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[MAPREDUCE-4767] AM should flush AMInfos to history file - MapReduce - [issue]
...When the ApplicationMaster starts up and generates (and potentially recovers) AMInfo records for the history file, those events should be flushed to disk in case the AM crashes badly.  ...
http://issues.apache.org/jira/browse/MAPREDUCE-4767    Author: Jason Lowe, 2012-11-01, 22:48
[MAPREDUCE-4521] mapreduce.user.classpath.first incompatibility with 0.20/1.x - MapReduce - [issue]
...In Hadoop 0.20 or 1.x, jobs can specify the user's classpath should appear first by setting the property mapreduce.user.classpath.first to true in the job configuration.  However in Had...
http://issues.apache.org/jira/browse/MAPREDUCE-4521    Author: Jason Lowe, 2012-10-17, 14:21
[MAPREDUCE-4020] Web services returns incorrect JSON for deep queue tree - MapReduce - [issue]
...When the capacity scheduler is configured for more than two levels of queues, the web services API returns incorrect JSON for the subQueues field of some parent queues.  The "subQueues"...
http://issues.apache.org/jira/browse/MAPREDUCE-4020    Author: Jason Lowe, 2012-10-11, 18:48
[MAPREDUCE-4646] client does not receive job diagnostics for failed jobs - MapReduce - [issue]
...When a job fails the client is not showing any diagnostics.  For example, running a fail job results in this not-so-helpful message from the client:2012-09-07 21:12:00,649 INFO  [m...
http://issues.apache.org/jira/browse/MAPREDUCE-4646    Author: Jason Lowe, 2012-10-11, 18:48
[MAPREDUCE-4228] mapreduce.job.reduce.slowstart.completedmaps is not working properly to delay the scheduling of the reduce tasks - MapReduce - [issue]
...If no more map tasks need to be scheduled but not all have completed, the ApplicationMaster will start scheduling reducers even if the number of completed maps has not met the mapreduce.job....
http://issues.apache.org/jira/browse/MAPREDUCE-4228    Author: Jason Lowe, 2012-10-11, 18:48
[MAPREDUCE-4705] Historyserver links expire before the history data does - MapReduce - [issue]
...The historyserver can serve up links to jobs that become useless well before the job history files are purged.  For example on a large, heavily used cluster we can end up rotating throu...
http://issues.apache.org/jira/browse/MAPREDUCE-4705    Author: Jason Lowe, 2012-10-09, 15:00
[MAPREDUCE-4714] Historyserver retrieves job from jobID more often than necessary - MapReduce - [issue]
...When serving up a web page for job history, AppController.requireJob() is converting from a jobID to a job twice when it only needs to do it once.  The resulting job is stored into the ...
http://issues.apache.org/jira/browse/MAPREDUCE-4714    Author: Jason Lowe, 2012-10-08, 21:18
[MAPREDUCE-4644] mapreduce-client-jobclient-tests do not run from dist tarball - MapReduce - [issue]
...The mapreduce jobclient tests rely on junit which is missing from the dist tarball.  This prevents running often-used tests like sleep jobs....
http://issues.apache.org/jira/browse/MAPREDUCE-4644    Author: Jason Lowe, 2012-10-01, 23:45
[MAPREDUCE-4689] JobClient.getMapTaskReports on failed job results in NPE - MapReduce - [issue]
...When calling JobClient.getMapTaskReports for a job that has failed results in an NPE.  For example:Exception in thread "main" java.lang.NullPointerException at org.apache.hadoop.mapredu...
http://issues.apache.org/jira/browse/MAPREDUCE-4689    Author: Jason Lowe, 2012-09-30, 02:18
[MAPREDUCE-4691] Historyserver can report "Unknown job" after RM says job has completed - MapReduce - [issue]
...Example traceback from the client:2012-09-27 20:28:38,068 [main] INFO  org.apache.hadoop.mapred.ClientServiceDelegate - Application state is completed. FinalApplicationStatus=SUCCEEDED....
http://issues.apache.org/jira/browse/MAPREDUCE-4691    Author: Jason Lowe, 2012-09-30, 02:15
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