我正在使用hadoop2.7.0和javaoraclejdk1.7.0\u79以及netbeanside8.0.2。当我尝试使用java文件与hadoop通信时,出现以下错误。是否涉及依赖性问题?或者如何解决此错误?
我看到过相关的帖子,但没有一个能帮助我清楚地传达答案。所以,请帮帮我。谢谢!
Exception in thread "main" org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate with client version 4
at org.apache.hadoop.ipc.Client.call(Client.java:1066)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
at com.sun.proxy.$Proxy1.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)
at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:118)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:222)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:187)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1328)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:65)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1346)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:244)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:187)
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.setInputPaths(FileInputFormat.java:352)
at pir.PIR.run(PIR.java:317)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at pir.PIR.main(PIR.java:256)
1条答案
按热度按时间14ifxucb1#
如果您使用的是maven,那么请检查pom文件中包含的hadoop客户端的版本。它可能比集群上当前运行hadoop的版本旧(应该是2.7.0)