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Re: Policy on adding timeouts to tests - MapReduce - [mail # dev]
...Hi Karthik,Some tests with servers like MiniCluster or ZK can never end becauseof unexpected busy loop or something if the tests don't have timeouts.It can blocks the other jobs of Jenkins s...
   Author: Tsuyoshi OZAWA, 2014-04-16, 17:52
Re: Thinking ahead - MapReduce - [mail # dev]
...Hi,+1 for 2.4.1 release(non-binding).There are some critical issues including YARN-1861 and YARN-1929 aboutRM-HA. IMO, we should include the fixes.One question is whether we can include RM-H...
   Author: Tsuyoshi OZAWA, 2014-04-14, 16:48
Re: [VOTE] Release Apache Hadoop 2.4.0 - MapReduce - [mail # dev]
...Hi Arun,I apologize for the late response.If the problems are recognized correctly, +1 for the release(non-binding).* Ran examples on pseudo distributed cluster.* Ran tests.* Built from sour...
   Author: Tsuyoshi OZAWA, 2014-04-09, 04:11
Re: Looking for a resource about measuring MapReduce performance - MapReduce - [mail # dev]
...Hi Pramod,Now PUMA benchmarks are available at the following site:https://sites.google.com/site/farazahmad/pumabenchmarksThanks, TsuyoshiOn Mon, Feb 10, 2014 at 2:46 AM, Pramod Biligiri ...
   Author: Tsuyoshi OZAWA, 2014-02-14, 00:31
Re: The code for the Shuffle phase of MapReduce - MapReduce - [mail # dev]
...Hi Pramod,In addition to shuffle plugin related parts, please check out howspill works in MapTask.java and how reducer fetches MapOutputs frommappers.Thanks, TsuyoshiOn Mon, Feb 10, 2014 at ...
   Author: Tsuyoshi OZAWA, 2014-02-14, 00:30
Re: [VOTE] Release Apache Hadoop 2.3.0 - MapReduce - [mail # dev]
...+1 (non-binding)* Built from source.* Ran a pseudo-cluster with manual RM HA.* Ran a few MR examples as tests.Thanks, TsuyoshiOn Tue, Feb 11, 2014 at 6:49 AM, Arun C Murthy  wrote:- Tsu...
   Author: Tsuyoshi OZAWA, 2014-02-13, 23:43
[MAPREDUCE-5755] MapTask.MapOutputBuffer#compare/swap should have @Override annotation - MapReduce - [issue]
...MapTask.MapOutputBuffer#compare/swap implements IndexedSortable interface, but not have @Override annotation. It should be added....
http://issues.apache.org/jira/browse/MAPREDUCE-5755    Author: Tsuyoshi OZAWA, 2014-02-12, 21:51
[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
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