翻译I need to poll the JVM memory stats of my running application on a regular basis. I'm running a service that does this and writes the stats to the root Logger (I don't have much control over Root Logger usage or not).
What I want to do is route just these logging messages to a single appender. This appender should only process logging messages from this one class, and not from any other class. The other appenders shouldn't receive the messages from this one class.
So far I have the log messages only going to this 'memoryStats' appender. However, all the other logging message are also going to that appender, and I need to get rid of them, but I'm not sure how short of listing out every single class which would be a nightmare.
log4j.rootCategory=info, A1, R, MEM # A1 is set to be a ConsoleAppender. log4j.appender.A1=org.apache.log4j.ConsoleAppender # A1 uses PatternLayout. log4j.appender.A1.layout=org.apache.log4j.PatternLayout log4j.appender.A1.layout.ConversionPattern=[%p] %d{dd MMM yyyy HH;mm:ss,SSS} %t %c{2} (line:%L) - %m%n log4j.appender.R=org.apache.log4j.RollingFileAppender log4j.appender.R.File=logs/ui.log log4j.appender.R.MaxFileSize=100MB # Keep backup files log4j.appender.R.MaxBackupIndex=9 log4j.appender.R.layout=org.apache.log4j.PatternLayout log4j.appender.R.layout.ConversionPattern=[%p] %d{dd MMM yyyy HH;mm:ss,SSS} %t %c{2} (line:%L) - %m%n log4j.category.foo.bar.services.App.MemoryStats=debug, MEM log4j.additivity.foo.bar.services.App.MemoryStats=false log4j.appender.MEM=org.apache.log4j.RollingFileAppender log4j.appender.MEM.File=logs/memStats.log log4j.appender.MEM.MaxFileSize=100MB # Keep backup files log4j.appender.MEM.MaxBackupIndex=9 log4j.appender.MEM.layout=org.apache.log4j.PatternLayout log4j.appender.MEM.layout.ConversionPattern=[%p] %d{dd MMM yyyy HH;mm:ss,SSS} %t %c{2} (line:%L) - %m%n