On Mon, Jun 21, 2010 at 04:34:07PM -0500, Thornton, Susan M. (LARC-B702)[RAYTHEON TECHNICAL SERVICES COMPANY] wrote: > We have Google crawling our DSpace site daily and it really fills up > our DSpace .log files. We would like to implement a second > dspace.log file (google.log?) in DSpace 1.5.1 and would like to know > if this is an easy thing to accomplish. Has anyone done this?
I haven't tried that. I rummaged around in <a href='http://logging.apache.org/log4j/1.2/index.html'>the documentation for log4j</a> and found hints about a component called a "filter", and there are some filters which look promising. I think what you'd do is set up two appenders subject to opposite senses of the same filter for a characteristic pattern, so that one would export all of the Google records and the other all of the not-Google records. log4j.rootCategory would then be set to use both appenders. The end-user documentation for log4j is thin. You'll very likely need to read the javadoc. (Maybe not -- there's a book on log4j but I haven't seen it.) The configuration language is discussed in org.apache.log4j.PropertyConfigurator. > Also we'd like to know where to tell DSpace to allow more than the > current 500 versions of our rolling DSpace .log files? Logging is configured in '[DSpace]/config/log4j.properties'. You can set log4j.appender.A1.MaxBackupIndex to as many as you want to keep. Beware! the value 0 means "keep no backups" -- it seems there is no way to express "keep them all forever". You might wish to consider a different appender. DailyRollingFileAppender cuts off the log at various intervals and renames it according to a date pattern that you specify. (OTOH its documentation recommends using something similar out of the <a href='http://logging.apache.org/log4j/companions/extras/index.html'> log4j "extras" collection</a> due to synchronization problems.) -- Mark H. Wood, Lead System Programmer [email protected] Balance your desire for bells and whistles with the reality that only a little more than 2 percent of world population has broadband. -- Ledford and Tyler, _Google Analytics 2.0_
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