[jira] [Commented] (KYLIN-1995) Upgrade MapReduce properties which are deprecated

["hongbin ma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-1995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15462926#comment-15462926 ] 

hongbin ma commented on KYLIN-1995:
-----------------------------------

nice findings!

should we take care of all the kylin_job_conf.xml and kylin_job_conf_inmem.xml in examples/ folder? they're being used in UT/IT

> Upgrade MapReduce properties which are deprecated
> -------------------------------------------------
>
>                 Key: KYLIN-1995
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1995
>             Project: Kylin
>          Issue Type: Task
>          Components: Job Engine
>    Affects Versions: v1.5.2
>            Reporter: Billy(Yiming) Liu
>            Assignee: Dong Li
>            Priority: Minor
>         Attachments: 0001-KYLIN-1995-Upgrade-deprecated-properties-for-Hadoop-.patch
>
>
> Currently, Kylin use Hadoop 2.6 API. There are many properties are deprecated in Hadoop 2.6, but still used in kylin's kylin_hive_conf.xml and kylin_job_conf.xml, such as mapred.compress.map.output, mapred.map.output.compression.codec and more. The full list is https://hadoop.apache.org/docs/r2.6.0/hadoop-project-dist/hadoop-common/DeprecatedProperties.html 
> In this JIRA task, the deprecated properties will be upgraded to hadoop 2.6 effective name and value.



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