I am trying to implement a custom log appender for log4j and will need to initialize some resources before start and cleanup at the end. Somehow my stop method will not be executed. I’ve tried using LogManager.shutdown(); but I cannot see my method getting called. This is my appender class: And this is …
Tag: log4j2
Spring Boot Log4j2 configuration issue with log size maintenance
I have a spring boot application and using log4j2 to generate console and persists logs in a centos linux. I wanted to maintain only 5mb of log files in archive. But the problem is, my archived log files are 5mb in total. but my main console log which is saving in the main log file i.e wc-notification.out is …
Log4j2 customize file path with rollingFileAppender (Java)
I am migrating from log4j 1.x to log4j2 in my spring boot application. Being on log4j 1.x I used to define the properties as follows: in my CustomRollingFileAppender I would extend this class with the DailyRollingFileAppender, and would override the setName() method to change my ‘<base.path>’…
Why Log4j2 doesn’t write logs to a file?
This is my configuration log4j2.xml with path to file – src/com/tarasiuk/task_01/log/dataLogger.log: Structure of my project: What I do: change path to log file from src/com/tarasiuk/task_01/log/dataLogger.log to com/tarasiuk/task_01/log/dataLogger.log – no result. change level in <Logger> f…
Spring boot with log4j2. Configure log4j2 Spring-lookup
According to log4j2 documentation: The Spring Boot Lookup retrieves the values of Spring properties from the Spring configuration. This Lookup will return null values until Spring Boot initializes application logging. This Lookup requires log4j-spring-cloud-config-client be included in the application. What i…
Why is Log4j2 not logging inside Spring Boot Application?
I’m trying to use spring boot starter and spring boot starter web. So far I’ve got what I think is a pretty simple set up. I can see that the application is obviously finding and using the log4j2-spring.xml file so my question is why doesn’t anything from the MyRunner class log via log4j2? I…
How do I use Multiple Substitutions in Lookups for Log4J 2 configurations? Is it possible?
I have a situation in which I want Log4J 2 to determine which directory to use for logging. The pseudocode is as follows: The configuration I have for properties (in log4j2.xml) is as follows: What I think it should look like: What I’m not sure on is how to get both ${env:LOG_DIR} and ${sys:catalina.bas…
slf4j in library seems to ignore my log4j2 configuration
We use Log4j2 in our java-ee application. We use a library, where logging is programmed against SLF4J. In this library is a class, which logs a lot of stuff I do not want -> so I want to set LogLevel of this Logger to OFF. My log4j2.xml looks like this: But BaseSerializingTranscoder still logs errors. If I…
main ERROR Unable to locate appender “test” for logger config “test”
This is my log4j2 `JSON config when I use one file appenders it works fine. when I use two file appenders getting the error mention in the title.cant we add more than 1 file appenders. I don’t want to use a rolling file appender. Java code for creating logger variables Answer Try to define your appender…
Disable logging from log4j 2 library, how?
I’m using log4j 2 for logging and want to turn off the log messages from the library itself, e.g.: I got the following in my log4j2.XML file but I still get DEBUG messages like the one above: This question is not a duplicate of Disabling Log4J Output in Java because I don’t want to turn off all ou…