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[MAPREDUCE-5157] Sort in hadoop-1 examples is not binary compatible with hadoop-2 mapred.lib - MapReduce - [issue]
...In SORT example, org.apache.hadoop.mapred.lib.InputSampler.Sampler is used in hadoop-1. However, after upgrading to hadoop-2, org.apache.hadoop.mapred.lib.InputSampler is modified to extend ...
http://issues.apache.org/jira/browse/MAPREDUCE-5157    Author: Zhijie Shen, 2013-05-13, 19:44
[MAPREDUCE-5159] Aggregatewordcount and aggregatewordhist in hadoop-1 examples are not binary compatible with hadoop-2 mapred.lib.aggregate - MapReduce - [issue]
...Both examples in hadoop-1 use org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJob.createValueAggregatorJob(String args[], Class<?> caller), which no longer exists after upgrading...
http://issues.apache.org/jira/browse/MAPREDUCE-5159    Author: Zhijie Shen, 2013-05-09, 15:06
[MAPREDUCE-5225] SplitSampler in mapreduce.lib should use a SPLIT_STEP to jump around splits - MapReduce - [issue]
...Now, SplitSampler only samples the first maxSplitsSampled splits, caused by MAPREDUCE-1820. However, jumping around all splits is in general preferable than the first N splits....
http://issues.apache.org/jira/browse/MAPREDUCE-5225    Author: Zhijie Shen, 2013-05-09, 06:18
[MAPREDUCE-5160] Aggregatewordcount and aggregatewordhist in hadoop-1 examples can not find their inner classes when running on Yarn - MapReduce - [issue]
...Aggregatewordcount and Aggregatewordhist of hadoop-1 cannot run on hadoop-2 due to org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJob.createValueAggregatorJob(String args[], Class<...
http://issues.apache.org/jira/browse/MAPREDUCE-5160    Author: Zhijie Shen, 2013-05-08, 20:05
[MAPREDUCE-5145] Change default max-attempts to be more than one for MR jobs as well - MapReduce - [issue]
...We need to give the AM of MR jobs the chance to retry....
http://issues.apache.org/jira/browse/MAPREDUCE-5145    Author: Zhijie Shen, 2013-05-01, 15:06
[MAPREDUCE-5140] MR part of YARN-514 - MapReduce - [issue]
...In YARN-514, application store needs to be delayed to unblock application submission, such that a new state of MRApp needs to be created. On mapreduce side, there's some function to map yarn...
http://issues.apache.org/jira/browse/MAPREDUCE-5140    Author: Zhijie Shen, 2013-04-18, 19:28
[MAPREDUCE-4956] The Additional JH Info Should Be Exposed - MapReduce - [issue]
...In MAPREDUCE-4838, the addition info has been added to JH. This info is useful to be exposed, at least via UI....
http://issues.apache.org/jira/browse/MAPREDUCE-4956    Author: Zhijie Shen, 2013-03-20, 01:07
Re: [VOTE] Release hadoop-2.0.3-alpha - MapReduce - [mail # dev]
...+1 (non-binding)  I've downloaded hadoop-2.0.3-alpha.tar.gz, and deployed it on EC2, Rhel 5.8. It's a 5-node cluster (i.e., 1 master, 4 slaves). I've tried the examples, and no failures...
   Author: Zhijie Shen, 2013-02-11, 18:40
Re: API incompatibility between Hadoop 1.0 and Hadoop 2.0 - MapReduce - [mail # dev]
...It seems that there're no documented API changes since 2.0. I'm studying the backward compatibility, if there's anything I can help, please let me know.  Thanks, Zhijie   On Fri, F...
   Author: Zhijie Shen, 2013-02-08, 18:53
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