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[MAPREDUCE-2506] Create a compatible interface for frameworks that need to clone MapReduce context objects. - MapReduce - [issue]
...In 0.21 we moved the org.apache.hadoop.mapreduce context objects to interfaces.That made the APIs much better, but broke backwards compatibility for frameworks that need to clone them....
http://issues.apache.org/jira/browse/MAPREDUCE-2506    Author: Owen O'Malley, 2011-05-17, 21:28
Re: how to start the customized Child JVM task process of m/r? - MapReduce - [mail # user]
...2011/4/26 Juwei Shi     Of course. Look at launchTask in  http://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security/src/mapred/org/apache/hadoop/mapred/TaskC...
   Author: Owen O'Malley, 2011-04-26, 16:13
[MAPREDUCE-2361] Distributed Cache is not adding files to class paths correctly - MapReduce - [issue]
...I am trying to add files into class path using:DistributedCache.addFileToClassPathIf file path is relative path like: /user/dir1/dir2/a.jar everything is ok means if I try to get these files...
http://issues.apache.org/jira/browse/MAPREDUCE-2361    Author: Owen O'Malley, 2011-03-11, 04:51
[MAPREDUCE-1478] Separate the mapred.lib and mapreduce.lib classes to a different jar and include the user jar ahead of the lib jar. - MapReduce - [issue]
...Currently the user can't include updated library jars as part of their job. By pulling out the lib classes we can include the classes (eg. TextInputFormat) in the user's jar and get their ve...
http://issues.apache.org/jira/browse/MAPREDUCE-1478    Author: Owen O'Malley, 2011-01-18, 19:20
Re: split locations - MapReduce - [mail # user]
...On Fri, Jan 14, 2011 at 3:09 AM, Pedro Costa  wrote:    It requests that the map runs on one of those machines or on the same rack as one of those machines. Currently there is...
   Author: Owen O'Malley, 2011-01-14, 17:33
[MAPREDUCE-2262] Capacity Scheduler unit tests fail with class not found - MapReduce - [issue]
...Currently the ivy.xml file for the capacity scheduler doesn't include the commons-cli, leading to class not found exceptions....
http://issues.apache.org/jira/browse/MAPREDUCE-2262    Author: Owen O'Malley, 2011-01-13, 19:35
[MAPREDUCE-1567] Sharing Credentials between JobConfs leads to unintentional sharing of credentials - MapReduce - [issue]
...Currently, if code does new JobConf(jobConf), it will share the Credentials. That leads to unintentional sharing....
http://issues.apache.org/jira/browse/MAPREDUCE-1567    Author: Owen O'Malley, 2011-01-13, 02:28
[MAPREDUCE-157] Job History log file format is not friendly for external tools. - MapReduce - [issue]
...Currently, parsing the job history logs with external tools is very difficult because of the format. The most critical problem is that newlines aren't escaped in the strings. That makes usin...
http://issues.apache.org/jira/browse/MAPREDUCE-157    Author: Owen O'Malley, 2011-01-12, 04:45
Re: how to read map_0.out - MapReduce - [mail # user]
...The intermediate files are called IFiles. The format is trivial and you can read the code to see it. The only tricky bit is that you effectively have N IFiles concatenated together (one per ...
   Author: Owen O'Malley, 2011-01-10, 17:26
[MAPREDUCE-1515] need to pass down java5 and forrest home variables - MapReduce - [issue]
...Currently, the build script doesn't pass down the variables for java5 and forrest, so the build breaks unless they are on the command line....
http://issues.apache.org/jira/browse/MAPREDUCE-1515    Author: Owen O'Malley, 2010-12-27, 20:08
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