storm有两种运行模式(本地模式和集群模式)
1、 首先创建一个类似于HelloWorld的简单程序，以便进入storm的大门，包结构如下：
2、从包结构可以知道，这是一个Maven Project，pom.xml的内容如下：
<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>1.7</source>
<target>1.7</target>
<compilerVersion>1.7</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>0.7.1</version>
</dependency>
</dependencies>
</project>
WorderReader.java的代码如下：
package spouts;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.Map;
import backtype.storm.spout.SpoutOutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseRichSpout;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Values;
public class WordReader extends BaseRichSpout {
private SpoutOutputCollector collector;
private FileReader fileReader;
private boolean completed = false;
public void ack(Object msgId) {
System.out.println("OK:"+msgId);
}
public void close() {
}
public void fail(Object msgId) {
System.out.println("FAIL:"+msgId);
}
/**
* The only thing that the methods will do It is emit each
* file line
*/
public void nextTuple() {
/**
* The nextuple it is called forever, so if we have been readed the file
* we will wait and then return
*/
if(completed){
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
//Do nothing
}
return;
}
String str;
//Open the reader
BufferedReader reader = new BufferedReader(fileReader);
try{
//Read all lines
while((str = reader.readLine()) != null){
/**
* By each line emmit a new value with the line as a their
*/
this.collector.emit(new Values(str),str);
}
}catch(Exception e){
throw new RuntimeException("Error reading tuple",e);
}finally{
completed = true;
}
}
/**
* We will create the file and get the collector object
*/
public void open(Map conf, TopologyContext context,
SpoutOutputCollector collector) {
try {
this.fileReader = new FileReader(conf.get("wordsFile").toString());
} catch (FileNotFoundException e) {
throw new RuntimeException("Error reading file ["+conf.get("wordsFile")+"]");
}
this.collector = collector;
}
/**
* Declare the output field "word"
*/
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("line"));
}
}
WordNormalizer.java的代码如下：
package bolts;
import backtype.storm.topology.BasicOutputCollector;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseBasicBolt;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Tuple;
import backtype.storm.tuple.Values;
public class WordNormalizer extends BaseBasicBolt {
public void cleanup() {}
/**
* The bolt will receive the line from the
* words file and process it to Normalize this line
*
* The normalize will be put the words in lower case
* and split the line to get all words in this
*/
public void execute(Tuple input, BasicOutputCollector collector) {
String sentence = input.getString(0);
String[] words = sentence.split(" ");
for(String word : words){
word = word.trim();
if(!word.isEmpty()){
word = word.toLowerCase();
collector.emit(new Values(word));
}
}
}
/**
* The bolt will only emit the field "word"
*/
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word"));
}
}
WordCounter.java的代码如下：
package bolts;
import java.util.HashMap;
import java.util.Map;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.BasicOutputCollector;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseBasicBolt;
import backtype.storm.tuple.Tuple;
public class WordCounter extends BaseBasicBolt {
Integer id;
String name;
Map<String, Integer> counters;
/**
* At the end of the spout (when the cluster is shutdown
* We will show the word counters
*/
@Override
public void cleanup() {
System.out.println("-- Word Counter ["+name+"-"+id+"] --");
for(Map.Entry<String, Integer> entry : counters.entrySet()){
System.out.println(entry.getKey()+": "+entry.getValue());
}
}
/**
* On create
*/
@Override
public void prepare(Map stormConf, TopologyContext context) {
this.counters = new HashMap<String, Integer>();
this.name = context.getThisComponentId();
this.id = context.getThisTaskId();
}
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
}
@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);
}
}
}
TopologyMain.java的代码如下：
import spouts.WordReader;
import backtype.storm.Config;
import backtype.storm.LocalCluster;
import backtype.storm.topology.TopologyBuilder;
import backtype.storm.tuple.Fields;
import bolts.WordCounter;
import bolts.WordNormalizer;
public class TopologyMain {
public static void main(String[] args) throws InterruptedException {
//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(),1).fieldsGrouping("word-normalizer", new Fields("word"));
//Configuration
Config conf = new Config();
conf.put("wordsFile", args[0]);
conf.setDebug(false);
//Topology run
conf.put(Config.TOPOLOGY_MAX_SPOUT_PENDING, 1);
LocalCluster cluster = new LocalCluster();
cluster.submitTopology("Getting-Started-Toplogie", conf, builder.createTopology());
Thread.sleep(1000);
cluster.shutdown();
}
}
3、下载并安装Maven
下载：http://mirrors.hust.edu.cn/apache/maven/maven-3/3.2.2/
安装：解压apache-maven-3.2.2-bin.tar.gz
然后将apache-maven-3.2.2/bin添加到PATH环境变量里面
4、使用Maven编译项目
首先要进入到项目代码中pom.xml所在的目录，然后执行
mvn compile 命令编译项目代码
5、运行项目代码
mvn exec:java -Dexec.mainClass="TopologyMain" -Dexec.args="src/main/resources/words.txt"
运行结果如下：
[root@Master storm-book]# mvn exec:java -Dexec.mainClass="TopologyMain" -Dexec.args="src/main/resources/words.txt"
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Getting-Started 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- exec-maven-plugin:1.3.1:java (default-cli) @ Getting-Started ---
[WARNING] Warning: killAfter is now deprecated. Do you need it ? Please comment on MEXEC-6.
