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Harsh J commented on MAPREDUCE-3678: ------------------------------------ Hi Arun, bq. AFAIK MR1 already shows this in taskdetails.jsp - we need to add this to MR2. But this state is wiped away if the task sets a status. So I don't find it reliable :( bq. Also, AFAIK, I thought MR1 task-logs had this info logged, something I see missing in MR2 also. We do not log this at all. I'll post patches that target both. > The Map tasks logs should have the value of input split it processed > -------------------------------------------------------------------- > > Key: MAPREDUCE-3678 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3678 > Project: Hadoop Map/Reduce > Issue Type: New Feature > Components: nodemanager, tasktracker > Affects Versions: 0.20.203.0, 0.20.205.0, 1.0.0 > Environment: Linux red hat. > Reporter: Bejoy KS > > It would be easier to debug some corner in tasks if we knew what was the > input split processed by that task. Map reduce task tracker log should > accommodate the same. Also in the jobdetails web UI, the split also should be > displayed along with the Split Locations. > Sample as > Input Split > hdfs://myserver:9000/userdata/sampleapp/inputdir/file1.csv - <split > no>/<offset from beginning of file> > This would be much beneficial to nail down some data quality issues in large > data volume processing. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira