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MapReduce, mail # user - DFSClient throws IncompatibleClassChangeError


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DFSClient throws IncompatibleClassChangeError
Rob Blah 2013-08-20, 19:42
Hi

When I am trying to use DFSClient it throws the following exception:
java.lang.IncompatibleClassChangeError: class
com.google.common.cache.CacheBuilder$3 has interface
com.google.common.base.Ticker as super class
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at com.google.common.cache.CacheBuilder.<clinit>(CacheBuilder.java:190)
    at
org.apache.hadoop.hdfs.DomainSocketFactory.<init>(DomainSocketFactory.java:45)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:494)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:449)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:439)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:430)
    at
org.my.appMaster.mock.Child_MOCK.initializeLocalData(Child_MOCK.java:75)
    at org.my.appMaster.mock.Child_MOCK.main(Child_MOCK.java:188)

I am instantiating DFSClient as such:
DFSClient dfsClient = new DFSClient(new InetSocketAddress(this.NN_Host,
this.NN_Port), new HdfsConfiguration(true));

NN data is set properly.

I have checked all my export environment variables and the only guava
version is YARN-dist/share/hadoop/common/lib/guava-11.0.2.jar. Also in the
runtime classpath (System.getProperty("java.class.path");) only guava-11 is
present.

Any ideas?

regards
tmp