您好我正在运行拓扑并使用风暴信号一次又一次地向拓扑发送消息。但我在日志文件中收到错误。
ClassDefNotFound：backtype.storm.contrib.signals.spout.BaseSignalSpout
任何人都可以告诉我为什么无法找到班级的原因吗？
更新：代码文件已更新
我的Spout课程：
@SuppressWarnings("serial")
public class NumberSpout extends BaseSignalSpout
{
public NumberSpout(String name) {
super(name);
// TODO Auto-generated constructor stub
}
private static final Logger LOGGER = Logger.getLogger(NumberSpout.class);
@SuppressWarnings("rawtypes")
@Override
public void open( Map conf, TopologyContext context, SpoutOutputCollector collector )
{ super.open(conf, context, collector);
LOGGER.info("In open method of spout");
}
@Override
public void nextTuple()
{
}
@Override
public void ack(Object id)
{
}
@Override
public void fail(Object id)
{
}
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer)
{
declarer.declare( new Fields( "name" ) );
}
@Override
public void onSignal(byte[] data) {
LOGGER.info("Received signal: " + new String(data));
}
}
我的Toplogy类：
public class PrimeNumberTopology
{
private static final Logger LOGGER = Logger.getLogger(PrimeNumberTopology.class);
public static void load(){
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout( "signal-spout", new NumberSpout("test-signal-spout"));
Config conf = new Config();
conf.put(Config.NIMBUS_HOST, "127.0.0.1");
conf.setDebug(true);
Map storm_conf = Utils.readStormConfig();
storm_conf.put("nimbus.host", "127.0.0.1");
Client client = NimbusClient.getConfiguredClient(storm_conf)
.getClient();
String inputJar = "/home/jamil/Downloads/storm-twitter-word-count-master/target/storm-test-1.0-SNAPSHOT.jar";
NimbusClient nimbus = new NimbusClient("127.0.0.1",6627);
// upload topology jar to Cluster using StormSubmitter
String uploadedJarLocation = StormSubmitter.submitJar(storm_conf,
inputJar);
try {
String jsonConf = JSONValue.toJSONString(storm_conf);
nimbus.getClient().submitTopology("test1topology",
uploadedJarLocation, jsonConf, builder.createTopology());
} catch (AlreadyAliveException ae) {
ae.printStackTrace();
} catch (InvalidTopologyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (TException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void main(String[] args)
{
load();
/*SignalClient sc = new SignalClient("localhost:2181", "test-signal-spout");
sc.start();
try {
sc.send("Hello Signal Spout!".getBytes());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
sc.close();
}*/
}
}
我的Pom.xml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>com.storm</groupId>
<artifactId>storm-test</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>storm-test</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>com.storm.PrimeNumberTopology</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.ptgoetz</groupId>
<artifactId>storm-signals</artifactId>
<version>0.2.0</version>
</dependency>
<dependency>
<groupId>storm</groupId>
<artifactId>storm-lib</artifactId>
<version>0.8.1</version>
<!-- keep storm out of the jar-with-dependencies <scope>provided</scope> -->
</dependency>
</dependencies>
<repositories>
<repository>
<id>github-releases</id>
<url>http://oss.sonatype.org/content/repositories/github-releases/</url>
</repository>
<repository>
<id>clojars.org</id>
<url>http://clojars.org/repo</url>
</repository>
</repositories>
</project>
我的错误日志文件：
2014-10-26 19:45:19 b.s.d.worker [ERROR] Error on initialization of server mk-worker
java.lang.NoClassDefFoundError: backtype/storm/contrib/signals/spout/BaseSignalSpout
at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.6.0_32]
at java.lang.ClassLoader.defineClass(ClassLoader.java:643) ~[na:1.6.0_32]
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.6.0_32]
at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) ~[na:1.6.0_32]
at java.net.URLClassLoader.access$000(URLClassLoader.java:73) ~[na:1.6.0_32]
