构建Storm时Zookeeper的ClassNotFoundException

Question

我是java和Storm的新手所以请原谅任何明显的错误。 我正试图用水槽连接器进行暴风雨 但它崩溃了以下错误：

java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:297)
    at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.ExceptionInInitializerError
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:270)
    at clojure.lang.RT.loadClassForName(RT.java:2056)
    at clojure.lang.RT.load(RT.java:419)
    at clojure.lang.RT.load(RT.java:400)
    at clojure.core$load$fn__4890.invoke(core.clj:5415)
    at clojure.core$load.doInvoke(core.clj:5414)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.core$load_one.invoke(core.clj:5227)
    at clojure.core$load_lib.doInvoke(core.clj:5264)
    at clojure.lang.RestFn.applyTo(RestFn.java:142)
    at clojure.core$apply.invoke(core.clj:603)
    at clojure.core$load_libs.doInvoke(core.clj:5302)
    at clojure.lang.RestFn.applyTo(RestFn.java:137)
    at clojure.core$apply.invoke(core.clj:603)
    at clojure.core$require.doInvoke(core.clj:5381)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at backtype.storm.cluster$loading__4784__auto__.invoke(cluster.clj:1)
    at backtype.storm.cluster__init.load(Unknown Source)
    at backtype.storm.cluster__init.<clinit>(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:270)
    at clojure.lang.RT.loadClassForName(RT.java:2056)
    at clojure.lang.RT.load(RT.java:419)
    at clojure.lang.RT.load(RT.java:400)
    at clojure.core$load$fn__4890.invoke(core.clj:5415)
    at clojure.core$load.doInvoke(core.clj:5414)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.core$load_one.invoke(core.clj:5227)
    at clojure.core$load_lib.doInvoke(core.clj:5264)
    at clojure.lang.RestFn.applyTo(RestFn.java:142)
    at clojure.core$apply.invoke(core.clj:603)
    at clojure.core$load_libs.doInvoke(core.clj:5302)
    at clojure.lang.RestFn.applyTo(RestFn.java:137)
    at clojure.core$apply.invoke(core.clj:603)
    at clojure.core$require.doInvoke(core.clj:5381)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at backtype.storm.daemon.nimbus__init.load(Unknown Source)
    at backtype.storm.daemon.nimbus__init.<clinit>(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:270)
    at clojure.lang.RT.loadClassForName(RT.java:2056)
    at clojure.lang.RT.load(RT.java:419)
    at clojure.lang.RT.load(RT.java:400)
    at clojure.core$load$fn__4890.invoke(core.clj:5415)
    at clojure.core$load.doInvoke(core.clj:5414)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.core$load_one.invoke(core.clj:5227)
    at clojure.core$load_lib.doInvoke(core.clj:5264)
    at clojure.lang.RestFn.applyTo(RestFn.java:142)
    at clojure.core$apply.invoke(core.clj:603)
    at clojure.core$load_libs.doInvoke(core.clj:5302)
    at clojure.lang.RestFn.applyTo(RestFn.java:137)
    at clojure.core$apply.invoke(core.clj:603)
    at clojure.core$require.doInvoke(core.clj:5381)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at backtype.storm.testing$loading__4784__auto__.invoke(testing.clj:1)
    at backtype.storm.testing__init.load(Unknown Source)
    at backtype.storm.testing__init.<clinit>(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:270)
    at clojure.lang.RT.loadClassForName(RT.java:2056)
    at clojure.lang.RT.load(RT.java:419)
    at clojure.lang.RT.load(RT.java:400)
    at clojure.core$load$fn__4890.invoke(core.clj:5415)
    at clojure.core$load.doInvoke(core.clj:5414)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.core$load_one.invoke(core.clj:5227)
    at clojure.core$load_lib.doInvoke(core.clj:5264)
    at clojure.lang.RestFn.applyTo(RestFn.java:142)
    at clojure.core$apply.invoke(core.clj:603)
    at clojure.core$load_libs.doInvoke(core.clj:5302)
    at clojure.lang.RestFn.applyTo(RestFn.java:137)
    at clojure.core$apply.invoke(core.clj:605)
    at clojure.core$use.doInvoke(core.clj:5392)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at backtype.storm.LocalCluster$loading__4784__auto__.invoke(LocalCluster.clj:1)
    at backtype.storm.LocalCluster__init.load(Unknown Source)
    at backtype.storm.LocalCluster__init.<clinit>(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:270)
    at clojure.lang.RT.loadClassForName(RT.java:2056)
    at clojure.lang.RT.load(RT.java:419)
    at clojure.lang.RT.load(RT.java:400)
    at clojure.core$load$fn__4890.invoke(core.clj:5415)
    at clojure.core$load.doInvoke(core.clj:5414)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.lang.Var.invoke(Var.java:415)
    at backtype.storm.LocalCluster.<clinit>(Unknown Source)
    at com.storm.WordCountTopology.main(WordCountTopology.java:97)
    ... 6 more
Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.server.NIOServerCnxn$Factory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:190)
    at backtype.storm.zookeeper$loading__4784__auto__.invoke(zookeeper.clj:1)
    at backtype.storm.zookeeper__init.load(Unknown Source)
    at backtype.storm.zookeeper__init.<clinit>(Unknown Source)
    ... 96 more

