my log4j setup is following. When I run as Boot App, the logs are correctly written in console, debug.log and dump.log. Below is what I do in my program to write log in console and debug.log
static final Logger LOG = Logger.getLogger(EnvironmentLoader.class);
LOG.info("blah blah!");
Below is what I do in my program to write log in dump.log
private static final Logger DUMP_LOG = Logger.getLogger("dumpLogger");
DUMP_LOG.info("blah blah!");
Both works fine if I run as Spring Boot App. If I package it as war and run in tomcat, DUMP_LOG writes correctly in dump.log but LOG is not writing in console or debug.log. I wonder why.
log4j.rootLogger=INFO, stdout, debugLog
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %-5p %c.%M:%L - %m%n
log4j.appender.stdout.Target=System.out
log4j.appender.debugLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.debugLog.Append=true
log4j.appender.debugLog.DatePattern='.'dd-MM-yyyy
log4j.appender.debugLog.File=${catalina.base}/logs/debug.log
log4j.appender.debugLog.MaxFileSize=10MB
log4j.appender.debugLog.encoding=UTF-8
log4j.appender.debugLog.layout=org.apache.log4j.PatternLayout
log4j.appender.debugLog.layout.ConversionPattern=%d %-5p %c.%M:%L - %m%n
log4j.category.debugLogger=DEBUG, debugLog
log4j.additivity.debugLogger=false
log4j.appender.dumpLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.dumpLog.Append=true
log4j.appender.dumpLog.DatePattern='.'dd-MM-yyyy
log4j.appender.dumpLog.File=${catalina.base}/logs/dump.log
log4j.appender.dumpLog.MaxFileSize=10MB
log4j.appender.dumpLog.encoding=UTF-8
log4j.appender.dumpLog.layout=org.apache.log4j.PatternLayout
log4j.appender.dumpLog.layout.ConversionPattern=%d - %m%n
log4j.category.dumpLogger=DEBUG, dumpLog
log4j.additivity.dumpLogger=false
The following dependency resolved the issue.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j</artifactId>
</dependency>
Related
Getting below error when run the batch file.
log4j:WARN No appenders could be found for logger (devpinoyLogger).
log4j:WARN Please initialize the log4j system properly.
One quick way to fix this is to add a log4j.properties file in main/src/test/resources.
Here's a sample log4j.properties file that will output logs to the console:
# Set root logger level to INFO and its only appender to stdout.
log4j.rootLogger=INFO, stdout
# Define the stdout appender to output logs to the console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} [%t] %-5p %c %x - %m%n
I am working on developing mapreduce using eclipse , and trying to test it using hadoop 2.6.0 windows standalone mode.
But getting the below error for log4j,
How to fix the below appender problem,
No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory)
same problem as hadoop log4j not working but no answer yet
Thanks ,
1- Create the file log4j.properties and put it in the location of
src/main/resources
the content of the log4j.properties
hadoop.root.logger=DEBUG, console
log4j.rootLogger = DEBUG, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n
it happens because of the hadoop logging framework
Create a log4j.properties file with something like the following:
hadoop.root.logger=DEBUG, console
log4j.rootLogger = DEBUG, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n
I've create a simple maven application and using log4j logger. My application is not a WEB application. I've tried to copy log4j.properties everywhere in java folder and everywhere across a project but still getting following error. Could you suggest how can I fix it?
log4j:WARN No appenders could be found for logger (org.springframework.web.client.RestTemplate).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
log4j.properties
# Root logger option
log4j.rootLogger=INFO, file, stdout
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=C:\\logging.log
log4j.appender.file.MaxFileSize=10MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
The log4j.properties file should be in a dirctory or JAR file that is on the classpath at runtime.
If you have a Maven project with the standard Maven project directory layout, then put the file in the directory src\main\resources - that way, Maven should put it in the right place for you when you compile your project.
Within my log4j.properties, log4j.rootLogger=DEBUG, stdout only shows debug data for hibernate. Can anyone explain this? I'm trying to debug other packages but none of them will work.
log4j.rootLogger=DEBUG, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %t %c:%L - %m%n
I realized that you do NOT have log4j in your pom, you need these 3 dependencies to log with log4j and slf4j:
slf4j-api-x.x.x.jar
slf4j-log4j12-x.x.x.jar
log4j-x.x.x.jar
log4j and slf4j-log4j12 should have the same version.
Please also note the commet from #Stefan Lindenberg
I would like to turn off log4j logging for Spring 3.1 while leaving things on debug for my own code.
I tried sticking this line into my log4j.properties:
log4j.category.org.springframework = WARN
To get this:
# Root Logger Setup: Includes the level of reporting and appenders -> where
# log messages get sent
log4j.rootLogger = DEBUG,ca,fa
log4j.category.org.springframework = WARN
#ca - Console Appender - Send messages to the console
log4j.appender.ca = org.apache.log4j.ConsoleAppender
log4j.appender.ca.layout = org.apache.log4j.PatternLayout
log4j.appender.ca.layout.ConversionPattern = [acme]: [%-5p] - %d{yyyy-MMM-dd HH:mm:ss} - %c{1}:%M(): %m%n
#fa - File Appender - Send messages to a log file
log4j.appender.fa = org.apache.log4j.RollingFileAppender
log4j.appender.fa.File = acme.log
log4j.appender.fa.MaxFileSize = 100KB
log4j.appender.fa.MaxBackupIndex = 10
log4j.appender.fa.Threshold = DEBUG
log4j.appender.fa.layout = org.apache.log4j.PatternLayout
log4j.appender.fa.layout.ConversionPattern = [%-5p] - %d{yyyy-MMM-dd HH:mm:ss} - %c{2}:%M(): %m%n
No luck in shutting off the debug output from Spring though.
Thanks in advance for any help
Steve
Are all your dependencies in place?
1.3.2.3 Using Log4J
Many people use Log4j as a logging framework for configuration and management purposes. It's efficient and well-established, and in fact it's what we use at runtime when we build and test Spring. Spring also provides some utilities for configuring and initializing Log4j, so it has an optional compile-time dependency on Log4j in some modules.
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). So for Maven users this is your dependency declaration:
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.0.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
<scope>runtime</scope>
</dependency>
</dependencies>
And here's a sample log4j.properties for logging to the console:
log4j.rootCategory=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %t %c{2}:%L - %m%n
log4j.category.org.springframework.beans.factory=DEBUG
I figured this out.
In my classpath I have a directory C:\Classes for convenience when I am experimenting with things. I had another log4.properties file there, which was superseding the one packaged in my WAR making it look like the technique below wasn't working. I renamed the log4.properties in my C:\Classes and all is well.
Thanks to everyone who took a look and thanks to the people at Spring Source who made doing this necessary. It is good to know that an extensive level of debugging is easily available to me when I want it instead of just getting a black box.