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[MAPREDUCE-2264] Job status exceeds 100% in some cases - MapReduce - [issue]
...I'm looking now at my jobtracker's list of running reduce tasks. One of them is 120.05% complete, the other is 107.28% complete.I understand that these numbers are estimates, but there is no...
http://issues.apache.org/jira/browse/MAPREDUCE-2264    Author: Adam Kramer , 2014-07-17, 17:55
[MAPREDUCE-3244] Make nodes fail/succeed based on return codes (regardless of pending data) - MapReduce - [issue]
...If I were to run a MR job with a script like 'head -n10' for some reason, each node would execute head -n10 (good), and output 10 rows (good) and then the 'head' program would return success...
http://issues.apache.org/jira/browse/MAPREDUCE-3244    Author: Adam Kramer , 2011-10-22, 00:58
[MAPREDUCE-2857] When reducers are complete, trailing mappers delay job completion - MapReduce - [issue]
...Sometimes, mappers restart themselves for some reason (there are several reasons, for example, because it has lost access to the data it generated which a reducer may later need.). However, ...
http://issues.apache.org/jira/browse/MAPREDUCE-2857    Author: Adam Kramer , 2011-08-18, 18:38
[MAPREDUCE-2731] Jobtracker should report 99% until the query is done. - MapReduce - [issue]
...Hadoop reporting 100% complete is a lie whenever the job, task, or node is not FULLY complete. Reports of 100% due to rounding should get explicitly stuck at 99.99% until the job is complete...
http://issues.apache.org/jira/browse/MAPREDUCE-2731    Author: Adam Kramer , 2011-07-27, 00:03
[MAPREDUCE-2210] Preemption does not obey job priority - MapReduce - [issue]
...Preemption, as it currently works, kills running tasks that are "unfair" in terms of the amount of task attention used by one job compared to another.The bug is that pre-emption occurs such ...
http://issues.apache.org/jira/browse/MAPREDUCE-2210    Author: Adam Kramer , 2011-02-07, 23:23
[MAPREDUCE-1924] Mappers running when reducers have finished - MapReduce - [issue]
...Occasionally, I will run jobs for which some reducers are able to finish but there are still mappers running. I understand why sometimes mappers restart themselves even after the reduce phas...
http://issues.apache.org/jira/browse/MAPREDUCE-1924    Author: Adam Kramer , 2010-08-13, 23:19
[MAPREDUCE-1750] Make #rows avail. to reducers as environment variable - MapReduce - [issue]
...Given that there is a sort phase between the copy phase and the reduce phase, it seems like there is a chance for counting during sort.It would be nice if my reducers could have access to an...
http://issues.apache.org/jira/browse/MAPREDUCE-1750    Author: Adam Kramer , 2010-05-03, 06:45