0 [TopologyMain.main()] INFO backtype.storm.zookeeper - Starting inprocess zookeeper at port 2181 and dir /tmp/dbe36a62-a375-40dc-a2a1-32cba2a06fe3
220 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Starting Nimbus with conf {"topology.fall.back.on.java.serialization" true, "zmq.linger.millis" 0, "topology.skip.missing.kryo.registrations" true, "ui.childopts" "-Xmx768m", "storm.zookeeper.session.timeout" 20000, "nimbus.reassign" true, "nimbus.monitor.freq.secs" 10, "java.library.path" "/usr/local/lib:/opt/local/lib:/usr/lib", "storm.local.dir" "/tmp/02c0aa1b-8f89-40db-9631-9e905cea9115", "supervisor.worker.start.timeout.secs" 240, "nimbus.cleanup.inbox.freq.secs" 600, "nimbus.inbox.jar.expiration.secs" 3600, "storm.zookeeper.port" 2181, "transactional.zookeeper.port" nil, "transactional.zookeeper.servers" nil, "storm.zookeeper.root" "/storm", "supervisor.enable" true, "storm.zookeeper.servers" ["localhost"], "transactional.zookeeper.root" "/transactional", "topology.worker.childopts" nil, "worker.childopts" "-Xmx768m", "supervisor.heartbeat.frequency.secs" 5, "drpc.port" 3772, "supervisor.monitor.frequency.secs" 3, "task.heartbeat.frequency.secs" 3, "topology.max.spout.pending" nil, "storm.zookeeper.retry.interval" 1000, "supervisor.slots.ports" [6700 6701 6702 6703], "topology.debug" false, "nimbus.task.launch.secs" 120, "nimbus.supervisor.timeout.secs" 60, "topology.message.timeout.secs" 30, "task.refresh.poll.secs" 10, "topology.workers" 1, "supervisor.childopts" "-Xmx1024m", "nimbus.thrift.port" 6627, "topology.stats.sample.rate" 0.05, "worker.heartbeat.frequency.secs" 1, "nimbus.task.timeout.secs" 30, "drpc.invocations.port" 3773, "zmq.threads" 1, "storm.zookeeper.retry.times" 5, "topology.state.synchronization.timeout.secs" 60, "supervisor.worker.timeout.secs" 30, "nimbus.file.copy.expiration.secs" 600, "storm.local.mode.zmq" false, "ui.port" 8080, "nimbus.childopts" "-Xmx1024m", "topology.ackers" 1, "storm.cluster.mode" "local", "topology.optimize" true, "topology.max.task.parallelism" nil}
285 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
323 [TopologyMain.main()-EventThread] INFO backtype.storm.zookeeper - Zookeeper state update: :connected:none
429 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
470 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
474 [TopologyMain.main()-EventThread] INFO backtype.storm.zookeeper - Zookeeper state update: :connected:none
477 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
477 [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181] WARN org.apache.zookeeper.server.NIOServerCnxn - EndOfStreamException: Unable to read additional data from client sessionid 0x146fa8f71280002, likely client has closed socket
481 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
489 [TopologyMain.main()-EventThread] INFO backtype.storm.zookeeper - Zookeeper state update: :connected:none
491 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
507 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Starting Supervisor with conf {"topology.fall.back.on.java.serialization" true, "zmq.linger.millis" 0, "topology.skip.missing.kryo.registrations" true, "ui.childopts" "-Xmx768m", "storm.zookeeper.session.timeout" 20000, "nimbus.reassign" true, "nimbus.monitor.freq.secs" 10, "java.library.path" "/usr/local/lib:/opt/local/lib:/usr/lib", "storm.local.dir" "/tmp/71c1d996-8a85-44a5-a52a-0538f6318a7f", "supervisor.worker.start.timeout.secs" 240, "nimbus.cleanup.inbox.freq.secs" 600, "nimbus.inbox.jar.expiration.secs" 3600, "storm.zookeeper.port" 2181, "transactional.zookeeper.port" nil, "transactional.zookeeper.servers" nil, "storm.zookeeper.root" "/storm", "supervisor.enable" true, "storm.zookeeper.servers" ["localhost"], "transactional.zookeeper.root" "/transactional", "topology.worker.childopts" nil, "worker.childopts" "-Xmx768m", "supervisor.heartbeat.frequency.secs" 5, "drpc.port" 3772, "supervisor.monitor.frequency.secs" 3, "task.heartbeat.frequency.secs" 3, "topology.max.spout.pending" nil, "storm.zookeeper.retry.interval" 1000, "supervisor.slots.ports" (1 2 3), "topology.debug" false, "nimbus.task.launch.secs" 120, "nimbus.supervisor.timeout.secs" 60, "topology.message.timeout.secs" 30, "task.refresh.poll.secs" 10, "topology.workers" 1, "supervisor.childopts" "-Xmx1024m", "nimbus.thrift.port" 6627, "topology.stats.sample.rate" 0.05, "worker.heartbeat.frequency.secs" 1, "nimbus.task.timeout.secs" 30, "drpc.invocations.port" 3773, "zmq.threads" 1, "storm.zookeeper.retry.times" 5, "topology.state.synchronization.timeout.secs" 60, "supervisor.worker.timeout.secs" 30, "nimbus.file.copy.expiration.secs" 600, "storm.local.mode.zmq" false, "ui.port" 8080, "nimbus.childopts" "-Xmx1024m", "topology.ackers" 1, "storm.cluster.mode" "local", "topology.optimize" true, "topology.max.task.parallelism" nil}
509 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
513 [TopologyMain.main()-EventThread] INFO backtype.storm.zookeeper - Zookeeper state update: :connected:none
515 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
554 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Starting supervisor with id 0d0f0caf-511a-4458-b1ef-ee4f11399a8a at host Master
558 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Starting Supervisor with conf {"topology.fall.back.on.java.serialization" true, "zmq.linger.millis" 0, "topology.skip.missing.kryo.registrations" true, "ui.childopts" "-Xmx768m", "storm.zookeeper.session.timeout" 20000, "nimbus.reassign" true, "nimbus.monitor.freq.secs" 10, "java.library.path" "/usr/local/lib:/opt/local/lib:/usr/lib", "storm.local.dir" "/tmp/451a5c40-29a7-4c9a-b075-17fe26205a36", "supervisor.worker.start.timeout.secs" 240, "nimbus.cleanup.inbox.freq.secs" 600, "nimbus.inbox.jar.expiration.secs" 3600, "storm.zookeeper.port" 2181, "transactional.zookeeper.port" nil, "transactional.zookeeper.servers" nil, "storm.zookeeper.root" "/storm", "supervisor.enable" true, "storm.zookeeper.servers" ["localhost"], "transactional.zookeeper.root" "/transactional", "topology.worker.childopts" nil, "worker.childopts" "-Xmx768m", "supervisor.heartbeat.frequency.secs" 5, "drpc.port" 3772, "supervisor.monitor.frequency.secs" 3, "task.heartbeat.frequency.secs" 3, "topology.max.spout.pending" nil, "storm.zookeeper.retry.interval" 1000, "supervisor.slots.ports" (4 5 6), "topology.debug" false, "nimbus.task.launch.secs" 120, "nimbus.supervisor.timeout.secs" 60, "topology.message.timeout.secs" 30, "task.refresh.poll.secs" 10, "topology.workers" 1, "supervisor.childopts" "-Xmx1024m", "nimbus.thrift.port" 6627, "topology.stats.sample.rate" 0.05, "worker.heartbeat.frequency.secs" 1, "nimbus.task.timeout.secs" 30, "drpc.invocations.port" 3773, "zmq.threads" 1, "storm.zookeeper.retry.times" 5, "topology.state.synchronization.timeout.secs" 60, "supervisor.worker.timeout.secs" 30, "nimbus.file.copy.expiration.secs" 600, "storm.local.mode.zmq" false, "ui.port" 8080, "nimbus.childopts" "-Xmx1024m", "topology.ackers" 1, "storm.cluster.mode" "local", "topology.optimize" true, "topology.max.task.parallelism" nil}
569 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
591 [TopologyMain.main()-EventThread] INFO backtype.storm.zookeeper - Zookeeper state update: :connected:none
594 [TopologyMain.main()] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
624 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Starting supervisor with id 0dc9916a-36a8-4796-92df-e965b53ae5b0 at host Master
706 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Received topology submission for Getting-Started-Toplogie with conf {"topology.ackers" 1, "topology.kryo.register" nil, "topology.name" "Getting-Started-Toplogie", "storm.id" "Getting-Started-Toplogie-1-1404363043", "wordsFile" "src/main/resources/words.txt", "topology.debug" false, "topology.max.spout.pending" 1}
820 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Task Getting-Started-Toplogie-1-1404363043:1 timed out
822 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Task Getting-Started-Toplogie-1-1404363043:2 timed out
823 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Task Getting-Started-Toplogie-1-1404363043:3 timed out
824 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Task Getting-Started-Toplogie-1-1404363043:4 timed out
831 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Reassigning Getting-Started-Toplogie-1-1404363043 to 1 slots
831 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Reassign ids: [1 2 3 4]
从这一行可以看出，分配了四个id，每个id对应一个task线程
831 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Available slots: (["0dc9916a-36a8-4796-92df-e965b53ae5b0" 4] ["0dc9916a-36a8-4796-92df-e965b53ae5b0" 5] ["0dc9916a-36a8-4796-92df-e965b53ae5b0" 6] ["0d0f0caf-511a-4458-b1ef-ee4f11399a8a" 1] ["0d0f0caf-511a-4458-b1ef-ee4f11399a8a" 2] ["0d0f0caf-511a-4458-b1ef-ee4f11399a8a" 3])
837 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Setting new assignment for storm id Getting-Started-Toplogie-1-1404363043: #:backtype.storm.daemon.common.Assignment{:master-code-dir "/tmp/02c0aa1b-8f89-40db-9631-9e905cea9115/nimbus/stormdist/Getting-Started-Toplogie-1-1404363043", :node->host {"0dc9916a-36a8-4796-92df-e965b53ae5b0" "Master"}, :task->node+port {4 ["0dc9916a-36a8-4796-92df-e965b53ae5b0" 4], 3 ["0dc9916a-36a8-4796-92df-e965b53ae5b0" 4], 2 ["0dc9916a-36a8-4796-92df-e965b53ae5b0" 4], 1 ["0dc9916a-36a8-4796-92df-e965b53ae5b0" 4]}, :task->start-time-secs {1 1404363043, 2 1404363043, 3 1404363043, 4 1404363043}}
863 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Activating Getting-Started-Toplogie: Getting-Started-Toplogie-1-1404363043
871 [Thread-9] INFO backtype.storm.daemon.supervisor - Downloading code for storm id Getting-Started-Toplogie-1-1404363043 from /tmp/02c0aa1b-8f89-40db-9631-9e905cea9115/nimbus/stormdist/Getting-Started-Toplogie-1-1404363043
871 [Thread-4] INFO backtype.storm.daemon.supervisor - Downloading code for storm id Getting-Started-Toplogie-1-1404363043 from /tmp/02c0aa1b-8f89-40db-9631-9e905cea9115/nimbus/stormdist/Getting-Started-Toplogie-1-1404363043
892 [Thread-9] INFO backtype.storm.daemon.supervisor - Finished downloading code for storm id Getting-Started-Toplogie-1-1404363043 from /tmp/02c0aa1b-8f89-40db-9631-9e905cea9115/nimbus/stormdist/Getting-Started-Toplogie-1-1404363043
897 [Thread-4] INFO backtype.storm.daemon.supervisor - Finished downloading code for storm id Getting-Started-Toplogie-1-1404363043 from /tmp/02c0aa1b-8f89-40db-9631-9e905cea9115/nimbus/stormdist/Getting-Started-Toplogie-1-1404363043
929 [Thread-10] INFO backtype.storm.daemon.supervisor - Launching worker with assignment #:backtype.storm.daemon.supervisor.LocalAssignment{:storm-id "Getting-Started-Toplogie-1-1404363043", :task-ids (4 3 2 1)} for this supervisor 0dc9916a-36a8-4796-92df-e965b53ae5b0 on port 4 with id 4a5e8f63-d4c0-4dcd-9a02-95edcdd9f4fb
931 [Thread-10] INFO backtype.storm.daemon.worker - Launching worker for Getting-Started-Toplogie-1-1404363043 on 0dc9916a-36a8-4796-92df-e965b53ae5b0:4 with id 4a5e8f63-d4c0-4dcd-9a02-95edcdd9f4fb and conf {"topology.fall.back.on.java.serialization" true, "zmq.linger.millis" 0, "topology.skip.missing.kryo.registrations" true, "ui.childopts" "-Xmx768m", "storm.zookeeper.session.timeout" 20000, "nimbus.reassign" true, "nimbus.monitor.freq.secs" 10, "java.library.path" "/usr/local/lib:/opt/local/lib:/usr/lib", "storm.local.dir" "/tmp/451a5c40-29a7-4c9a-b075-17fe26205a36", "supervisor.worker.start.timeout.secs" 240, "nimbus.cleanup.inbox.freq.secs" 600, "nimbus.inbox.jar.expiration.secs" 3600, "storm.zookeeper.port" 