我的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>com.storm</groupId>
    <artifactId>my-storm</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>my-storm</name>
    <url>http://maven.apache.org</url>
    <properties>
        <flume.version>1.3.0-cdh4.2.1</flume.version>
        <hadoop.version>2.0.0-cdh4.2.1</hadoop.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <repositories>
        <repository>
            <id>clojars.org</id>
            <url>http://clojars.org/repo</url>
        </repository>
        <repository>
            <id>cdh-maven-repo</id>
            <name>CDH Maven Repository</name>
            <url>https://repository.cloudera.com/content/repositories/releases/</url>
        </repository>
    </repositories> 
    <dependencies>
        <dependency>
            <groupId>storm</groupId>
            <artifactId>storm</artifactId>
            <version>0.8.2</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.flume</groupId>
            <artifactId>flume-ng-embedded-agent</artifactId>
            <version>${flume.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flume</groupId>
            <artifactId>flume-ng-core</artifactId>
            <version>${flume.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                        <artifactId>slf4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apache.flume</groupId>
            <artifactId>flume-ng-configuration</artifactId>
            <version>${flume.version}</version>
        </dependency>
            <dependency>
                <groupId>org.apache.flume</groupId>
                <artifactId>flume-ng-node</artifactId>
                <version>${flume.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.hadoop</groupId>
                <artifactId>hadoop-common</artifactId>
                <version>${hadoop.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>3.4.5</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>1.5.8</version>
            </dependency>
        </dependencies>
       <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>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-release-plugin</artifactId>
                <version>2.0-beta-9</version>
            </plugin>
        </plugins>
    </build>
</project>



 $uname -a :Linux 2.6.32-358.23.2.el6.x86_64 #1 SMP Thu Oct 17 10:27:22 CEST 2013 x86_64 x86_64 x86_64 GNU/Linux
    $locate zookeeper
       .m2/repository/org/apache/zookeeper/zookeeper/3.4.5-cdh4.2.1/zookeeper-3.4.5-cdh4.2.1.pom

你能解释一下我错过了什么吗？

Answer 1

似乎关键在于：

Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.server.NIOServerCnxn$Factory

这似乎是由使用3.4.5的版本zookeeper引起的。您是否尝试过降级，可能是版本3.3.6？

分支-3.3包含内部类NIOServerCnxn$Factory但分支-3.4包含NIOServerCnxnFactory而不是

Answer 2

似乎最后的jar丢失了zookeeper。尝试添加：

   <dependency>
        <groupId>org.apache.flume</groupId>
        <artifactId>flume-ng-core</artifactId>
        <version>${flume.version}</version>
        <exclusions>
            <exclusion>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-api</artifactId>
            </exclusion>
        </exclusions>
    </dependency>


<dependency>
  <groupId>org.apache.zookeeper</groupId>
  <artifactId>zookeeper</artifactId>
  <version>3.4.5</version>
  <scope>test</scope>
</dependency>
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-log4j12</artifactId>
  <version>1.5.8</version>
</dependency> 

到你的pom.xml。

如果没有帮助问题：

mvn dependency:tree

并向我发送输出。

Answer 3

以下POM适合我 -

<dependencies>
    <dependency>
        <groupId>org.apache.zookeeper</groupId>
        <artifactId>zookeeper</artifactId>
        <version>3.4.5</version>
        <exclusions>
            <exclusion>
                <groupId>com.sun.jmx</groupId>
                <artifactId>jmxri</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.sun.jdmk</groupId>
                <artifactId>jmxtools</artifactId>
            </exclusion>
            <exclusion>
                <groupId>javax.jms</groupId>
                <artifactId>jms</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.storm</groupId>
        <artifactId>storm-kafka</artifactId>
        <version>0.9.3</version>
        <exclusions>
            <exclusion>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
            </exclusion>
            <exclusion>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.kafka</groupId>
        <artifactId>kafka_2.10</artifactId>
        <version>0.8.2.0</version>
        <exclusions>
            <exclusion>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
            </exclusion>
            <exclusion>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.storm</groupId>
        <artifactId>storm-core</artifactId>
        <version>0.9.3</version>
        <exclusions>
            <exclusion>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
            </exclusion>
            <exclusion>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.espertech</groupId>
        <artifactId>esper</artifactId>
        <version>4.11.0</version>
        <exclusions>
            <exclusion>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
            </exclusion>
            <exclusion>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>net.sf.opencsv</groupId>
        <artifactId>opencsv</artifactId>
        <version>2.3</version>
    </dependency>
</dependencies>

Answer 4

我也面临同样的问题，我在案例中注意到的问题是： 我使用storm-9.0.1和Zookeeper 3.4.5。

通过将我的zookeeper更改为3.3.6或将风暴更改为9.0.2，我的问题已经解决了。

所以Storm-9.0.1与Zookeeper 3.3.6兼容，Storm 9.0.2与Zookeeper 3.4.5兼容

Answer 5

经过几天的敲击，我决定改变方法，显然Eclipse可以运行项目，因为它没有任何问题。

从eclipse创建一个uberjar并将所有引用的jar放在项目的lib文件夹中，然后使用java -jar在服务器中运行uberjar解决了这个问题。

不是一个好的解决方案而且我从未理解为什么maven无法运行该项目但它有效。