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From GitBox <...@apache.org>
Subject [GitHub] [hadoop] aajisaka commented on issue #299: Support Log4j 2 and Logback
Date Fri, 22 Mar 2019 06:53:35 GMT
aajisaka commented on issue #299: Support Log4j 2 and Logback
URL: https://github.com/apache/hadoop/pull/299#issuecomment-475513092
 
 
   Thanks @rogers for the PR.
   After applying the patch, `mvn install -DskipTests` fails.
   
   ```
   [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
(default-testCompile) on project hadoop-hdfs-client: Compilation failure: Compilation failure:

   [ERROR] /Users/aajisaka/git/ghe.corp/hadoop-mirror/hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/util/TestByteArrayManager.java:[27,24]
cannot find symbol
   [ERROR]   symbol:   class Level
   [ERROR]   location: package org.apache.log4j
   [ERROR] /Users/aajisaka/git/ghe.corp/hadoop-mirror/hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestConfiguredFailoverProxyProvider.java:[88,21]
cannot access org.apache.log4j.Logger
   [ERROR]   class file for org.apache.log4j.Logger not found
   ```
   
   This is because many modules in Apache Hadoop call log4j1 API directly. We need to remove
the caller at all the projects.

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