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[MAPREDUCE-189] Change Map-Reduce framework to use JAAS instead of UGI - MapReduce - [issue]
...Hadoop embraced JAAS via HADOOP-4348.We need to fix Map-Reduce to use JAAS concepts such as Subject, Principal, Permission etc. rather than UserGroupInformation for user identification, queu...
http://issues.apache.org/jira/browse/MAPREDUCE-189    Author: Arun C Murthy, 2014-07-21, 18:16
[MAPREDUCE-288] Documention for using external profilers on Map-Reduce applications - MapReduce - [issue]
...We should document the usage of external profilers such as YourKit/NetBeans on Map-Reduce tasks in http://hadoop.apache.org/core/docs/current/mapred_tutorial.html#Profiling. Specifically the...
http://issues.apache.org/jira/browse/MAPREDUCE-288    Author: Arun C Murthy, 2014-07-21, 17:34
[MAPREDUCE-138] Rework job-setup and job-cleanup tasks - MapReduce - [issue]
...Currently we have a notion of map-{setup|cleanup} TIP and reduce-{setup|cleanup} TIP of which only 1 setup and cleanup tasks are picked by the JobInProgress. Also a lot of state-mainten...
http://issues.apache.org/jira/browse/MAPREDUCE-138    Author: Arun C Murthy, 2014-07-19, 20:00
[MAPREDUCE-387] Hadoop Pipes Submitter assumes that presence of a Java InputFormat implies a Java RecordReader - MapReduce - [issue]
...The Submitter's command line parsing makes this assumption, which might not be true always......
http://issues.apache.org/jira/browse/MAPREDUCE-387    Author: Arun C Murthy, 2014-07-18, 21:55
[MAPREDUCE-82] Revert the temporary change made to collection of Job's metrics done by HADOOP-3521 - MapReduce - [issue]
...HADOOP-3521 is a temporary fix, it needs to be reverted....
http://issues.apache.org/jira/browse/MAPREDUCE-82    Author: Arun C Murthy, 2014-07-18, 19:22
[MAPREDUCE-606] Implement a binary input/output format for Streaming - MapReduce - [issue]
...Lots of streaming applications process textual data with 1 record per line and fields separated by a delimiter. It turns out that there is no point in using any of Hadoop's input/output form...
http://issues.apache.org/jira/browse/MAPREDUCE-606    Author: Arun C Murthy, 2014-07-18, 06:09
[MAPREDUCE-344] Remove dead code block in  JobInProgress.completedTask - MapReduce - [issue]
...Since the taskCommitThread ensures that one and only one task of a given TIP is marked as SUCCEEDED, we don't need the code block in JobInProgress.completedTask which checks if the TIP is co...
http://issues.apache.org/jira/browse/MAPREDUCE-344    Author: Arun C Murthy, 2014-07-17, 21:02
[MAPREDUCE-215] Improve facilities for job-control, job-queues etc. - MapReduce - [issue]
...Today, Map-Reduce has some support for job-control - basically JobClient provides a facility to monitor jobs, one can setup a job-ending notification and there is JobControl.Links:http://luc...
http://issues.apache.org/jira/browse/MAPREDUCE-215    Author: Arun C Murthy, 2014-07-17, 20:19
[MAPREDUCE-2830] Document config parameters for each Map-Reduce class/interface - MapReduce - [issue]
...I propose we add a table in the javadoc for each user-facing Map-Reduce interface/class which lists, and provides details, of each and every config parameter which has any bearing on that in...
http://issues.apache.org/jira/browse/MAPREDUCE-2830    Author: Arun C Murthy, 2014-07-17, 19:18
[MAPREDUCE-259] Rack-aware Shuffle - MapReduce - [issue]
...We could try and experiment with rack-aware scheduling of fetches per-reducer. Given the disparities between in-rack and off-rack bandwidth it could be a improvement to do something along th...
http://issues.apache.org/jira/browse/MAPREDUCE-259    Author: Arun C Murthy, 2014-07-17, 18:37
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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