2181, "transactional.zookeeper.port" nil, "transactional.zookeeper.servers" nil, "storm.zookeeper.root" "/storm", "supervisor.enable" true, "storm.zookeeper.servers" ["localhost"], "transactional.zookeeper.root" "/transactional", "topology.worker.childopts" nil, "worker.childopts" "-Xmx768m", "supervisor.heartbeat.frequency.secs" 5, "drpc.port" 3772, "supervisor.monitor.frequency.secs" 3, "task.heartbeat.frequency.secs" 3, "topology.max.spout.pending" nil, "storm.zookeeper.retry.interval" 1000, "supervisor.slots.ports" (4 5 6), "topology.debug" false, "nimbus.task.launch.secs" 120, "nimbus.supervisor.timeout.secs" 60, "topology.message.timeout.secs" 30, "task.refresh.poll.secs" 10, "topology.workers" 1, "supervisor.childopts" "-Xmx1024m", "nimbus.thrift.port" 6627, "topology.stats.sample.rate" 0.05, "worker.heartbeat.frequency.secs" 1, "nimbus.task.timeout.secs" 30, "drpc.invocations.port" 3773, "zmq.threads" 1, "storm.zookeeper.retry.times" 5, "topology.state.synchronization.timeout.secs" 60, "supervisor.worker.timeout.secs" 30, "nimbus.file.copy.expiration.secs" 600, "storm.local.mode.zmq" false, "ui.port" 8080, "nimbus.childopts" "-Xmx1024m", "topology.ackers" 1, "storm.cluster.mode" "local", "topology.optimize" true, "topology.max.task.parallelism" nil}
932 [Thread-10] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
936 [Thread-10-EventThread] INFO backtype.storm.zookeeper - Zookeeper state update: :connected:none
938 [Thread-10] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
991 [Thread-10] INFO backtype.storm.daemon.task - Loading task word-reader:4
1022 [Thread-10] INFO backtype.storm.daemon.task - Opening spout word-reader:4
1022 [Thread-10] INFO backtype.storm.daemon.task - Opened spout word-reader:4
1028 [Thread-10] INFO backtype.storm.daemon.task - Finished loading task word-reader:4
1028 [Thread-18] INFO backtype.storm.daemon.task - Activating spout word-reader:4
1034 [Thread-10] INFO backtype.storm.daemon.task - Loading task word-normalizer:3
1057 [Thread-10] INFO backtype.storm.daemon.task - Preparing bolt word-normalizer:3
1057 [Thread-10] INFO backtype.storm.daemon.task - Prepared bolt word-normalizer:3
1070 [Thread-10] INFO backtype.storm.daemon.task - Finished loading task word-normalizer:3
1072 [Thread-10] INFO backtype.storm.daemon.task - Loading task word-counter:2
1081 [Thread-10] INFO backtype.storm.daemon.task - Preparing bolt word-counter:2
1081 [Thread-10] INFO backtype.storm.daemon.task - Prepared bolt word-counter:2
1085 [Thread-10] INFO backtype.storm.daemon.task - Finished loading task word-counter:2
1086 [Thread-10] INFO backtype.storm.daemon.task - Loading task __acker:1
1092 [Thread-10] INFO backtype.storm.daemon.task - Preparing bolt __acker:1
1099 [Thread-10] INFO backtype.storm.daemon.task - Prepared bolt __acker:1
1099 [Thread-10] INFO backtype.storm.daemon.task - Finished loading task __acker:1
四个线程分别为word-reader:4 / word-nomalizer:3 / word-counter:2 / task_acker:1
其中除了word-reader:4这个spout线程有5种状态外，其它的每个bolt线程都有四种状态，
而且，这四个线程之间是顺序流的关系，一个线程准备结束，另一个线程接着运行
1116 [Thread-10] INFO backtype.storm.daemon.worker - Worker has topology config {"storm.id" "Getting-Started-Toplogie-1-1404363043", "topology.fall.back.on.java.serialization" true, "zmq.linger.millis" 0, "topology.skip.missing.kryo.registrations" true, "ui.childopts" "-Xmx768m", "storm.zookeeper.session.timeout" 20000, "nimbus.reassign" true, "nimbus.monitor.freq.secs" 10, "java.library.path" "/usr/local/lib:/opt/local/lib:/usr/lib", "storm.local.dir" "/tmp/451a5c40-29a7-4c9a-b075-17fe26205a36", "supervisor.worker.start.timeout.secs" 240, "wordsFile" "src/main/resources/words.txt", "nimbus.cleanup.inbox.freq.secs" 600, "nimbus.inbox.jar.expiration.secs" 3600, "storm.zookeeper.port" 