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[MAPREDUCE-4863] Adding aggregationWaitMap for node-level combiner. - MapReduce - [issue]
...To manage node/rack-level combining, MRAppMaster needs to have a management information about outputs of completed MapTasks to be aggregated.  AggregationWaitMap is used so that MRAppMa...
http://issues.apache.org/jira/browse/MAPREDUCE-4863    Author: Tsuyoshi OZAWA, 2013-01-18, 05:56
[MAPREDUCE-4525] Combiner per node - MapReduce - [issue]
...This JIRA is to implement the combining per container(MAPREDUCE-3902 is related), coordinating containers by application master without breaking fault tolerance of jobs....
http://issues.apache.org/jira/browse/MAPREDUCE-4525    Author: Tsuyoshi OZAWA, 2012-09-11, 02:41
[MAPREDUCE-4582] [MAPREDUCE-3902] ScheduledRequests#remove should remove the elements from mapsHostMapping and mapsRackMapping - MapReduce - [issue]
...ScheduledRequests#remove only remove the specified TaskAttemptId from "maps".It's inefficient, and the method should remove the elements from mapsHostMapping and mapsRackMapping....
http://issues.apache.org/jira/browse/MAPREDUCE-4582    Author: Tsuyoshi OZAWA, 2012-09-04, 19:17
[MAPREDUCE-4615] [MAPREDUCE-3902] RMContainerAllocator#assign should be split into functions - MapReduce - [issue]
...Currently, the RMContainerAllocator#assign functions does a lot of works inside the one function. This is a bit confusing and make the changes difficult, so this ticket is for refactoring th...
http://issues.apache.org/jira/browse/MAPREDUCE-4615    Author: Tsuyoshi OZAWA, 2012-08-31, 23:02
[MAPREDUCE-4609] [MAPREDUCE-3902] RMContainerAllocator#scheduleInterval should be configurable - MapReduce - [issue]
...Currently, RMContainerAllocator#scheduleInterval is fixed. It should be configurable....
http://issues.apache.org/jira/browse/MAPREDUCE-4609    Author: Tsuyoshi OZAWA, 2012-08-31, 21:20
[MAPREDUCE-4599] [MAPREDUCE-3902] Ensure not to launch container on blacklisted hosts - MapReduce - [issue]
...The current implementation of RMContainerAllocator doesn't ensure not to launch containers on blacklisted nodes. This may cause some skews by tasks on bad nodes....
http://issues.apache.org/jira/browse/MAPREDUCE-4599    Author: Tsuyoshi OZAWA, 2012-08-29, 19:32
[MAPREDUCE-4581] [MAPREDUCE-3902] TaskHeartbeatHandler should extends HeartbeatHandlerBase - MapReduce - [issue]
...TaskHeartbeatHandler extends AbstractService currently, however, this causes code duplication between TaskHeartbeatHandler and HeartbeatHandlerBase. TaskHeartbeatHandler should extends Heart...
http://issues.apache.org/jira/browse/MAPREDUCE-4581    Author: Tsuyoshi OZAWA, 2012-08-25, 21:27
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB