Github user davidyan74 commented on the pull request:
https://github.com/apache/incubator-apex-core/pull/92#issuecomment-144555663
+1 for leaving it as DEBUG in the log4j.properties in the archetype. This
is because in most cases, the archetype is used by someone who wants to try out
developing his/her own first application. The user is very likely to try
putting some logger.debug statements to see what's going on. The user can
later switch to INFO or even WARN as desired, or even remove the
log4j.properties from the APA altogether and use hadoop's default. We can add a
couple sentences about this in our Application Package doc.
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