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[MAPREDUCE-5623] TestJobCleanup fails because of RejectedExecutionException and NPE. - MapReduce - [issue]
...org.apache.hadoop.mapred.TestJobCleanup can fail because of RejectedExecutionException by NonAggregatingLogHandler. This problem is described in YARN-1409. TestJobCleanup can still fail afte...
http://issues.apache.org/jira/browse/MAPREDUCE-5623    Author: Tsuyoshi OZAWA, 2013-12-17, 15:01
Re: Container [pid=22885,containerID=container_1386156666044_0001_01_000013] is running beyond physical memory limits. Current usage: 1.0 GB of 1 GB physical memory used; 332.5 GB of 8 GB virtual memory used. Killing container. - MapReduce - [mail # user]
...Hi,  Please check the properties like mapreduce.reduce.memory.mb and mapredce.map.memory.mb in mapred-site.xml. These properties decide resource limits for mappers/reducers.  On We...
   Author: Tsuyoshi OZAWA, 2013-12-04, 17:01
[MAPREDUCE-4502] Node-level aggregation with combining the result of maps - MapReduce - [issue]
...The shuffle costs is expensive in Hadoop in spite of the existence of combiner, because the scope of combining is limited within only one MapTask. To solve this problem, it's a good way to a...
http://issues.apache.org/jira/browse/MAPREDUCE-4502    Author: Tsuyoshi OZAWA, 2013-12-03, 15:42
Re: release-2.2.0 tag? - MapReduce - [mail # dev]
...Hi Mohammad,  IIUC, 2.2.0 is the latest released version. branch-2.2 is the latest branch under development.  On Fri, Nov 8, 2013 at 11:52 AM, Mohammad Islam  wrote:   &n...
   Author: Tsuyoshi OZAWA, 2013-11-08, 06:38
[MAPREDUCE-4980] Parallel test execution of hadoop-mapreduce-client-core - MapReduce - [issue]
...The maven surefire plugin supports parallel testing feature. By using it, the tests can be run more faster....
http://issues.apache.org/jira/browse/MAPREDUCE-4980    Author: Tsuyoshi OZAWA, 2013-10-30, 21:12
Re: map container is assigned default memory size rather than user configured which will cause TaskAttempt failure - MapReduce - [mail # user]
...Hi,  How about checking the value of mapreduce.map.java.opts? Are your JVMs launched with assumed heap memory?  On Thu, Oct 24, 2013 at 11:31 AM, Manu Zhang  wrote:   &nb...
   Author: Tsuyoshi OZAWA, 2013-10-24, 07:11
Re: Managing docs with hadoop-1 & hadoop-2 - MapReduce - [mail # dev]
...+1, Eli's proposal looks good to me.  - Tsuyoshi...
   Author: Tsuyoshi OZAWA, 2013-10-18, 21:20
Re: Hadoop 2.2.0 docs - MapReduce - [mail # user]
...Hi,  One point in addition to Arun's comment: the docs Arun pointed is being updated now. Please check this JIRA. https://issues.apache.org/jira/browse/HADOOP-10050  Thanks, Tsuyos...
   Author: Tsuyoshi OZAWA, 2013-10-18, 21:04
Re: How to modify the Map-Reduce execution order? - MapReduce - [mail # dev]
...Hi Anh,  How about using ChainMapper? Is the helpful for you? http://hadoop.apache.org/docs/current/api/org/apache/hadoop/mapred/lib/ChainMapper.html  Thanks, Tsuyoshi  On Wed...
   Author: Tsuyoshi OZAWA, 2013-10-16, 09:08
[expand - 3 more] - Re: [VOTE] Release Apache Hadoop 2.2.0 - MapReduce - [mail # dev]
...Filed the problems as https://issues.apache.org/jira/browse/HADOOP-10051.  On Wed, Oct 16, 2013 at 12:00 AM, Tsuyoshi OZAWA  wrote:    - Tsuyoshi...
   Author: Tsuyoshi OZAWA, 2013-10-16, 07:24
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