log4j

问题 I have the following layout patter in my log4j xml file: "%d{ISO8601} %c %p [%t] [%x] 9.5.4.RC12 %m%n" What I want is that when ever I get a log containing message process [proc#] completed , it should be skipped. I mean every log except the one containing this message should be printed. [proc#] will contain the process number of max lenght 4. What can I desing a filter with this function in my xml config file. If so, then how? 回答1: ExpressionFilter can do that. In a filter definition inside

问题 I'm using log4j-extras (1.2.17) org.apache.log4j.rolling.RollingFileAppender with a org.apache.log4j.rolling.TimeBasedRollingPolicy that rolls daily. Is there a similar property to maxBackupIndex in log4j's org.apache.log4j.RollingFileAppender (note the package difference) to limit the number of archived files? If not, is there another alternative for daily rolling with limited files? 回答1: If you want to limit the number of file created by log4j then use the DefaultRolloverStrategy and set

问题 when you write logger.error("message", exception); log4j produces the message and the complete stack trace : Aug 9 06:26:13 10.175.60.14 myPrefix: [error] [TP-Processor114] [my.class.Name] message : exception at fatherOfException at fatherof_fatherOfException at fatherof_fatherof_fatherOfException ... my conversion pattern is log4j.appender.syslog.layout.ConversionPattern=myPrefix: [%p] [%t] [%c] [%x] - %m%n So, is it possible to prefix every line with myPrefix, as : Aug 9 06:26:13 10.175.60

问题 when you write logger.error("message", exception); log4j produces the message and the complete stack trace : Aug 9 06:26:13 10.175.60.14 myPrefix: [error] [TP-Processor114] [my.class.Name] message : exception at fatherOfException at fatherof_fatherOfException at fatherof_fatherof_fatherOfException ... my conversion pattern is log4j.appender.syslog.layout.ConversionPattern=myPrefix: [%p] [%t] [%c] [%x] - %m%n So, is it possible to prefix every line with myPrefix, as : Aug 9 06:26:13 10.175.60

问题 My jobs are running successfully with Hadoop 2.6.0 but the logger is not working at all I always see log4j:WARN No appenders could be found for logger (org.apache.hadoop.mapreduce.v2.app.MRAppMaster). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. yarn-site.xml has the directory with the log4j.properties file listed. I also tried passing it manually via -Dlog4j.configuration option. the file is here:

问题 I'm having a problem with my Log4j.xml file. When I save a log file like that: <appender name="file" class="org.apache.log4j.DailyRollingFileAppender"> <param name="append" value="true" /> <param name="datePattern" value="_dd.MM.yyyy_HH.mm.ss" /> <param name="file" value="/logs/dailyschedule.log" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d{dd.MM.yyyy HH:mm:ss} class:[%c] method:[%t] [%-5p] : %m%n"/> </layout> </appender> the file is ok, but has

问题 I checked all the answers in the SO . But none really helped me. My Log4j property file log4j.rootLogger=debug,console,file log4j.appender.console=org.apache.log4j.ConsoleAppender log4j.appender.console.layout=org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern=%d %5p [%t] (%F:%L) - %m%n log4j.appender.file=org.apache.log4j.RollingFileAppender log4j.appender.file.File=eseries.log log4j.appender.file.MaxFileSize=1KB log4j.appender.file.layout=org.apache.log4j

问题 I have use log4j-1.2.17 bundle from Maven repo. I try to do this code in the bundle (my bundle calls to the log4j-1.2.17 bundle) PropertyConfigurator.configure(props()); private static Properties props() { Properties props = new Properties(); props.put("log4j.rootLogger", "INFO, R"); props.put("log4j.appender.R", "org.apache.log4j.DailyRollingFileAppender"); props.put("log4j.appender.R.File", "logs/IhtikaClient.log"); props.put("log4j.appender.R.Append", "true"); props.put("log4j.appender.R

问题 I recently discovered that there was log4j extension for application insights. So following the example online I attempted to configure application insights and log4j to log items from my servlets living in an azure hosted tomcat. Well, the example seems very incomplete as it never makes mention of the key at all. From looking through the source I see an example (test?) that uses <param> within the log4j.xml but not much explanation of how to use or debug the actual logger. Does anyone out