2181, "transactional.zookeeper.port" nil, "transactional.zookeeper.servers" nil, "storm.zookeeper.root" "/storm", "supervisor.enable" true, "storm.zookeeper.servers" ["localhost"], "transactional.zookeeper.root" "/transactional", "topology.name" "Getting-Started-Toplogie", "topology.worker.childopts" nil, "worker.childopts" "-Xmx768m", "supervisor.heartbeat.frequency.secs" 5, "drpc.port" 3772, "supervisor.monitor.frequency.secs" 3, "task.heartbeat.frequency.secs" 3, "topology.max.spout.pending" 1, "storm.zookeeper.retry.interval" 1000, "supervisor.slots.ports" (4 5 6), "topology.debug" false, "nimbus.task.launch.secs" 120, "nimbus.supervisor.timeout.secs" 60, "topology.kryo.register" nil, "topology.message.timeout.secs" 30, "task.refresh.poll.secs" 10, "topology.workers" 1, "supervisor.childopts" "-Xmx1024m", "nimbus.thrift.port" 6627, "topology.stats.sample.rate" 0.05, "worker.heartbeat.frequency.secs" 1, "nimbus.task.timeout.secs" 30, "drpc.invocations.port" 3773, "zmq.threads" 1, "storm.zookeeper.retry.times" 5, "topology.state.synchronization.timeout.secs" 60, "supervisor.worker.timeout.secs" 30, "nimbus.file.copy.expiration.secs" 600, "storm.local.mode.zmq" false, "ui.port" 8080, "nimbus.childopts" "-Xmx1024m", "topology.ackers" 1, "storm.cluster.mode" "local", "topology.optimize" true, "topology.max.task.parallelism" nil}
1116 [Thread-10] INFO backtype.storm.daemon.worker - Worker 4a5e8f63-d4c0-4dcd-9a02-95edcdd9f4fb for storm Getting-Started-Toplogie-1-1404363043 on 0dc9916a-36a8-4796-92df-e965b53ae5b0:4 has finished loading
OK:storm
OK:test
OK:are
OK:great
OK:is
OK:an
OK:storm
OK:simple
OK:application
OK:but
OK:very
OK:powerfull
OK:really
OK:StOrm
OK:is
OK:great
OK:
1888 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Shutting down master
1901 [TopologyMain.main()] INFO backtype.storm.daemon.nimbus - Shut down master
1907 [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181] WARN org.apache.zookeeper.server.NIOServerCnxn - EndOfStreamException: Unable to read additional data from client sessionid 0x146fa8f71280003, likely client has closed socket
1925 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Shutting down supervisor 0d0f0caf-511a-4458-b1ef-ee4f11399a8a
1926 [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181] WARN org.apache.zookeeper.server.NIOServerCnxn - EndOfStreamException: Unable to read additional data from client sessionid 0x146fa8f71280005, likely client has closed socket
1927 [Thread-6] INFO backtype.storm.util - Async loop interrupted!
1928 [Thread-7] INFO backtype.storm.util - Async loop interrupted!
1930 [Thread-8] INFO backtype.storm.util - Async loop interrupted!
1931 [Thread-4] INFO backtype.storm.event - Event manager interrupted
1937 [Thread-5] INFO backtype.storm.event - Event manager interrupted
1940 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Shutting down 0dc9916a-36a8-4796-92df-e965b53ae5b0:4a5e8f63-d4c0-4dcd-9a02-95edcdd9f4fb
1941 [TopologyMain.main()] INFO backtype.storm.process-simulator - Killing process 608ddd21-748c-4de7-afca-e072a705e582
1941 [TopologyMain.main()] INFO backtype.storm.daemon.worker - Shutting down worker Getting-Started-Toplogie-1-1404363043 0dc9916a-36a8-4796-92df-e965b53ae5b0 4
1943 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shutting down task Getting-Started-Toplogie-1-1404363043:4
1944 [Thread-16] INFO backtype.storm.util - Async loop interrupted!
1963 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shut down task Getting-Started-Toplogie-1-1404363043:4
1963 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shutting down task Getting-Started-Toplogie-1-1404363043:3
1964 [Thread-20] INFO backtype.storm.util - Async loop interrupted!
1973 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shut down task Getting-Started-Toplogie-1-1404363043:3
1973 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shutting down task Getting-Started-Toplogie-1-1404363043:2
1973 [Thread-22] INFO backtype.storm.util - Async loop interrupted!
