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From Ken Been <Ken.B...@twosigma.com>
Subject compatibility between new client and old server
Date Wed, 18 Dec 2013 18:45:07 GMT
I am trying to make a 2.2.0 Java client work with a 1.1.2 server.  The error I am currently
getting is below.  I'd like to know if my problem is because I have configured something wrong
or because the versions are simply not compatible for what I want to do.  Thanks in advance
for any help.

Ken

        at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:764)
        at org.apache.hadoop.ipc.Client.call(Client.java:1351)
        at org.apache.hadoop.ipc.Client.call(Client.java:1300)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
        at com.sun.proxy.$Proxy18.getFileInfo(Unknown Source)
        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:601)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
        at com.sun.proxy.$Proxy18.getFileInfo(Unknown Source)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:651)
        at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1679)
        at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1106)
        at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1102)
        at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
       at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1102)
        at my code...
Caused by: java.io.EOFException
        at java.io.DataInputStream.readInt(DataInputStream.java:392)
        at org.apache.hadoop.ipc.Client$Connection.receiveRpcResponse(Client.java:995)
        at org.apache.hadoop.ipc.Client$Connection.run(Client.java:891)

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