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Posted to common-dev@hadoop.apache.org by "Rungroj Maipradit (Jira)" <ji...@apache.org> on 2020/06/04 07:05:00 UTC
[jira] [Created] (HADOOP-17064) Drop MRv1 binary compatibility in
4.0.0
Rungroj Maipradit created HADOOP-17064:
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Summary: Drop MRv1 binary compatibility in 4.0.0
Key: HADOOP-17064
URL: https://issues.apache.org/jira/browse/HADOOP-17064
Project: Hadoop Common
Issue Type: Sub-task
Reporter: Rungroj Maipradit
A code comment suggests making the setJobConf method deprecated along with mapred package HADOOP-1230. HADOOP-1230 has been closed a long time ago, but the method is still not annotated as deprecated.
{code:java}
/**
* This code is to support backward compatibility and break the compile
* time dependency of core on mapred.
* This should be made deprecated along with the mapred package HADOOP-1230.
* Should be removed when mapred package is removed.
*/ {code}
Comment location: [https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/ReflectionUtils.java#L88]
From the previous discussion, it seems that this method is still required if we ensure binary compatibility with MRv1.
https://issues.apache.org/jira/browse/HADOOP-17047?focusedCommentId=17111702&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17111702
Mingliang Liu suggested to Drop MRv1 binary compatibility in 4.0.0
https://issues.apache.org/jira/browse/HADOOP-17047?focusedCommentId=17112442&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17112442
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