[ http://issues.apache.org/jira/browse/NUTCH-236?page=all ]
Chris A. Mattmann updated NUTCH-236:
------------------------------------
Due Date: 05/Jun/06
> PdfParser and RSSParser Log4j appender redirection
> --------------------------------------------------
>
> Key: NUTCH-236
> URL: http://issues.apache.org/jira/browse/NUTCH-236
> Project: Nutch
> Type: Bug
> Versions: 0.8-dev
> Environment: Linux, Nutch embedded in an other application
> Reporter: Jason Calabrese
> Assignee: Chris A. Mattmann
> Priority: Minor
>
> I just found a bug in the way the log messages from Hadoop LogFormatter are
> added as a new appender to the Log4j rootLogger in the PdfParser and
> RSSParser.
> Since a new Log4j appender is created and added to the root logger each time
> these classes are loaded log messages start getting repeated.
> I'm using Nutch/Hadoop inside an other application so other may not be seeing
> this problem.
> I think the simple fix is as easy as setting a name for the new appender
> before adding it and then at the begining of the constructor checking to see
> if it's already been added.
> Also as the comment says in both the PdfParser and RSSParser this code should
> be moved to a common place.
> I'd be happy to make these changes and submit a patch, but I wanted to know
> it
> the change would be welcome first. Also does anyone know a good place for
> the new util method? Maybe a new static method on LogFormatter, but then the
> log4j jar would need to be added to the to the common lib and the classpath.
> It would also be good to create a property in nutch-site.xml that could
> disable this logging appender redirection.
> Like I said above I'd be more than happy to do this work, I'll just need some
> guidance to follow the project's conventions.
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