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From "Rajesh Balamohan (Jira)" <j...@apache.org>
Subject [jira] [Commented] (TEZ-4254) Don't unset the tez config if both mr and tez config have same value.
Date Wed, 06 Jan 2021 03:17:00 GMT

    [ https://issues.apache.org/jira/browse/TEZ-4254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259375#comment-17259375
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Rajesh Balamohan commented on TEZ-4254:
---------------------------------------

I am missing it. It should be the other way around in the map ("mapreduce.shuffle.ssl.enabled"
--> "tez.runtime.shuffle.ssl.enable").

[https://github.com/apache/tez/blob/master/tez-mapreduce/src/main/java/org/apache/tez/mapreduce/hadoop/DeprecatedKeys.java#L135]

 

 

> Don't unset the tez config if both mr and tez config have same value.
> ---------------------------------------------------------------------
>
>                 Key: TEZ-4254
>                 URL: https://issues.apache.org/jira/browse/TEZ-4254
>             Project: Apache Tez
>          Issue Type: Bug
>    Affects Versions: 0.9.1
>            Reporter: Rajkumar Singh
>            Priority: Major
>         Attachments: TEZ-4254.patch
>
>
> while translated mr config to the tez config we unset config here.
> https://github.com/apache/tez/blob/master/tez-mapreduce/src/main/java/org/apache/tez/mapreduce/hadoop/MRHelpers.java#L187
> There is no need to unset the config if both mr and tez have same value.
> we observed if equivalent of tez config for mapreduce.shuffle.ssl.enabled (tez.runtime.shuffle.ssl.enable)
set to true, we unset the config, this propagate config tez.runtime.shuffle.ssl.enable={mapreduce.shuffle.ssl.enabled}
at runtime and variable substitution does not work correctly in the absence of mrconfig runtime.



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