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[MAPREDUCE-5408] CLONE - The logging level of the tasks should be configurable by the job - MapReduce - [issue]
...It would be nice to be able to configure the logging level of the Task JVM's separately from the server JVM's. Reducing logging substantially increases performance and reduces the consumptio...
http://issues.apache.org/jira/browse/MAPREDUCE-5408    Author: Owen O'Malley, 2013-07-23, 16:57
[MAPREDUCE-336] The logging level of the tasks should be configurable by the job - MapReduce - [issue]
...It would be nice to be able to configure the logging level of the Task JVM's separately from the server JVM's. Reducing logging substantially increases performance and reduces the consumptio...
http://issues.apache.org/jira/browse/MAPREDUCE-336    Author: Owen O'Malley, 2013-07-23, 07:46
[MAPREDUCE-5202] Revert MAPREDUCE-4397 to avoid using incorrect config files - MapReduce - [issue]
...MAPREDUCE-4397 added the capability to switch the location of the taskcontroller.cfg file, which weakens security....
http://issues.apache.org/jira/browse/MAPREDUCE-5202    Author: Owen O'Malley, 2013-05-06, 05:24
[MAPREDUCE-2355] Add an out of band heartbeat damper - MapReduce - [issue]
...We should have a configurable knob to throttle how many out of band heartbeats are sent....
http://issues.apache.org/jira/browse/MAPREDUCE-2355    Author: Owen O'Malley, 2012-11-30, 19:53
[MAPREDUCE-3773] Add queue metrics with buckets for job run times - MapReduce - [issue]
...It would be nice to have queue metrics that reflect the number of jobs in each queue that have been running for different ranges of time.Reasonable time ranges are probably 0-1 hr, 1-5 hr, 5...
http://issues.apache.org/jira/browse/MAPREDUCE-3773    Author: Owen O'Malley, 2012-10-22, 19:47
[MAPREDUCE-4232] Make the distributed cache tests easier to diagnose - MapReduce - [issue]
...We currently require that the test environment: Have umask of 0022. Have a world readable basedir (including parents)It would be good to check for those before bothering to run tests....
http://issues.apache.org/jira/browse/MAPREDUCE-4232    Author: Owen O'Malley, 2012-10-18, 10:03
[MAPREDUCE-4601] Windows CMD processor doesn't use double quotes - MapReduce - [issue]
...Currently, the task launch script under windows matches Linux and double quotes all of the values. Unfortunately, the Windows' CMD processor doesn't need and doesn't ignore the double quotes...
http://issues.apache.org/jira/browse/MAPREDUCE-4601    Author: Owen O'Malley, 2012-08-28, 23:07
[MAPREDUCE-4505] Create a combiner bypass path for keys with a single value - MapReduce - [issue]
...It would help optimize a lot of cases where there aren't a lot of replicated keys if the framework would bypass the deserialize/combiner/serialize step for keys that only have a single value...
http://issues.apache.org/jira/browse/MAPREDUCE-4505    Author: Owen O'Malley, 2012-08-01, 19:07
[MAPREDUCE-318] Refactor reduce shuffle code - MapReduce - [issue]
...The reduce shuffle code has become very complex and entangled. I think we should move it out of ReduceTask and into a separate package (org.apache.hadoop.mapred.task.reduce). Details to foll...
http://issues.apache.org/jira/browse/MAPREDUCE-318    Author: Owen O'Malley, 2012-07-29, 21:55
[MAPREDUCE-463] The job setup and cleanup tasks should be optional - MapReduce - [issue]
...For jobs that require low latency and do not require setup or cleanup tasks for the job, it should be possible to turn them off for that job....
http://issues.apache.org/jira/browse/MAPREDUCE-463    Author: Owen O'Malley, 2012-07-28, 00:36
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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