, an=1, storm=2}
====================================================Thread Thread-16-word-counter log counters==================={application=1, is=1, great=1, are=1, test=1, simple=1, an=1, storm=2}
====================================================Thread Thread-16-word-counter log counters==================={but=1, application=1, is=1, great=1, are=1, test=1, simple=1, an=1, storm=2}
====================================================Thread Thread-16-word-counter log counters==================={but=1, application=1, is=1, great=1, are=1, test=1, simple=1, an=1, storm=2, very=1}
====================================================Thread Thread-16-word-counter log counters==================={but=1, application=1, is=1, great=1, are=1, test=1, simple=1, an=1, storm=2, powerful=1, very=1}
====================================================Thread Thread-16-word-counter log counters==================={really=1, but=1, application=1, is=1, great=1, are=1, test=1, simple=1, an=1, storm=2, powerful=1, very=1}
====================================================Thread Thread-16-word-counter log counters==================={really=1, but=1, application=1, is=1, great=1, are=1, test=1, simple=1, an=1, storm=3, powerful=1, very=1}
====================================================Thread Thread-16-word-counter log counters==================={really=1, but=1, application=1, is=2, great=1, are=1, test=1, simple=1, an=1, storm=3, powerful=1, very=1}
====================================================Thread Thread-16-word-counter log counters==================={really=1, but=1, application=1, is=2, great=2, are=1, test=1, simple=1, an=1, storm=3, powerful=1, very=1}
====================================================

参考：

https://github.com/nathanmarz/storm/wiki/Setting-up-a-Storm-cluster

http://zookeeper.apache.org/doc/r3.3.3/zookeeperStarted.html

http://blog.csdn.net/thermosym/article/details/9254799

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