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[MAPREDUCE-3944] JobHistory web services are slower then the UI and can easly overload the JH - MapReduce - [issue]
...When our first customer started using the Job History web services today the History Server ground to a halt.  We found 250 Jetty threads stuck on the following stack trace.  ...
http://issues.apache.org/jira/browse/MAPREDUCE-3944    Author: Robert Joseph Evans, 2012-03-07, 13:25
[MAPREDUCE-3312] Make MR AM not send a stopContainer w/o corresponding start container - MapReduce - [issue]
...This is a follow on to MAPREDUCE-3274.  It is possible, although rare, for the MR AM to send a stop container before it sends a start container.  This needs to stop that from happe...
http://issues.apache.org/jira/browse/MAPREDUCE-3312    Author: Robert Joseph Evans, 2012-02-08, 01:43
[MAPREDUCE-3776] org.apache.hadoop.mapreduce.v2.app.TestRMContainerAllocator fails intermittently - MapReduce - [issue]
...org.apache.hadoop.mapreduce.v2.app.TestRMContainerAllocator fails intermittentlyTests run: 9, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 42.267 sec <<< FAILURE!testReportedAp...
http://issues.apache.org/jira/browse/MAPREDUCE-3776    Author: Robert Joseph Evans, 2012-01-31, 23:00
[MAPREDUCE-2539] NPE when calling JobClient.getMapTaskReports for retired job - MapReduce - [issue]
...When calling JobClient.getMapTaskReports for a retired job this results in a NPE.  In the 0.20.* version an empty TaskReport array was returned instead.Caused by: java.lang.NullPointerE...
http://issues.apache.org/jira/browse/MAPREDUCE-2539    Author: Robert Joseph Evans, 2012-01-28, 14:04
[MAPREDUCE-3737] The Web Application Proxy's is not documented very well - MapReduce - [issue]
...The Web Application Proxy is a security feature, but there is no documentation for what it does, why it does it, and more importantly what attacks it is known not protect against.  This...
http://issues.apache.org/jira/browse/MAPREDUCE-3737    Author: Robert Joseph Evans, 2012-01-27, 13:19
[MAPREDUCE-3521] Hadoop Streaming ignores unknown parameters - MapReduce - [issue]
...The hadoop streaming command will ignore any command line arguments to it.hadoop jar streaming.jar -input input -output output -mapper cat -reducer cat ThisIsABadArgumentWorks just fine. &nb...
http://issues.apache.org/jira/browse/MAPREDUCE-3521    Author: Robert Joseph Evans, 2011-12-29, 13:36
[MAPREDUCE-3376] Old mapred API combiner uses NULL reporter - MapReduce - [issue]
...The OldCombinerRunner class inside Task.java uses a NULL Reporter.  If the combiner code runs for an extended period of time, even with reporting progress as it should, the map task can...
http://issues.apache.org/jira/browse/MAPREDUCE-3376    Author: Robert Joseph Evans, 2011-12-21, 13:42
[MAPREDUCE-3387] A tracking URL of N/A before the app master is launched breaks oozie - MapReduce - [issue]
...When oozie launches a map/reduce job it retrieves the tracking URL of that job to display in its own UI.  Previously this tracking URL did not change except when the job completed. &nbs...
http://issues.apache.org/jira/browse/MAPREDUCE-3387    Author: Robert Joseph Evans, 2011-12-17, 13:42
[MAPREDUCE-3388] Streaming task with special char gets wrong output - MapReduce - [issue]
...In 0.20.204:hadoop jar $HADOOP_HOME/hadoop-streaming.jar '-Dmapreduce.job.acl-view-job=*' -files 'file:///tmp/InputDir#testlink!@$&*()-_+=' -input input.txt -mapper 'xargs cat' -reducer ...
http://issues.apache.org/jira/browse/MAPREDUCE-3388    Author: Robert Joseph Evans, 2011-12-08, 22:13
[MAPREDUCE-3501] Fifo scheduler does not match host requests with host:port correctly - MapReduce - [issue]
...When the Fifo scheduler receives a heartbeat from a NM the NM appears as a HOST:PORT.  When a request is made to the scheduler to have a container run on a given host that request is gi...
http://issues.apache.org/jira/browse/MAPREDUCE-3501    Author: Robert Joseph Evans, 2011-12-02, 15:45
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