Hello, JT reported that job completed successfully means it job is completed successfully after resubimiting failed task, For jobs which comtains large number of Map and Reducer tasks it's quite common some task are failed from various reason and resubmitted. No need worry for these failure.
On Thu, Apr 25, 2013 at 6:10 PM, Nitin Pawar <[email protected]>wrote: > Failed task can be because the task failed to report to JT or anything. > Did your job finished successfully? > > If not do you have further logs available? > On Apr 25, 2013 5:45 PM, "超级塞亚人" <[email protected]> wrote: > >> Hi everybody, >> I am facing a problem after I ran a 2TB data. It says the job is >> completed but there are 4 failed tasks. Here is the information: >> 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 126. >> at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258) >> >> Does anybody know the reason? >> Thank you very much! >> >> > -- Regards, ..... Sudhakara.st
