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[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
[MAPREDUCE-6280] Reject directory vs file path conflict resolution in FileOutputCommitter - MapReduce - [issue]
...If one task commits a directory foo, and then another task commits file foo, the directory foo with potentially many files will be wiped out. While this is a very unlikely scenario, due to t...
http://issues.apache.org/jira/browse/MAPREDUCE-6280    Author: Gera Shegalov, 2015-03-18, 22:08
[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, 2015-03-07, 19:44
[MAPREDUCE-6223] TestJobConf#testNegativeValueForTaskVmem failures - MapReduce - [issue]
...Tests run: 8, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 3.328 sec <<< FAILURE! - in org.apache.hadoop.conf.TestJobConftestNegativeValueForTaskVmem(org.apache.hadoop.conf.Tes...
http://issues.apache.org/jira/browse/MAPREDUCE-6223    Author: Gera Shegalov, 2015-03-02, 06:31
[MAPREDUCE-5847] Remove redundant code for fileOutputByteCounter in MapTask and ReduceTask - MapReduce - [issue]
...Both MapTask and ReduceTask carry redundant code to update BYTES_WRITTEN counter. However, Task.updateCounters uses file system stats for this....
http://issues.apache.org/jira/browse/MAPREDUCE-5847    Author: Gera Shegalov, 2015-02-05, 22:49
[MAPREDUCE-5839] Provide a boolean switch to enable LazyOutputFormat - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5839    Author: Gera Shegalov, 2015-02-05, 18:46
[MAPREDUCE-5696] Add Localization counters to MR - MapReduce - [issue]
...Users are often unaware of localization cost that their jobs incur. To measure effectiveness of localization caches it is necessary to expose the overhead in the form of user-visible metrics...
http://issues.apache.org/jira/browse/MAPREDUCE-5696    Author: Gera Shegalov, 2015-02-05, 18:31
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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