问题
I am trying to load data from HDFS to Pig but I am getting error as Failed to create Data Storage. The command that I executed was:
movies = LOAD 'hdfs://localhost:9000/Movie_Lens/ratings' USING PigStorage(':') AS (user_id, dummy1, movie_id, dummy2, movie_rating, dummy3, timestamp);
I tried to find the mentioned problem in stack overflow but the link that I got are not related to HDFS and Pig, they are related to HDFS and HBase or Pig and HBase.
The detail of the log file is mentioned below.
Somewhere in the log file I found this mentioned: Caused by: org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate with client version 4
Pig Stack Trace
ERROR 1200: Failed to create DataStorage
Failed to parse: Failed to create DataStorage
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:201)
at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1707)
at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1680)
at org.apache.pig.PigServer.registerQuery(PigServer.java:623)
at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1082)
at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:505)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:230)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:205)
at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:66)
at org.apache.pig.Main.run(Main.java:565)
at org.apache.pig.Main.main(Main.java:177)
Caused by: java.lang.RuntimeException: Failed to create DataStorage
at org.apache.pig.backend.hadoop.datastorage.HDataStorage.init(HDataStorage.java:75)
at org.apache.pig.backend.hadoop.datastorage.HDataStorage.<init>(HDataStorage.java:53)
at org.apache.pig.builtin.JsonMetadata.findMetaFile(JsonMetadata.java:109)
at org.apache.pig.builtin.JsonMetadata.getSchema(JsonMetadata.java:189)
at org.apache.pig.builtin.PigStorage.getSchema(PigStorage.java:538)
at org.apache.pig.newplan.logical.relational.LOLoad.getSchemaFromMetaData(LOLoad.java:175)
at org.apache.pig.newplan.logical.relational.LOLoad.<init>(LOLoad.java:89)
at org.apache.pig.parser.LogicalPlanBuilder.buildLoadOp(LogicalPlanBuilder.java:901)
at org.apache.pig.parser.LogicalPlanGenerator.load_clause(LogicalPlanGenerator.java:3568)
at org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1625)
at org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:1102)
at org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:560)
at org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:421)
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:191)
... 10 more
Caused by: org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate with client version 4
at org.apache.hadoop.ipc.Client.call(Client.java:1070)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
at com.sun.proxy.$Proxy4.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.<init>(DFSClient.java:238)
at org.apache.hadoop.hdfs.DFSClient.<init>(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.pig.backend.hadoop.datastorage.HDataStorage.init(HDataStorage.java:70)
... 23 more
To solve this problem I tried doing 'ant' so when I run the command
bash ant -version
in ant bin folder it is working but when I am running the command
bash ant clean jar-all -Dhadoopversion=23
in bin folder it is not working. In some of the links I found that new version of pig does not have jar-all command so I tried the following command
bash ant clean jar -Dhadoopversion=23
and this command is also not working.
来源：https://stackoverflow.com/questions/34254404/getting-error-as-failed-to-create-data-storage-when-trying-to-load-the-data-from