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https://issues.apache.org/jira/browse/HADOOP-17482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17300000#comment-17300000
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Xiaoyu Yao commented on HADOOP-17482:
-------------------------------------
Agree with [~ste...@apache.org] mentioned above. The Jira is open but PR has
been merged.
The merged change breaks the Hadoop CI/Jenkins as now the ambiguity issue
between two slf4j Logger instances to the same FileSystem.class failed the
build.
Previously log instances seem hacky with as one from common logger and one from
slf4j.
{code:java}
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR]
/home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-2762/src/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestEncryptionZones.java:[1424,25]
error: reference to LOG is ambiguous
[ERROR]
/home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-2762/src/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestEncryptionZonesWithKMS.java:[102,25]
error: reference to LOG is ambiguous
[INFO] 2 errors
{code}
> Remove Commons Logger from FileSystem Class
> -------------------------------------------
>
> Key: HADOOP-17482
> URL: https://issues.apache.org/jira/browse/HADOOP-17482
> Project: Hadoop Common
> Issue Type: Improvement
> Components: common
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 4h 20m
> Remaining Estimate: 0h
>
> Remove reference to Commons Logger in FileSystem, it already has SLF4J, so
> it's a bit weird to be mixing and matching and interweaving loggers in this
> way. Also, my hope is to eventually migrate everything to SLF4J to simplify
> things for downstream consumers of the common library.
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