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Re: why one mapper process per block? - MapReduce - [mail # dev]
...Have a look at CombineFileInputFormat - it can process multiple splits per  map.  Tom  On Fri, Jan 15, 2010 at 4:11 PM, Clements, Michael  wrote: a...
   Author: Tom White, 2010-01-16, 00:35
Re: mapreduce trunk is broken - MapReduce - [mail # dev]
...This is due to https://issues.apache.org/jira/browse/HADOOP-5901, which I've now reverted. I just did  svn up; ant veryclean compile  and managed to build successfully.  Cheer...
   Author: Tom White, 2009-12-15, 19:37
Re: Scheduling dependent jobs with hadoop-0.20.0 - MapReduce - [mail # user]
...Hi Thomas,  The job control feature has been ported to the new MapReduce API in https://issues.apache.org/jira/browse/MAPREDUCE-368. This will be in 0.21 I think.  Cheers, Tom &nbs...
   Author: Tom White, 2009-08-13, 13:25
[MAPREDUCE-561] Restructure the hadoop.mapred package - MapReduce - [issue]
...The MapReduce code should be split into org.apache.hadoop.mapreduce for the user API (covered by HADOOP-1230), and org.apache.hadoop.mapreduce.server for the server components....
http://issues.apache.org/jira/browse/MAPREDUCE-561    Author: Tom White, 2009-07-08, 16:52
Re: New subproject logos - MapReduce - [mail # dev]
...+1  Tom  On Fri, Jun 26, 2009 at 8:13 AM, Chris Douglas wrote:...
   Author: Tom White, 2009-06-26, 10:16
[MAPREDUCE-619] Include more detail in the exception message when a streaming task fails - MapReduce - [issue]
...When debugging streaming programs, it would be useful to have the last few lines from stderr in the exception message (which is shown in the task's status display)....
http://issues.apache.org/jira/browse/MAPREDUCE-619    Author: Tom White, 2009-06-22, 15:06
[MAPREDUCE-603] Fix unchecked warnings in contrib code - MapReduce - [issue]
...There are unchecked warnings in abacus, data_join and streaming....
http://issues.apache.org/jira/browse/MAPREDUCE-603    Author: Tom White, 2009-06-22, 15:06
[MAPREDUCE-342] Create a public scheduler API - MapReduce - [issue]
...The work in HADOOP-3412 provided an API to support pluggable schedulers. However implementations have to be in the org.apache.hadoop.mapred package, which is undesirable. The goal of this is...
http://issues.apache.org/jira/browse/MAPREDUCE-342    Author: Tom White, 2009-06-20, 07:51
[MAPREDUCE-252] Create an InputFormat for reading lines of text as Java Strings - MapReduce - [issue]
...Such a StringInputFormat would be like TextInputFormat but with input types of Long and String, rather than LongWritable and Text. This would allow users to write MapReduce programs that use...
http://issues.apache.org/jira/browse/MAPREDUCE-252    Author: Tom White, 2009-06-20, 07:51
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