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via JIRA by Haoyuan Li [Administrator], 1 year ago
Server IPC version 7 cannot communicate with client version 4
via JIRA by Haoyuan Li [Administrator], 2 years ago
Server IPC version 7 cannot communicate with client version 4
via Google Groups by David Rosenstrauch, 11 months ago
Server IPC version 9 cannot communicate with client version 4
via Google Groups by shibo tao, 11 months ago
Server IPC version 9 cannot communicate with client version 4
org.apache.hadoop.ipc.RemoteException: Server IPC version 7
cannot communicate with client version 4	at org.apache.hadoop.ipc.Client.call(Client.java:1070)	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:119)	at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:238)	at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:203)	at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386)	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404)	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)	at org.apache.hadoop.fs.Path.getFileSystem(Path.java:187)	at tachyon.UnderFileSystemHdfs.(UnderFileSystemHdfs.java:69)	at tachyon.UnderFileSystemHdfs.getClient(UnderFileSystemHdfs.java:53)	at tachyon.UnderFileSystem.get(UnderFileSystem.java:53)	at tachyon.Format.main(Format.java:47)