Hi Lucian, Sounds like you didn't configure MapReduce to run on top of HDFS? If you want to run on a distributed cluster, you need a distributed file system set up as well.
-Todd On Mon, May 16, 2011 at 8:31 AM, Lucian Iordache < [email protected]> wrote: > Hello, > > I have a Hadoop/Hbase cluster, cloudera cdh3u0 version, with several > machines. I've created a job that does some work using the information from > a HBase table. > > The next example *works* fine: > - start JobTracker > - start TaskTracker *on the same machine* as the JobTracker > - run the job > - the job completes successfully > > The next example *does not work*: > - start JobTracker > - start TaskTracker *on another machine* (not the same as the JobTracker) > - run the job > - I get the next error in the console: > 11/04/21 12:21:01 INFO mapred.JobClient: Running job: job_201104201820_0007 > 11/04/21 12:21:02 INFO mapred.JobClient: map 0% reduce 0% > 11/04/21 12:21:02 INFO mapred.JobClient: Task Id : > attempt_201104201820_0007_m_000002_0, Status : FAILED > Error initializing attempt_201104201820_0007_m_000002_0: > java.io.FileNotFoundException: File > file:/var/ui/hadoop/mapred/system/job_201104201820_0007/jobToken does not > exist. > at > org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:383) > at > org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:251) > at > org.apache.hadoop.mapred.TaskTracker.localizeJobTokenFile(TaskTracker.java:4033) > at > org.apache.hadoop.mapred.TaskTracker.initializeJob(TaskTracker.java:1148) > at org.apache.hadoop.mapred.TaskTracker.localizeJob(TaskTracker.java:1089) > at org.apache.hadoop.mapred.TaskTracker.startNewTask(TaskTracker.java:2257) > at > org.apache.hadoop.mapred.TaskTracker$TaskLauncher.run(TaskTracker.java:2221) > 11/04/21 12:21:02 WARN mapred.JobClient: Error reading task outputhttp:// > cene.ro.schlund.net:50060/tasklog?plaintext=true&attemptid=attempt_201104201820_0007_m_000002_0&filter=stdout > 11/04/21 12:21:02 WARN mapred.JobClient: Error reading task outputhttp:// > cene.ro.schlund.net:50060/tasklog?plaintext=true&attemptid=attempt_201104201820_0007_m_000002_0&filter=stderr > 11/04/21 12:21:02 INFO mapred.JobClient: Task Id : > attempt_201104201820_0007_r_000002_0, Status : FAILED > > Can you help me with this problem? > > Best Regards, > Lucian > -- Todd Lipcon Software Engineer, Cloudera
