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Questions tagged [logback]

Modern logging facility for Java-based programs with many new features when compared to Log4J and java.util.logging.

Logback is intended as a successor to the popular log4j project. It was designed by Ceki Gülcü, log4j's founder. It builds upon a decade of experience gained in designing industrial-strength logging systems. The resulting product logback is faster and has a smaller footprint than all existing logging systems, sometimes by a wide margin. Logback also offers unique and rather useful features such as Markers, parameterized logging statements, conditional stack tracing and powerful event filtering. These are only a few examples of the useful features logback has to offer.

For its own error reporting, Logback relies on Status objects, which greatly facilitate troubleshooting. You may wish to rely on Status objects in contexts other than logging. Logback-core bundles Joran, a powerful and generic configuration system, which can be put to use in your own projects to great effect.

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Logback failsafe to console logging

I'm migrating a legacy app to use logback, in the process I'm trying to keep all of the old functionality working in the same way. One thing the legacy app did was log to the console if the log file could not be written (due to lack of space, bad…
case nelson
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logback configuration files per jar

I would like to deliver jar files with its own logback logging configuration. The common way to configure logback is with the default file logback.xml that logback library reads from the classpath's root (works for application servers or not). You…
Jonathan Barbero
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Which Logback Appender to use to send new events to splunk via REST reciever endpoint?

Which Logback appender should I use if I want to create new events using the Splunk's REST receivers endpoint if I'm using logback framework. I want to make a custom basic appender for that? Is it socket appender?
user1294663
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SLF4J code snippet to log messages into a file

I am currently using SLF4J with log4j-over-slf4j and logback-classic. The program processes files in a loop. I need to create a separate log file for each iteration of the program. Can someone point me to the sample code or code snippet? I have done…
srini.venigalla
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Logback stops logging on file change

Wrote a small test and found that when logging to a file and opening that file in vi, editing and then saving it - Logback stops writing to that file. No apparent errors in the process that is writing the logs. It keeps running but no logs are…
YaOg
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Akka disable logging to sysout

Our application uses akka actors (v. 1.1.2) that throw exception from time to time. We would like to have those exceptions logged and are using event-handlers = ["akka.event.slf4j.Slf4jEventHandler"] to turn on the logging using slf4j/logback.…
Jiří Šitina
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unable to read env variables in logback

Does logback read environment variables during variable substitution? I'm getting REM_HOME_IS_UNDEFINED on the console during app startup. The variable exists though. The manual says that env variables are looked up last in the food chain.…
Deepak Marur
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No Output in the log file generated by logback

Possible Duplicate: How To Setup Logback with Tomcat 6 on Windows I have setup logback on my tomcat6 on Windows 7, copied [logback-access-0.9.13],[logback-classic-0.9.13],[logback-core-0.9.13] in $TOMCAT_HOME/lib and copied logback-access.xml in…
Noman Amir
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How To Setup Logback with Tomcat 6 on Windows

I have tomcat6 installed on my Windows desktop for testing purpose. At the moment nothing is added to the webapps folder, just the normal tomcat start up. Following log files are…
Noman Amir
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Programmatically Enable Logback in Debug Mode?

I was wondering if there is a way to enable debug mode programmatically. Since I'm not allowed to use configuration file, I'm currently configure everything programmatically. Recently, I ran into an issue where RollingFileAppender stop writing to…
juminoz
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java.security.policy issue using logback

The following code runs file using LOG4J (and SLF4J): package test; import java.rmi.RMISecurityManager; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class TestMain { private static final Logger logger =…
AndrewBourgeois
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Component-based logging with logback (or: intercept foreign log messages)

I'm looking for a way to define transitive log message routing. Let's say we have an application called poly with these packages: com.mycompany.server-common com.mycompany.communication com.mycompany.webservice server-common is used by both of the…
mkraemerx
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Can't turn off debug logs in console even after setting configuration

i cannot turn off debug logs in console even after setting in configuration like this-> %d{HH:mm:ss.SSS} [%thread]…
alpha
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Getting error : LOGBACK: No context given for net.logstash.logback.LogstashFormatter

I am trying to print a log in the SpringBoot Application using Logback and the following configuration, but the logs are not printing. Spring-boot version 2.7.2 and Java version 17 are being used. In pom.xml …
Ranjit Soni
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How do I get JSONObject as a StructuredArgument in a LogStashEncoder logback output?

I am using logback and LogstashEncoder to write JSON format logging to the console. I am using StructuredArguments to pass the objects I want in the log from my code to the logger. However my JSONObject is not appearing as a structured object in the…
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