Hi, The error is removed now. The reason is hadoop datanode is not started successfully. Now, I have another questions, please give your suggestions: The tests seems hanged now, what should I do to restart e2e test? --Should I regenerate the test data? --Should I do something to hadoop fs? For example: remove some data --Should I restart Hadoop? --Should I run "ant clean"? --Is there any other items I missed?
Thank you. At 2012-02-15 12:53:29,"Alan Gates" <[email protected]> wrote: >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. >