-- Word Counter [word-counter-2] --
really: 1
but: 1
application: 1
is: 2
great: 2
are: 1
test: 1
simple: 1
an: 1
powerfull: 1
storm: 3
very: 1
1976 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shut down task Getting-Started-Toplogie-1-1404363043:2
1976 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shutting down task Getting-Started-Toplogie-1-1404363043:1
1976 [Thread-24] INFO backtype.storm.util - Async loop interrupted!
1981 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shut down task Getting-Started-Toplogie-1-1404363043:1
1981 [TopologyMain.main()] INFO backtype.storm.daemon.worker - Terminating zmq context
1981 [TopologyMain.main()] INFO backtype.storm.daemon.worker - Disconnecting from storm cluster state context
1981 [TopologyMain.main()] INFO backtype.storm.daemon.worker - Waiting for heartbeat thread to die
1981 [Thread-27] INFO backtype.storm.util - Async loop interrupted!
1981 [Thread-28] INFO backtype.storm.util - Async loop interrupted!
1981 [Thread-15] INFO backtype.storm.util - Async loop interrupted!
1982 [Thread-14] INFO backtype.storm.event - Event manager interrupted
1983 [TopologyMain.main()] INFO backtype.storm.daemon.worker - Shut down worker Getting-Started-Toplogie-1-1404363043 0dc9916a-36a8-4796-92df-e965b53ae5b0 4
1984 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Shut down 0dc9916a-36a8-4796-92df-e965b53ae5b0:4a5e8f63-d4c0-4dcd-9a02-95edcdd9f4fb
1985 [TopologyMain.main()] INFO backtype.storm.daemon.supervisor - Shutting down supervisor 0dc9916a-36a8-4796-92df-e965b53ae5b0
1985 [Thread-11] INFO backtype.storm.util - Async loop interrupted!
1985 [Thread-12] INFO backtype.storm.util - Async loop interrupted!
1985 [Thread-13] INFO backtype.storm.util - Async loop interrupted!
1986 [Thread-9] INFO backtype.storm.event - Event manager interrupted
1986 [Thread-10] INFO backtype.storm.event - Event manager interrupted
1989 [TopologyMain.main()] INFO backtype.storm.testing - Shutting down in process zookeeper
1990 [TopologyMain.main()] INFO backtype.storm.testing - Done shutting down in process zookeeper
1990 [TopologyMain.main()] INFO backtype.storm.testing - Deleting temporary path /tmp/02c0aa1b-8f89-40db-9631-9e905cea9115
1990 [TopologyMain.main()] INFO backtype.storm.testing - Deleting temporary path /tmp/dbe36a62-a375-40dc-a2a1-32cba2a06fe3
1991 [TopologyMain.main()] INFO backtype.storm.testing - Deleting temporary path /tmp/71c1d996-8a85-44a5-a52a-0538f6318a7f
1991 [TopologyMain.main()] INFO backtype.storm.testing - Deleting temporary path /tmp/451a5c40-29a7-4c9a-b075-17fe26205a36
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.104 s
[INFO] Finished at: 2014-07-03T12:50:46+08:00
[INFO] Final Memory: 16M/38M
[INFO] ------------------------------------------------------------------------
以上是开启一个wordcounter线程时的执行情况，如果将TopologyMain.java中的下面代码改一下：
builder.setBolt("word-counter", new WordCounter(),1).fieldsGrouping("word-normalizer", new Fields("word"));
改成
builder.setBolt("word-counter", new WordCounter(),2).shuffGrouping("word-normalizer");
再重新编译，然后运行，会发现运行结果中会多出一个task线程,结果如下：
893 [Thread-5] INFO com.netflix.curator.framework.imps.CuratorFrameworkImpl - Starting
958 [Thread-5] INFO backtype.storm.daemon.task - Loading task word-reader:5
988 [Thread-5] INFO backtype.storm.daemon.task - Opening spout word-reader:5
988 [Thread-5] INFO backtype.storm.daemon.task - Opened spout word-reader:5
1002 [Thread-5] INFO backtype.storm.daemon.task - Finished loading task word-reader:5
1002 [Thread-18] INFO backtype.storm.daemon.task - Activating spout word-reader:5
1038 [Thread-5] INFO backtype.storm.daemon.task - Loading task word-normalizer:4
1047 [Thread-5] INFO backtype.storm.daemon.task - Preparing bolt word-normalizer:4
1047 [Thread-5] INFO backtype.storm.daemon.task - Prepared bolt word-normalizer:4
1048 [Thread-5] INFO backtype.storm.daemon.task - Finished loading task word-normalizer:4
1049 [Thread-5] INFO backtype.storm.daemon.task - Loading task word-counter:3
1064 [Thread-5] INFO backtype.storm.daemon.task - Preparing bolt word-counter:3
1064 [Thread-5] INFO backtype.storm.daemon.task - Prepared bolt word-counter:3
1071 [Thread-5] INFO backtype.storm.daemon.task - Finished loading task word-counter:3
1072 [Thread-5] INFO backtype.storm.daemon.task - Loading task word-counter:2
1089 [Thread-5] INFO backtype.storm.daemon.task - Preparing bolt word-counter:2
1089 [Thread-5] INFO backtype.storm.daemon.task - Prepared bolt word-counter:2
1091 [Thread-5] INFO backtype.storm.daemon.task - Finished loading task word-counter:2
1093 [Thread-5] INFO backtype.storm.daemon.task - Loading task __acker:1
1105 [Thread-5] INFO backtype.storm.daemon.task - Preparing bolt __acker:1
1109 [Thread-5] INFO backtype.storm.daemon.task - Prepared bolt __acker:1
1115 [Thread-5] INFO backtype.storm.daemon.task - Finished loading task __acker:1
现在多了一个word-counter线程，然后在后面的具体统计时也有变化：
-- Word Counter [word-counter-3] --
really: 1
test: 1
simple: 1
an: 1
powerfull: 1
storm: 2
very: 1
1948 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shut down task Getting-Started-Toplogie-1-1404363178:3
1949 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shutting down task Getting-Started-Toplogie-1-1404363178:2
1949 [Thread-26] INFO backtype.storm.util - Async loop interrupted!
-- Word Counter [word-counter-2] --
application: 1
but: 1
is: 2
great: 2
are: 1
storm: 1
可以看出，上面在最后统计时，使用的是两个wordcounter线程进行统计的，由于使用的是shuffleGrouping的分组形式，所以每个单词被当成一个单独的tuple被随意的扔给其中一个word-counter进程进行统计，所以storm被两个word-counter线程各统计了一部分。
如果希望相同的单词被同一个word-counter线程来统计，则需要使用filedsGrouping，代码如下：
builder.setBolt("word-counter", new WordCounter(),2).fieldsGrouping("word-normalizer",new Fields("word"));
修改后的运行结果如下：
-- Word Counter [word-counter-3] --
application: 1
is: 2
are: 1
test: 1
simple: 1
powerfull: 1
very: 1
2025 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shut down task Getting-Started-Toplogie-1-1404368225:3
2025 [TopologyMain.main()] INFO backtype.storm.daemon.task - Shutting down task Getting-Started-Toplogie-1-1404368225:2
2026 [Thread-26] INFO backtype.storm.util - Async loop interrupted!
-- Word Counter [word-counter-2] --
really: 1
but: 1
great: 2
an: 1
storm: 3
从上面的运行结果可以看出，现在相同的单词都被同一个word-counter线程进行统计了.
public class TopologyMain {
public static void main(String[] args) throws InterruptedException {
//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(),1).fieldsGrouping("word-normalizer", new Fields("word"));
//Configuration
Config conf = new Config();
conf.put("wordsFile", args[0]);
conf.setDebug(false);
//Topology run
conf.put(Config.TOPOLOGY_MAX_SPOUT_PENDING, 1);
LocalCluster cluster = new LocalCluster();
cluster.submitTopology("Getting-Started-Toplogie", conf, builder.createTopology());
Thread.sleep(1000);
cluster.shutdown();
}
}
接下来具体讲解一下，Storm的执行流程：
首先，使用TopologyBuilder builder = new TopologyBuilder(); 创建一个网络拓扑图对象。
然后，使用builder.setSpout("word-reader",new WordReader()); 向网络拓扑图中添加一个获取数据源的节点Spout。它负责从文件中读取文件内容，并将每一行作为了一个元组单元，发送给后面的bolt节点。
然后，再用builder.setBolt("word-normalizer", new WordNormalizer()).shuffleGrouping("word-reader");
向网络拓扑图中添加一个bolt节点，红色部分表示，通过shuffleGrouping方法从组件id为"word-reader"的节点中获取元组，作为本bolt节点的数据源。本bolt的作用是随机的从word-reader这个节点中接收一个元组(一行数据)，然后将这一行数据切分成一个一个的单词。然后将每个单词再作为一个元组发送给后面的bolt进行统计。
然后，再用 builder.setBolt("word-counter", new WordCounter(),1).fieldsGrouping("word-normalizer", new Fields("word")); 再向网络拓扑图中添加一个bolt节点，用于从"word-normalizer"这个组件中接收元组，并按每个单词进行统计，fieldsGrouping("word-normalizer",new Fields("word"))表示，将相同的单词扔给同一个bolt进行统计。
