That means it isn't connecting correctly to your Hadoop cluster. What version of Hadoop are you using?
Alan. On Feb 14, 2012, at 5:38 PM, lulynn_2008 wrote: > Thank you for your detail. > Most tests failed with following errors, please give your suggestions: > > ERROR 2999: Unexpected internal error. Failed to create DataStorage > 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:58) > at > org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.init(HExecutionEngine.java:214) > at > org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.init(HExecutionEngine.java:134) > at org.apache.pig.impl.PigContext.connect(PigContext.java:183) > at org.apache.pig.PigServer.<init>(PigServer.java:226) > at org.apache.pig.PigServer.<init>(PigServer.java:215) > at org.apache.pig.tools.grunt.Grunt.<init>(Grunt.java:55) > at org.apache.pig.Main.run(Main.java:492) > at org.apache.pig.Main.main(Main.java:107) > Caused by: java.io.IOException: Call to > svltest150.svl.ibm.com/9.30.225.100:9000 failed on local exception: > java.io.EOFException > at org.apache.hadoop.ipc.Client.wrapException(Client.java:775) > at org.apache.hadoop.ipc.Client.call(Client.java:743) > at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220) > at $Proxy0.getProtocolVersion(Unknown Source) > at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359) > at > org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:106) > at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:207) > at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:170) > at > org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:82) > at > org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1378) > at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66) > at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1390) > at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:196) > at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:95) > at > org.apache.pig.backend.hadoop.datastorage.HDataStorage.init(HDataStorage.java:72) > ... 9 more > Caused by: java.io.EOFException > at java.io.DataInputStream.readInt(DataInputStream.java:386) > at > org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:501) > at org.apache.hadoop.ipc.Client$Connection.run(Client.java:446) > > > > > > > At 2012-02-14 22:53:07,"Alan Gates" <[email protected]> wrote: >> >> On Feb 14, 2012, at 6:17 AM, lulynn_2008 wrote: >> >>> Hi, >>> I am doing e2e testing to pig-0.9.1. Here is my reference: >>> https://cwiki.apache.org/confluence/display/PIG/HowToTest >>> Please give your suggestions to following questions: >>> 1. The tests needs a cluster which includes a Name Node/Job Tracker and >>> three for Data Node/Task Trackers. Where is the cluster information saved? >>> Are they saved in hadoop conf files? >> Pig uses the standard Hadoop configuration files (mapred-site.xml, >> core-site.xml, hdfs-site.xml) to find cluster information. If you set >> harness.hadoop.home to the directory where you installed Hadoop when you >> call ant test-e2e (it will fail if you don't) these will automatically get >> picked up. >> >>> 2. I assume the tests need a hadoop cluster environment, and just install >>> pig(low version and pig-0.9.1) and run the test cmds in Name Node.Name >>> Node/Job Tracker to generate test data. Please correct me if I was wrong. >> >> Any machine that has access to the cluster and has Hadoop installed on it >> with the same configuration files as your cluster will work. It need not be >> the NN/JT specifically. But that machine will work fine. >> >>> 3. Is there any data transfer between nodes in clusters during generating >>> test data and testing? If yes, when happened? >> >> Yes, the harness generates data on the machine it's run on and then does a >> copyFromLocal to load it into HDFS. >>> >>> Thank you. >> >> Alan.