at java.net.URLClassLoader$1.run(URLClassLoader.java:212) ~[na:1.6.0_32]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.6.0_32]
at java.net.URLClassLoader.findClass(URLClassLoader.java:205) ~[na:1.6.0_32]
at java.lang.ClassLoader.loadClass(ClassLoader.java:323) ~[na:1.6.0_32]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) ~[na:1.6.0_32]
at java.lang.ClassLoader.loadClass(ClassLoader.java:268) ~[na:1.6.0_32]
at java.lang.Class.forName0(Native Method) ~[na:1.6.0_32]
at java.lang.Class.forName(Class.java:270) ~[na:1.6.0_32]
at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:624) ~[na:1.6.0_32]
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1611) ~[na:1.6.0_32]
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1516) ~[na:1.6.0_32]
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770) ~[na:1.6.0_32]
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1349) ~[na:1.6.0_32]
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369) ~[na:1.6.0_32]
at backtype.storm.utils.Utils.deserialize(Utils.java:82) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.utils.Utils.getSetComponentObject(Utils.java:218) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.task$get_task_object.invoke(task.clj:73) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.task$mk_task_data$fn__3402.invoke(task.clj:180) ~[na:na]
at backtype.storm.util$assoc_apply_self.invoke(util.clj:792) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.task$mk_task_data.invoke(task.clj:173) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.task$mk_task.invoke(task.clj:184) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.executor$mk_executor$fn__3785.invoke(executor.clj:320) ~[na:na]
at clojure.core$map$fn__4087.invoke(core.clj:2432) ~[clojure-1.4.0.jar:na]
at clojure.lang.LazySeq.sval(LazySeq.java:42) ~[clojure-1.4.0.jar:na]
at clojure.lang.LazySeq.seq(LazySeq.java:60) ~[clojure-1.4.0.jar:na]
at clojure.lang.RT.seq(RT.java:473) ~[clojure-1.4.0.jar:na]
at clojure.core$seq.invoke(core.clj:133) ~[clojure-1.4.0.jar:na]
at clojure.core.protocols$seq_reduce.invoke(protocols.clj:30) ~[clojure-1.4.0.jar:na]
at clojure.core.protocols$fn__5875.invoke(protocols.clj:54) ~[clojure-1.4.0.jar:na]
at clojure.core.protocols$fn__5828$G__5823__5841.invoke(protocols.clj:13) ~[clojure-1.4.0.jar:na]
at clojure.core$reduce.invoke(core.clj:6030) ~[clojure-1.4.0.jar:na]
at clojure.core$into.invoke(core.clj:6077) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.executor$mk_executor.invoke(executor.clj:320) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.worker$eval4413$exec_fn__1102__auto____4414$iter__4419__4423$fn__4424.invoke(worker.clj:375) ~[na:na]
at clojure.lang.LazySeq.sval(LazySeq.java:42) ~[clojure-1.4.0.jar:na]
at clojure.lang.LazySeq.seq(LazySeq.java:60) ~[clojure-1.4.0.jar:na]
at clojure.lang.RT.seq(RT.java:473) ~[clojure-1.4.0.jar:na]
at clojure.core$seq.invoke(core.clj:133) ~[clojure-1.4.0.jar:na]
at clojure.core$dorun.invoke(core.clj:2725) ~[clojure-1.4.0.jar:na]
at clojure.core$doall.invoke(core.clj:2741) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.worker$eval4413$exec_fn__1102__auto____4414.invoke(worker.clj:375) ~[na:na]
at clojure.lang.AFn.applyToHelper(AFn.java:185) ~[clojure-1.4.0.jar:na]
at clojure.lang.AFn.applyTo(AFn.java:151) ~[clojure-1.4.0.jar:na]
at clojure.core$apply.invoke(core.clj:601) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.worker$eval4413$mk_worker__4469.doInvoke(worker.clj:344) ~[na:na]
at clojure.lang.RestFn.invoke(RestFn.java:512) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.worker$_main.invoke(worker.clj:454) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at clojure.lang.AFn.applyToHelper(AFn.java:172) ~[clojure-1.4.0.jar:na]
