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[expand - 2 more] - Re: Out of Memory during Reduce Merge - MapReduce - [mail # user]
.../usr/local/hadoop/hprof was an example directory name. You need to find/create a path that exists on every task tracker node.  The flags can be specified in mapred.child.java.opts  ...
   Author: Ted Yu, 2010-06-14, 22:16
Re: Setting a custom splitter and/or tracking files split? - MapReduce - [mail # user]
...Try this: FileSplit fileSplit = (FileSplit) context.getInputSplit(); String sFileName = fileSplit.getPath().getName();  On Fri, Jun 11, 2010 at 9:14 AM, Steve Lewis  wrote:  ...
   Author: Ted Yu, 2010-06-13, 03:33
Re: Split files, index files and input files - MapReduce - [mail # user]
...For 1, see http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/io/MapFile.html For 2, see http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/mapred/InputSplit....
   Author: Ted Yu, 2010-06-09, 21:16
Re: [RT] map reduce "pipelines" - MapReduce - [mail # dev]
...On chaining, please refer to http://hadoop.apache.org/common/docs/r0.20.2/api/org/apache/hadoop/mapred/lib/ChainReducer.html Also check out ChainMapper  See also http://www.mail-archive...
   Author: Ted Yu, 2010-06-09, 17:52
Re: TaskTracker vs TaskInProgress - MapReduce - [mail # user]
...Please refer to http://archive.cloudera.com/cdh/3/hadoop-0.20.2+228/api/org/apache/hadoop/mapred/TaskInProgress.html See method  *getTaskToRun*(String  taskTracker)   On Wed, ...
   Author: Ted Yu, 2010-06-09, 17:39
Re: almost sorted map output - MapReduce - [mail # user]
...Check out https://issues.apache.org/jira/browse/HADOOP-3442 and https://issues.apache.org/jira/browse/HADOOP-3308   On Fri, May 28, 2010 at 10:58 PM, juber patel  wrote:  ...
   Author: Ted Yu, 2010-05-31, 01:17
[MAPREDUCE-1796] job tracker history viewer shows all recent jobs as being run at job tracker (re)start time - MapReduce - [issue]
...This has been the behavior of the History viewer for long that itshows the timestamp when the JobTracker restarted rather than Jobstart time....
http://issues.apache.org/jira/browse/MAPREDUCE-1796    Author: Ted Yu, 2010-05-18, 04:02
[expand - 1 more] - Re: Incorrect dates on job tracker history - MapReduce - [mail # user]
...I didn't find an existing JIRA so I logged MAPREDUCE-1796  On Mon, May 17, 2010 at 6:44 PM, Hemanth Yamijala wrote:  ...
   Author: Ted Yu, 2010-05-18, 03:11
Re: Doubt regarding the Multithreaded maprunner - MapReduce - [mail # dev]
...A thread pool is used to run all the mappers.  Cheers  On Monday, May 3, 2010, Jyothish Soman  wrote:...
   Author: Ted Yu, 2010-05-03, 15:44
Shuffle In Memory in 0.21.0 - MapReduce - [mail # dev]
...I also noticed this in 0.20.2:         conf.getFloat("mapred.job. shuffle.merge.percent", 0.66f); And this in 0.21.0:               &nb...
   Author: Ted Yu, 2010-03-11, 22:33
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