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https://issues.apache.org/jira/browse/KAFKA-3326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182774#comment-15182774
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iyaozhen commented on KAFKA-3326:
---------------------------------

Oh no. It is my problem.

MD5 (kafka_2.11-0.9.0.1.tgz) = dfc0601ad7bb815e21e1697bc2d8c967 But 
https://dist.apache.org/repos/dist/release/kafka/0.9.0.1/kafka_2.11-0.9.0.1.tgz.md5
 is 'B71E5CBC78165C1CA483279C27402663'.

> Error: A JNI error has occurred, please check your installation and try again
> -----------------------------------------------------------------------------
>
>                 Key: KAFKA-3326
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3326
>             Project: Kafka
>          Issue Type: Bug
>          Components: config
>    Affects Versions: 0.9.0.1
>            Reporter: iyaozhen
>
> I use kafka start at 
> doc(http://kafka.apache.org/documentation.html#quickstart):
> [kafka_2.11-0.9.0.1] bin/kafka-server-start.sh config/server.properties
> Error: A JNI error has occurred, please check your installation and try again
> Exception in thread "main" java.lang.NoClassDefFoundError: 
> org/apache/log4j/Logger
>       at java.lang.Class.getDeclaredMethods0(Native Method)
>       at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
>       at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
>       at java.lang.Class.getMethod0(Class.java:3018)
>       at java.lang.Class.getMethod(Class.java:1784)
>       at 
> sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
>       at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
> Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger
>       at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
>       at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
>       at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
>       at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
>       ... 7 more
> java -version
> java version "1.8.0_66"
> Java(TM) SE Runtime Environment (build 1.8.0_66-b17)
> Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)
> echo $CLASSPATH
> .:/home/work/yaozhen/jdk1.8.0_66/lib/dt.jar:/home/work/yaozhen/jdk1.8.0_66/lib/tools.jar
> My JAVA is poor, I am no idea to resolve it.



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