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Posted to dev@nutch.apache.org by GitBox <gi...@apache.org> on 2021/08/03 16:17:13 UTC

[GitHub] [nutch] sebastian-nagel commented on pull request #692: NUTCH-2885 Upgrade to Log4j2

sebastian-nagel commented on pull request #692:
URL: https://github.com/apache/nutch/pull/692#issuecomment-891980973


   > for `org.apache.hadoop` classes to only log WARN 
   
   +1
   
   Regarding the warning about missing appenders: I've also seen it but only in the logs of the ApplicationMaster and nevertheless the `syslog` file contains log messages obviously written via log4j. So, I don't know whether it's an issue at all and esp. for us because in the ApplicationMaster no Nutch classes are involved.
   
   > Does HADOOP-12956 stop us from implementing this
   
   I do not think so. But looks like the upgrade has no effect in (pseudo)distributed mode and the log4j.properties in `$HADOOP_HOME/etc/hadoop/` (or `/etc/hadoop/conf/`) takes precedence.


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