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[MAPREDUCE-5785] Derive heap size or mapreduce.*.memory.mb automatically - MapReduce - [issue]
...Currently users have to set 2 memory-related configs per Job / per task type.  One first chooses some container size map reduce.*.memory.mb and then a corresponding maximum Java hea...
http://issues.apache.org/jira/browse/MAPREDUCE-5785    Author: Gera Shegalov, 2015-11-03, 10:37
[MAPREDUCE-6009] Map-only job with new-api runs wrong OutputCommitter when cleanup scheduled in a reduce slot - MapReduce - [issue]
...In branch 1 job commit is executed in a JOB_CLEANUP task that may run in either map or reduce slotin org.apache.hadoop.mapreduce.Job#setUseNewAPI there is a logic setting new-api flag only f...
http://issues.apache.org/jira/browse/MAPREDUCE-6009    Author: Gera Shegalov, 2015-07-23, 08:42
[MAPREDUCE-6395] Improve the commit failure messages in MRAppMaster recovery - MapReduce - [issue]
...There are typos, and pluralis majestatis (royal we) or user-including "we" messages that are confusing to the users:        if (commitSuccess) {       ...
http://issues.apache.org/jira/browse/MAPREDUCE-6395    Author: Gera Shegalov, 2015-06-20, 02:46
[MAPREDUCE-6336] Enable v2 FileOutputCommitter by default - MapReduce - [issue]
...This JIRA is to propose making new FileOutputCommitter behavior from MAPREDUCE-4815 enabled by default in trunk, and potentially in branch-2....
http://issues.apache.org/jira/browse/MAPREDUCE-6336    Author: Gera Shegalov, 2015-05-28, 16:54
[MAPREDUCE-5932] Provide an option to use a dedicated reduce-side shuffle log - MapReduce - [issue]
...For reducers in large jobs our users cannot easily spot portions of the log associated with problems with their code. An example reducer with INFO-level logging generates ~3500 lines / ~700K...
http://issues.apache.org/jira/browse/MAPREDUCE-5932    Author: Gera Shegalov, 2015-04-25, 00:15
[MAPREDUCE-5892] Derive MR-AM container size and Xmx based on the job size: number of splits and reduces - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5892    Author: Gera Shegalov, 2015-04-20, 22:05
[MAPREDUCE-6315] Implement retrieval of logs for crashed MR-AM via jhist in the staging directory - MapReduce - [issue]
...When all AM attempts crash, there is no record of them in JHS. Thus no easy way to get the logs. This JIRA automates the procedure by utilizing the jhist file in the staging directory....
http://issues.apache.org/jira/browse/MAPREDUCE-6315    Author: Gera Shegalov, 2015-04-13, 23:54
[MAPREDUCE-5875] Make Counter limits consistent across JobClient, MRAppMaster, and YarnChild - MapReduce - [issue]
...Currently, counter limits "mapreduce.job.counters.*" handled by org.apache.hadoop.mapreduce.counters.Limits are initialized asymmetrically: on the client side, and on the AM, job.xml is igno...
http://issues.apache.org/jira/browse/MAPREDUCE-5875    Author: Gera Shegalov, 2015-04-10, 21:19
[MAPREDUCE-6128] Automatic addition of bundled jars to distributed cache - MapReduce - [issue]
...On the client side, JDK adds Class-Path elements from the job jar manifeston the classpath. In theory there could be many bundled jars in many directories such that adding them manually via ...
http://issues.apache.org/jira/browse/MAPREDUCE-6128    Author: Gera Shegalov, 2015-04-09, 23:29
[MAPREDUCE-4844] Counters / AbstractCounters have constant references not declared final - MapReduce - [issue]
...Counters have a number of immutable fields that have not been declared 'final'.For example, the field groups is not final. It is, however, accessed in a couple of methods that are declared '...
http://issues.apache.org/jira/browse/MAPREDUCE-4844    Author: Gera Shegalov, 2015-04-04, 19:32
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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