at clojure.lang.AFn.applyTo(AFn.java:151) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.worker.main(Unknown Source) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
Caused by: java.lang.ClassNotFoundException: backtype.storm.contrib.signals.spout.BaseSignalSpout
at java.net.URLClassLoader$1.run(URLClassLoader.java:217) ~[na:1.6.0_32]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.6.0_32]
at java.net.URLClassLoader.findClass(URLClassLoader.java:205) ~[na:1.6.0_32]
at java.lang.ClassLoader.loadClass(ClassLoader.java:323) ~[na:1.6.0_32]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) ~[na:1.6.0_32]
at java.lang.ClassLoader.loadClass(ClassLoader.java:268) ~[na:1.6.0_32]
... 55 common frames omitted
2014-10-26 19:45:19 b.s.util [INFO] Halting process: ("Error on initialization")
GAS更新后出现新错误：
java.lang.RuntimeException: Fail to construct messaging plugin from plugin backtype.storm.messaging.zmq
at backtype.storm.messaging.TransportFactory.makeContext(TransportFactory.java:53) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.worker$worker_data$fn__4263.invoke(worker.clj:185) ~[na:na]
at backtype.storm.util$assoc_apply_self.invoke(util.clj:792) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.worker$worker_data.invoke(worker.clj:181) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at backtype.storm.daemon.worker$eval4413$exec_fn__1102__auto____4414.invoke(worker.clj:353) ~[na:na]
at clojure.lang.AFn.applyToHelper(AFn.java:185) ~[clojure-1.4.0.jar:na]
at clojure.lang.AFn.applyTo(AFn.java:151) ~[clojure-1.4.0.jar:na]
at clojure.core$apply.invoke(core.clj:601) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.worker$eval4413$mk_worker__4469.doInvoke(worker.clj:344) ~[na:na]
at clojure.lang.RestFn.invoke(RestFn.java:512) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.worker$_main.invoke(worker.clj:454) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
at clojure.lang.AFn.applyToHelper(AFn.java:172) ~[clojure-1.4.0.jar:na]
at clojure.lang.AFn.applyTo(AFn.java:151) ~[clojure-1.4.0.jar:na]
at backtype.storm.daemon.worker.main(Unknown Source) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
Caused by: java.lang.ClassNotFoundException: backtype.storm.messaging.zmq
at java.net.URLClassLoader$1.run(URLClassLoader.java:217) ~[na:1.6.0_32]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.6.0_32]
at java.net.URLClassLoader.findClass(URLClassLoader.java:205) ~[na:1.6.0_32]
at java.lang.ClassLoader.loadClass(ClassLoader.java:323) ~[na:1.6.0_32]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) ~[na:1.6.0_32]
at java.lang.ClassLoader.loadClass(ClassLoader.java:268) ~[na:1.6.0_32]
at java.lang.Class.forName0(Native Method) ~[na:1.6.0_32]
at java.lang.Class.forName(Class.java:190) ~[na:1.6.0_32]
at backtype.storm.messaging.TransportFactory.makeContext(TransportFactory.java:38) ~[storm-core-0.9.1-incubating.jar:0.9.1-incubating]
... 13 common frames omitted
2014-10-27 02:19:06 b.s.util [INFO] Halting process: ("Error on initialization")
答案 0 :(得分：3)
我试过你的代码，
问题是你的jar无法加载库，我在maven文件（pom.xml）上添加了这个：
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>PrimeNumberTopology</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
然后，当您可以阅读POM.xml时，我从jar-with-dependencies删除了风暴库（当您部署jar时，您必须将storm-lib移除到您的jar中）
<dependency>
<groupId>storm</groupId>
<artifactId>storm-lib</artifactId>
<version>0.9.0</version>
<scope>provided</scope> <---- added this,that exclude from the jar-with-dependencies
<!-- keep storm out of the jar-with-dependencies <scope></scope> -->
</dependency>
这样你的jar只包含你的代码和风暴信号罐。
我执行了：
storm jar /Projects/StackTest897/target/storm-test-1.0-SNAPSHOT-jar-with-dependencies.jar PrimeNumberTopology
我使用0.9.0更新了风暴库，因为我使用的是最后一个版本，而且你的代码不能在这里编译：
NimbusClient("127.0.0.1",6627);
只需修复它，或者只是使用您的环境，它应该可以正常工作。
希望它有所帮助。
**编辑****
是的，这是另一种问题，这取决于您正在运行的Storm的版本。
或 这里：