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[MAPREDUCE-414] Remove the methods controlling comparator options from the JobConf and make them static in the comparator class - MapReduce - [issue]
...It struck me after committing HADOOP-2302 that we should ideally have the getters/setters for the comparator in the comparator class and not in the JobConf....
http://issues.apache.org/jira/browse/MAPREDUCE-414    Author: Devaraj Das, 2009-06-20, 07:57
[MAPREDUCE-381] Add framework hooks to get the running/completed/pending tasks for a given job. Add a way to query the list of currently active tasktrackers from the JobTracker. - MapReduce - [issue]
...Add framework hooks to get the IDs of running/completed/pending tasks for a given job. Add a way to query the list of currently active tasktrackers from the JobTracker. These are required to...
http://issues.apache.org/jira/browse/MAPREDUCE-381    Author: Devaraj Das, 2009-06-20, 07:51
[MAPREDUCE-382] Create a test that would inject random failures for tasks in large jobs and would also inject TaskTracker failures - MapReduce - [issue]
...Create a test that would inject random failures for tasks in large jobs and would also inject TaskTracker failures...
http://issues.apache.org/jira/browse/MAPREDUCE-382    Author: Devaraj Das, 2009-06-20, 07:51
[MAPREDUCE-292] Pin reduces with consecutive IDs to nodes and have a single shuffle task per job per node - MapReduce - [issue]
...The idea is to reduce disk seeks while fetching the map outputs. If we opportunistically pin reduces with consecutive IDs (like 5, 6, 7 .. max-reduce-tasks on that node) on a node, and have ...
http://issues.apache.org/jira/browse/MAPREDUCE-292    Author: Devaraj Das, 2009-06-20, 07:51
[MAPREDUCE-196] Create enum for the TaskTypes (Map, Reduce, JobSetup, JobCleanup, TaskCleanup) - MapReduce - [issue]
...Create enum for the TaskTypes - Map, Reduce, JobSetup, JobCleanup, TaskCleanup. Change the framework to use these enum constants and remove usages of booleans like isMap....
http://issues.apache.org/jira/browse/MAPREDUCE-196    Author: Devaraj Das, 2009-06-20, 07:51
[MAPREDUCE-159] Reduce the number of progress calls in the merge code - MapReduce - [issue]
...The number of Progressable.progress calls in the merge code should be reduced. Specifically, MergeQueue.lessThan has a progress call that accounts for ~8% of the CPU of a running reducer....
http://issues.apache.org/jira/browse/MAPREDUCE-159    Author: Devaraj Das, 2009-06-20, 07:50
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