After a lot of research, I am able to find 3 ways to log & monitor database connection pool. https://tomcat.apache.org/tomcat-8.0-doc/jdbc-pool.html Monitoring using Spring Boot properties. Monitoring using JMX ( Java Management Extensions ) (as @nitin suggested) Monitoring using Spring Aspects. 1st Way: Monitoring using Spring Boot properties. I found below Spring boot properties which will … Read more
Simply configure your fifth class to use the log-level OFF: log4j.logger.com.example=INFO, MyAppender log4j.logger.com.example.FifthClass=OFF Actually I suggest you don’t set it to OFF, but to FATAL. ERROR or even WARN instead. The main reason to want to ignore logging from some class is usually if it logs to much (more than is useful and makes it … Read more
You can use sysout-over-slf4j. The sysout-over-slf4j module allows a user to redirect all calls to System.out and System.err to an SLF4J defined logger with the name of the fully qualified class in which the System.out.println (or similar) call was made, at configurable levels. If you are not using Maven, download the jar and add it … Read more
From http://logging.apache.org/log4j/1.2/faq.html#3.6 Is there a way to get log4j to automatically reload a configuration file if it changes? Yes. Both the DOMConfigurator and the PropertyConfigurator support automatic reloading through the configureAndWatch method. See the API documentation for more details. Because the configureAndWatch launches a separate wathdog thread, and because there is no way to stop … Read more
Try this: <configuration> <appender name=”FILE” class=”ch.qos.logback.core.FileAppender”> <file>${user.home}/database.log</file> <append>false</append> <encoder> <pattern>%-5relative %-5level %logger{35} – %msg%n</pattern> </encoder> </appender> <appender name=”STDOUT” class=”ch.qos.logback.core.ConsoleAppender”> <encoder> <pattern>%-5relative %-5level %logger{35} – %msg%n</pattern> </encoder> </appender> <logger name=”jdbc” level=”OFF” /> <logger name=”jdbc.sqlonly” level=”INFO” additivity=”false”> <appender-ref ref=”FILE” /> </logger> <root level=”ERROR”> <appender-ref ref=”STDOUT” /> </root> </configuration>
My suggestion is, why dont you write your OutputStream then?! I was about to write one for you, but I found this good example on the net, check it out! LogOutputStream.java /* * Jacareto Copyright (c) 2002-2005 * Applied Computer Science Research Group, Darmstadt University of * Technology, Institute of Mathematics & Computer Science, * … Read more
Disclaimer: I am the founder of log4j, slf4j and logback projects but unaffiliated with log4j 2.0. As I understand it, notwithstanding its name, log4j 2.0 is very different than log4j 1.x. As far as the user API is concerned, log4j 2.0 is largely incompatible with log4j 1.x. Log4j 2.0 provides an adaptation layer for log4j … Read more
I consider fatal errors to be when your application can’t do any more useful work. Non-fatal errors are when there’s a problem but your application can still continue to function, even at a reduced level of functionality or performance. Examples of fatal errors include: Running out of disk space on the logging device and you’re … Read more
You can use a EnhancedPatternLayout in log4j to format your stacktraces. See http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/EnhancedPatternLayout.html, specifically the section about the “throwable” pattern in the pattern table. Note that support for the %throwable{n} support is rather new and requires at least log4j 1.2.16 (which is the latest at time of writing) For tracking purposes, this is the ticket … Read more
log4j extras has support for that. Just add the following to your RollingFileAppender configuration and have the filename end in .gz to automagically compress your log files: <appender…> <rollingPolicy class=”org.apache.log4j.rolling.TimeBasedRollingPolicy”> <param name=”FileNamePattern” value=”/wombat/foo.%d{yyyy-MM}.gz”/> </rollingPolicy> </appender> For more details check the Javadoc