I am writing a spring-batch application, based on an example I found. When I run it in Eclipse, it produces some annoying INFO logs from deep inside the framework. I'd like to suppress that, so only my System.out statements show - for clarity.
I figured the logging is from the inherited commons-logging1.1.1.jar, that's in my classpath, because when I take out that reference I get errors about Logger.
Question1: Which framework is used for logging in my sample application and how can I change the default INFO to WARN?
Question2: will adopting Log4j just override this default behavior?
I've create two property files under /resources: commons-logging.properties, with this: org.apache.commons.logging.Log=org.apache.commons.logging.impl.SimpleLog, and simplelog.properties, with this: org.apache.commons.logging.simplelog.defaultlog=warn It worked. Thanks - –
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I am working on building a SpringBoot app with my workmates. We all have different preferred logging levels for the app. We have been battling back and forth with each other's logging changed to application.properties. Is there a way to move all of the logging.level.* stuff out of that application.properties file and into a ~logging.properties file or something? That way we can add that file to the .gitignore and not track that file so we can each leave our logging alone. We are using Java annotations and not xml btw.
I've tried adding #PropertySource("classpath:logging.properties") to the application file, but I read somewhere that the logging gets setup early on in the init process and this won't work. I tried it anyway and it doesn't work (so confirmed I guess).
I can't believe there's isn't more info on this out there.. I'd imagine the members of a dev team each want their own custom level of logging and don't want to keep stepping on each other's toes/commits.
You can just override it using a command line property. The fallback strategy will take command line -D args as the highest overriding priority.
https://docs.spring.io/spring-boot/docs/current/reference/html/spring-boot-features.html#boot-features-external-config
I would recommend to have logback.xml file inside resources/ with some defaults that works for everyone (more likely to the application in question) and then you can provide --logging.config=/path/to/your/very/custom/logback.xml file whenever you start the application locally.
That should work for everyone.
I have a large, Spring-based eCommerce framework as a codebase which makes use of pre configured log4j. I can override property values defined in log4j.properties.
I'd like to configure log4j to log asynchronously to console/file, I've attempted to define new/override appenders but am not seeing any output to console and am unsure why.
Is it possible to wrap current log4j into asynchronous calls?
I have a problem about logging in SystemOut.log with Websphere. Can someone help me?
I’m getting some unwanted warning written in the SystemOut.log file with Websphere Application Server (WAS). All of the warnings are being generated by OGNL (ognl.NoSuchPropertyException). These exceptions don’t affect the code flow. Hence I need to turn off the logging of these warnings.
Also I have configuration in log4j.properties file to control the filtration of the log messages to error.
It would be a great help if anyone can help what configuration I should do in WAS to avoid logging these warnings.
Regards
You can change the log level from WAS admin console. Servers->WAS->servername->troubleshooting->change log details level
Follow the path and you will see options to filter warning. For example to filer message from com.ibm.ws.*=WARN will filter all but WARN.
Hope this helps.
First, you have to determine what running component, inside your WAS instance, is generating these warning messages. Is it WebSphere itself, logging these warnings internally? or is it your code?
If the source is WebSphere, then perhaps, before setting the logging level to "error" or "severe", you may want to open a PMR with IBM. I never encountered OGNL warnings generated by WebSphere itself. These warnings, then, can be indicative of a problem in your WebSphere installation.
If the source is your application, then the way to cope with this situation depends on how OGNL, internally, is generating these messages:
If OGNL is simply writing log lines to System.out, then there's nothing you can do to suppress these lines.
If OGNL is logging through Log4J, then you should be able to set the log level of the OGNL logger(s) through your log4j.properties. If your log4j.properties changes aren't reflected, then it means that you have a classloading problem of some sort (the log4j.properties file being loaded by a different classloader than the one used to load your web application).
If OGNL is using a different logging framework (such as SLF4J or Commons Logging), then you'll have to read through the documentation of these frameworks to learn how to tune the logging level.
I'm confused as to how the errors are logged without me implicitly catching them and logging out the error. All that I've done is put a log4j.xml file in my project defining appenders and now the logs catch and log everything from the frameworks.
If I say, try to query in Hibernate and the query fails, or I try to open a file that doesn't exist, or I get a null pointer exception, if the log4j.xml file defines a log file, and the error level is set correctly, then the error will be captured there?
How does my spring web app capture errors that I didn't catch and log? Is this a result of apache commons logging?
Or is this some magic that log4j knows how to deal with - catch stream to the console etc?
Any info appreciated.
From spring official documentation:
The nice thing about commons-logging is that you don't need anything else to make your application work. It has a runtime discovery algorithm that looks for other logging frameworks in well known places on the classpath and uses one that it thinks is appropriate (or you can tell it which one if you need to). If nothing else is available you get pretty nice looking logs just from the JDK (java.util.logging or JUL for short). You should find that your Spring application works and logs happily to the console out of the box in most situations, and that's important.
To make Log4j work with the default JCL dependency (commons-logging)
all you need to do is put Log4j on the classpath, and provide it with
a configuration file (log4j.properties or log4j.xml in the root of the
classpath).
Take a look for a complete explanation: http://static.springsource.org/spring/docs/3.0.x/reference/overview.html#d0e743
Need to disable log4j output to console during jUnit tests running but all other log4j output should be enable. There are lot exceptions during testing while checking method reaction on incorrect argument, so exception is ok.
Create a new log4j properties file called e.g. log4j-test.properties with logging disabled. In your surefire config in the POM, add argLine with -Dlog4j.configuration=log4j-test.properties.
I know this question is quite old, but still relevant in my opinion, so I'll add an alternative answer.
If you just want to disable (or reduce) logging for certain tests, or for some reason want to do it from code rather than creating a config file, you could do the following:
RootLogger.getRootLogger().setLevel(Level.OFF);