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https://issues.apache.org/jira/browse/MAHOUT-52?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved MAHOUT-52.
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Resolution: Fixed
> Standardize on java.util.logging, Commons Logging, log4j?
> ---------------------------------------------------------
>
> Key: MAHOUT-52
> URL: https://issues.apache.org/jira/browse/MAHOUT-52
> Project: Mahout
> Issue Type: Improvement
> Reporter: Sean Owen
> Priority: Minor
>
> I see the log4j and Commons Logging .jars in the lib/ directory. log4j isn't
> used; Commons Logging is used in one class (Parametered). My code just used
> java.util.logging directly.
> I figure we should standardize on one approach to logging. I personally think
> they're all just about the same; the only real best practice is using one
> system.
> I have always just used java.util.logging since it is built into Java 1.4+.
> Commons Logging offers an extra layer of abstraction and lets you switch
> between java.util.logging and log4j underneath. That's cool, but I've not
> found it compelling enough to want to add another layer and another .jar file.
> But, I guess log4j is present because hadoop uses it directly? The .jar seems
> to have a dependency on it.
> In that case maybe we are better off using Commons Logging to let us
> integrate with log4j logging that Hadoop uses, and leave open the possibility
> of other callers using java.util.logging underneath.
> If that's cool I can switch my code to use Commons Logging.
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