All, This a follow up to my last post.
Turns out there was yet another hadoop cluster available running Ubuntu 10.10 on identical hardware to what i was using in may last post. The difference is between the two versions of Ubuntu: 10.10 vs 11.10. All else is equal. Things work on 10.10. Things do not work on 11.10. I can't explain. I'm not going to try. I'm rolling back to 10.10 for my project. On 8 February 2012 13:45, Geoffry Roberts <geoffry.robe...@gmail.com> wrote: > All, > > I am setting up a new cluster on some new machines and am experiencing > errors that did not happen before. I am using the same Hadoop-1.0 with the > same configuration, and the same jvm on both machines. The thing that is > different is the OS. The old cluster was Ubuntu 10.10 and the new is Ubuntu > 11.10. > > Since the OS seems to be the difference, are there any issues with > Hadoop-1.0 and Ubuntu 11.10? > > Also, I remember at one time Hadoop having troubles with ipv6. Do I still > need to disable it? > > The same job runs on the old but not on the new. > > Error message is below. > > Thanks > > 12/02/08 13:29:39 INFO mapred.JobClient: map 0% reduce 0% > 12/02/08 13:29:46 INFO mapred.JobClient: Task Id : > attempt_201202081216_0003_m_ > 000099_0, Status : FAILED > java.lang.Throwable: Child Error > at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271) > Caused by: java.io.IOException: Task process exit with nonzero status of 1. > at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258) > > 12/02/08 13:29:46 WARN mapred.JobClient: Error reading task > outputhttp://q001q:50060/tasklog?plaintext=true&attemptid=attempt_201202081216_0003_m_000099_0&filter=stdout > 12/02/08 13:29:46 WARN mapred.JobClient: Error reading task > outputhttp://q001q:50060/tasklog?plaintext=true&attemptid=attempt_201202081216_0003_m_000099_0&filter=stderr > 12/02/08 13:29:52 INFO mapred.JobClient: Task Id : > attempt_201202081216_0003_r_000011_0, Status : FAILED > java.lang.Throwable: Child Error > at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271) > Caused by: java.io.IOException: Task process exit with nonzero status of 1. > at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258) > > > -- > Geoffry Roberts > > -- Geoffry Roberts
