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https://issues.apache.org/jira/browse/HADOOP-19763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18048267#comment-18048267
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ASF GitHub Bot commented on HADOOP-19763:
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cnauroth commented on PR #8148:
URL: https://github.com/apache/hadoop/pull/8148#issuecomment-3697243573
@zabetak , great idea! I pushed up a new test. I'll do the same for YARN in
#8149 .
I don't have plans right now for adding test coverage of others
(hdfs-default.xml, mapred-default.xml, distcp-default.xml, etc.). The same
technique could apply there though if anyone wants to add those in the future.
> Remove deprecated properties from core-default.xml
> --------------------------------------------------
>
> Key: HADOOP-19763
> URL: https://issues.apache.org/jira/browse/HADOOP-19763
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Priority: Major
> Labels: pull-request-available
>
> Recent trunk changes now produce more assertive warnings about use of
> deprecated configuration properties. With some of these deprecated properties
> included in core-default.xml, that means every process launched logs the
> warnings. Remove them from core-default.xml to avoid these warnings. (Note
> that this does not take the step of actually removing the code that uses the
> deprecated properties. They'll continue to work. We just don't want warnings
> logged by default if the user didn't specifically use these properties.)
> {code}
> hadoop fs -ls /
> 2025-12-26 23:17:33,154 INFO Configuration.deprecation: fs.default.name in
> core-default.xml is deprecated. Instead, use fs.defaultFS
> 2025-12-26 23:17:33,307 INFO Configuration.deprecation: io.bytes.per.checksum
> in core-default.xml is deprecated. Instead, use dfs.bytes-per-checksum
> {code}
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