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[MAPREDUCE-2041] TaskRunner logDir race condition leads to crash on job-acl.xml creation - MapReduce - [issue]
...TaskRunner's prepareLogFiles() warns on mkdirs() failures but ignores them.  It also fails even to check the return value of setPermissions().  Either one can fail (e.g., on NFS, w...
http://issues.apache.org/jira/browse/MAPREDUCE-2041    Author: Greg Roelofs, 2014-07-31, 00:42
[MAPREDUCE-1652] Tasks need to emit a better error message when job-acls.xml file cannot be created - MapReduce - [issue]
...If task cannot create job-acls.xml in userlogs/$jobid/task-attempt-dir(because of disc being full, OR disc has gone bad, etc), then task should emit a better error message instead of failing...
http://issues.apache.org/jira/browse/MAPREDUCE-1652    Author: Ravi Gummadi, 2014-07-31, 00:42
[MAPREDUCE-2039] Improve speculative execution - MapReduce - [issue]
...In speculation, the framework issues a second task attempt on a task where one attempt is already running.  This is useful if the running attempt is bogged down for reasons outside of t...
http://issues.apache.org/jira/browse/MAPREDUCE-2039    Author: Dick King, 2014-07-31, 00:38
[MAPREDUCE-2019] Add  targets for gridmix unit and system tests in a gridmix build xml file. - MapReduce - [issue]
...Add the targets for both unit and system tests in gridmix build xml (src/contrib/gridmix/build.xml). The target name for system tests would be 'test-system' and same way the target name for ...
http://issues.apache.org/jira/browse/MAPREDUCE-2019    Author: Vinay Kumar Thota, 2014-07-31, 00:33
[MAPREDUCE-2018] TeraSort example fails in trunk - MapReduce - [issue]
...Exceptions are thrown while computing splits near the end of file - typically when the number of bytes read is smaller than RECORD_LENGTH10/08/17 22:44:17 WARN conf.Configuration: mapred.tas...
http://issues.apache.org/jira/browse/MAPREDUCE-2018    Author: Krishna Ramachandran, 2014-07-31, 00:31
[MAPREDUCE-2016] GridMix throws an ArithmeticException error when tasktracker count is zero while generating the data. - MapReduce - [issue]
...GridMix throws an ArithmeticException error when tasktracker count is zero. In generating data, while calculating the bytes per task tracker in getSplit method, throws an exception if tasktr...
http://issues.apache.org/jira/browse/MAPREDUCE-2016    Author: Vinay Kumar Thota, 2014-07-31, 00:31
[MAPREDUCE-2009] GridMix hangs forever if there is no tasktracker running in the cluster. - MapReduce - [issue]
...Suppose if user submit a GridMix job in a cluster. However, there are no task trackers running in the cluster, in this case the GridMix is hanging forever at JobMonitor. Please make sure to ...
http://issues.apache.org/jira/browse/MAPREDUCE-2009    Author: Vinay Kumar Thota, 2014-07-31, 00:28
[MAPREDUCE-2006] Gridmix can emit better error messages instead of throwing Exceptions - MapReduce - [issue]
...Gridmix throws Exceptions (including those that come from mapreduce jobs) when there are some issues like(1) ioPath already exists and -generate option is given(2) when -generate option is g...
http://issues.apache.org/jira/browse/MAPREDUCE-2006    Author: Ravi Gummadi, 2014-07-31, 00:26
[MAPREDUCE-1994] Linux task-controller determines its own path insecurely - MapReduce - [issue]
...The task-controller uses argv[0] to determine its own path, and then calls stat() on that. Instead it should stat("/proc/self/exe") directly. This is important since argv[0] ...
http://issues.apache.org/jira/browse/MAPREDUCE-1994    Author: Todd Lipcon, 2014-07-31, 00:21
[MAPREDUCE-1988] We would like more information to be available in job history index - MapReduce - [issue]
...So far, people have requested: completion state start time end time job namebe available from an index recordPlease make additional requests here....
http://issues.apache.org/jira/browse/MAPREDUCE-1988    Author: Dick King, 2014-07-31, 00:15
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