or https://issues.apache.org/jira/browse/MAPREDUCE-4857 Which is fixed in 1.0.4
From: Amit Sela [mailto:[email protected]] Sent: Tuesday, March 12, 2013 5:08 AM To: [email protected] Subject: Re: Child error Hi Jean-Marc, I am running Hadoop 1.0.3, and I did see this issue you've mentioned but the exit status in the issue is 126 and sometimes I get 255. Any ideas what do theses status codes mean ? Did you suffer this issue and upgraded to 1.0.4 ? If so, How "smooth" is such upgrade (shouldn't differ from 1.0.3 that much no ?) Thanks! On Tue, Mar 12, 2013 at 1:40 PM, Jean-Marc Spaggiari <[email protected]<mailto:[email protected]>> wrote: Hi Amit, Which Hadoop version are you using? I have been told it's because of https://issues.apache.org/jira/browse/MAPREDUCE-2374 JM 2013/3/12 Amit Sela <[email protected]<mailto:[email protected]>>: > Hi all, > > I have a weird failure occurring every now and then during a MapReduce job. > > This is the error: > > 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 > 255. > at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258) > > And sometimes it's the same but with status of 126. > > Any ideas ? > > Thanks.
