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Posted to mapreduce-dev@hadoop.apache.org by "Eric Yang (Resolved) (JIRA)" <ji...@apache.org> on 2011/11/07 18:50:51 UTC
[jira] [Resolved] (MAPREDUCE-3367) Consolidate MRv2 maven modules
[ https://issues.apache.org/jira/browse/MAPREDUCE-3367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eric Yang resolved MAPREDUCE-3367.
----------------------------------
Resolution: Duplicate
This is a duplicate issue of MAPREDUCE-2600.
> Consolidate MRv2 maven modules
> ------------------------------
>
> Key: MAPREDUCE-3367
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3367
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: build, mrv2
> Affects Versions: 0.23.0
> Environment: Java, Maven
> Reporter: Eric Yang
> Assignee: Eric Yang
>
> Maven modules for MRv2 has been splitter into many small pieces, like this:
> {noformat}
> [INFO] hadoop-yarn ....................................... SUCCESS [0.312s]
> [INFO] hadoop-yarn-api ................................... SUCCESS [24.184s]
> [INFO] hadoop-yarn-common ................................ SUCCESS [18.243s]
> [INFO] hadoop-yarn-server ................................ SUCCESS [0.094s]
> [INFO] hadoop-yarn-server-common ......................... SUCCESS [5.394s]
> [INFO] hadoop-yarn-server-nodemanager .................... SUCCESS [7.056s]
> [INFO] hadoop-yarn-server-web-proxy ...................... SUCCESS [2.295s]
> [INFO] hadoop-yarn-server-resourcemanager ................ SUCCESS [10.217s]
> [INFO] hadoop-yarn-server-tests .......................... SUCCESS [0.395s]
> [INFO] hadoop-yarn-applications .......................... SUCCESS [0.069s]
> [INFO] hadoop-yarn-applications-distributedshell ......... SUCCESS [2.534s]
> [INFO] hadoop-yarn-site .................................. SUCCESS [0.144s]
> [INFO] hadoop-mapreduce-client ........................... SUCCESS [0.073s]
> [INFO] hadoop-mapreduce-client-core ...................... SUCCESS [13.727s]
> [INFO] hadoop-mapreduce-client-common .................... SUCCESS [13.045s]
> [INFO] hadoop-mapreduce-client-shuffle ................... SUCCESS [1.909s]
> [INFO] hadoop-mapreduce-client-app ....................... SUCCESS [6.676s]
> [INFO] hadoop-mapreduce-client-hs ........................ SUCCESS [3.317s]
> [INFO] hadoop-mapreduce-client-jobclient ................. SUCCESS [2.575s]
> [INFO] hadoop-mapreduce .................................. SUCCESS [4.952s]
> {noformat}
> The excessive use of directory structure is slowing down development and compile time. For example, hadoop-yarn-server-tests and hadoop-yarn-site should not be stand alone modules. There are better ways to organize the source code. The proposal is to rearrange the code to:
> {noformat}
> Apache Hadoop Mapreduce Project
> - Apache Hadoop Mapreduce Client
> - Apache Hadoop YARN
> {noformat}
> This is a nice to have for 0.23, but optional.
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