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[MAPREDUCE-5568] JHS returns invalid string for reducer completion percentage if AM restarts with 0 reducer. - MapReduce - [issue]
...JobCLient shows like:13/10/05 16:26:09 INFO mapreduce.Job:  map 100% reduce NaN%13/10/05 16:26:09 INFO mapreduce.Job: Job job_1381015536254_0001 completed successfully13/10/05 16:26:09 ...
http://issues.apache.org/jira/browse/MAPREDUCE-5568    Author: Jian He, 2014-11-25, 22:05
[MAPREDUCE-6168] Old MR client is still broken when receiving new counters from MR job - MapReduce - [issue]
...In the following scenarios:1. Either insecure or secure;2. MR 2.2 with new shuffle on NM;3. Submitting via old client.We will see the following console exception:14/11/17 14:56:19 INFO mapre...
http://issues.apache.org/jira/browse/MAPREDUCE-6168    Author: Zhijie Shen, 2014-11-25, 18:44
[MAPREDUCE-6160] Potential NullPointerException in MRClientProtocol interface implementation. - MapReduce - [issue]
...In the implementation of MRClientProtocol, many methods can throw NullPointerExceptions. Instead of NullPointerExceptions, better to throw IOException with proper message.In the HistoryClien...
http://issues.apache.org/jira/browse/MAPREDUCE-6160    Author: Rohith, 2014-11-25, 17:16
[MAPREDUCE-6166] Reducers do not catch bad map output transfers during shuffle if data shuffled directly to disk - MapReduce - [issue]
...In very large map/reduce jobs (50000 maps, 2500 reducers), the intermediate map partition output gets corrupted on disk on the map side. If this corrupted map output is too large to shuffle ...
http://issues.apache.org/jira/browse/MAPREDUCE-6166    Author: Eric Payne, 2014-11-25, 17:04
[MAPREDUCE-6173] Document the configuration of deploying MR over distributed cache with enabling wired encryption at the same time - MapReduce - [issue]
...Use the current documented configuration (specified in http://hadoop.apache.org/docs/stable/hadoop-mapreduce-client/hadoop-mapreduce-client-core/DistributedCacheDeploy.html) to work with the...
http://issues.apache.org/jira/browse/MAPREDUCE-6173    Author: Junping Du, 2014-11-25, 17:03
[MAPREDUCE-4421] Run MapReduce framework via the distributed cache - MapReduce - [issue]
...Currently MR AM depends on MR jars being deployed on all nodes via implicit dependency on YARN_APPLICATION_CLASSPATH. We should stop adding mapreduce jars to YARN_APPLICATION_CLASSPATH and, ...
http://issues.apache.org/jira/browse/MAPREDUCE-4421    Author: Arun C Murthy, 2014-11-25, 16:37
[MAPREDUCE-5831] Old MR client is not compatible with new MR application - MapReduce - [issue]
...Recently, we saw the following scenario:1. The user setup a cluster of hadoop 2.3., which contains YARN 2.3 and MR  2.3.2. The user client on a machine that MR 2.2 is installed and in t...
http://issues.apache.org/jira/browse/MAPREDUCE-5831    Author: Zhijie Shen, 2014-11-25, 15:16
issue when use MultipleOutputs - MapReduce - [mail # dev]
...hi,maillist:             i am a newbie for MR job coding, i want to ask a questionabout using MultipleOutputs, i plan to change my workcount code and outpu...
   Author: ch huang, 2014-11-25, 09:11
[MAPREDUCE-6144] DefaultSpeculator always add both MAP and REDUCE Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled. - MapReduce - [issue]
...DefaultSpeculator always add both MAP and REDUCE Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled.If both MAP_SPECULATIVE and REDUCE_SPECULATIVE are disabled, DefaultS...
http://issues.apache.org/jira/browse/MAPREDUCE-6144    Author: zhihai xu, 2014-11-25, 08:25
[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, 2014-11-24, 22:38
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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