log4j2 writing method and class - java

I'm using log4j2 in a java program..
this is the line of code where it is initialized
private static final Logger logger = LogManager.getLogger("application-
log");
and this is the configuration file where the format is decided
<?xml version="1.0" encoding="UTF-8"?>
<Configuration monitorinterval="30" status="info" strict="true">
<Properties>
<Property name="logApplicativo">../logs/logApplicativo.log</Property>
<Property name="logCdr">../logs/logCdr.log</Property>
</Properties>
<Appenders>
<Console name="STDOUT">
<PatternLayout pattern="%m MDC%X%n"/>
</Console>
<RollingRandomAccessFile name="fileLogApplicativo"
fileName="${logApplicativo}" filePattern="${log-Applicativo}-%d{yyyy-MM-
dd}-%i.log" immediateFlush="false" append="true"
ignoreExceptions="false" >
<PatternLayout>
<pattern>%d [%-6p] %C.%M(%F:%L) - %m%n</pattern>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="5 MB"/>
</Policies>
<DefaultRolloverStrategy max="30"/>
</RollingRandomAccessFile >
<RollingRandomAccessFile name="fileLogCdr" fileName="${logCdr}"
filePattern="${log-Cdr}-%d{yyyy-MM-dd}-%i.log" >
<PatternLayout>
<pattern>%d %-5p %c{2} - %m%n</pattern>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="5 MB"/>
</Policies>
<DefaultRolloverStrategy max="30"/>
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<AsyncRoot level="error">
<AppenderRef ref="STDOUT"/>
</AsyncRoot>
<AsyncLogger name="application-log" level="debug" additivity="false">
<AppenderRef ref="fileLogApplicativo" level="debug"/>>
</AsyncLogger>
<AsyncLogger name="cdr-log" level="debug" additivity="false">
<appender-ref ref="fileLogCdr" level="debug"/>
</AsyncLogger>
</Loggers>
I do not understand why, but class name, code name, line code arent printed. Probably the problem is trivial but I'm going crazy from one day.
Thank you all

If you're using asynchronous loggers or asynchronous appenders try adding includeLocation="true" to your logger or appender configuration.
You can read more about it in the log4j2 manual

Related

How to split catalina.out for tomcat?

I have log4j2.xml properties:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout
pattern="%style{%d{ISO8601}}{black} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{1.}}{bright,yellow}: %msg%n%throwable" />
</Console>
<RollingFile name="RollingFile"
fileName="/opt/tomcat/mylogs/logs.log"
filePattern="/opt/tomcat/mylogs/$${date:yyyy-MM}/log-%d{-dd-MMMM-yyyy}-%i.log.gz">
<PatternLayout>
<pattern>%d %p %C{1.} [%t] %m%n</pattern>
</PatternLayout>
<Policies>
<!-- rollover on startup, daily and when the file reaches 50 MegaBytes -->
<OnStartupTriggeringPolicy />
<SizeBasedTriggeringPolicy
size="50 MB" />
<TimeBasedTriggeringPolicy />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<!-- LOG everything at INFO level -->
<Root level="info">
<AppenderRef ref="Console" level="info" />
<AppenderRef ref="RollingFile" level="info" />
<AppenderRef ref="SmtpAppender" level="exception"/>
</Root>
<Logger name="com.kot" level="debug">
<AppenderRef ref="RollingFile"/>
</Logger>
</Loggers>
</Configuration>
But this properteis create logg files on another folder on server: "/opt/tomcat/mylogs/logs.log"
I want to split catalina.out logs. This logs are located on "/opt/tomcat/logs/catalina.out" by default
Also, how to split server logs and application logs?

Log4j2 logging to console instead of files

I am using log4j2 and passing path to following configuration in my java program
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="trace" monitorInterval="30" shutdownHook="disable">
<Properties>
<Property name="folder">.</Property>
<Property name="customFormat">[%d{ISO8601}] [%5p] [%X{loggingId}] - [%t] - [%c] - %m%n%rEx%n</Property>
<Property name="accessFormat">%d{yyyy-MM-dd HH:mm:ss.SSS} %m%n</Property>
</Properties>
<Appenders>
<RollingRandomAccessFile name="access" fileName="${folder}/access.log"
filePattern="${folder}/access.log.%d{MM-dd-yyyy}.log.gz" immediateFlush="false">
<PatternLayout>
<pattern>${accessFormat}</pattern>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
</Policies>
<DefaultRolloverStrategy max="10" />
</RollingRandomAccessFile>
<RollingRandomAccessFile name="service" fileName="${folder}/service.log"
filePattern="${folder}/service.%i.log.gz" immediateFlush="false">
<Filters>
<ThresholdFilter level="ERROR" onMatch="DENY" onMismatch="NEUTRAL"/>
</Filters>
<PatternLayout>
<pattern>${customFormat}</pattern>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
</Policies>
<DefaultRolloverStrategy max="3" />
</RollingRandomAccessFile>
<RollingRandomAccessFile name="all" fileName="${folder}/all.log"
filePattern="${folder}/all.%i.log.gz" immediateFlush="false">
<Filters>
<ThresholdFilter level="ERROR" onMatch="DENY" onMismatch="NEUTRAL"/>
</Filters>
<PatternLayout>
<pattern>${customFormat}</pattern>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
</Policies>
<DefaultRolloverStrategy max="2" />
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<AsyncLogger name="com.mysvc.netty.handlers.LoggingHandler" level="error"/>
<AsyncLogger name="org.apache.http" level="info" additivity="false">
<AppenderRef ref="access" />
</AsyncLogger>
<AsyncLogger name="com.mysvc.tns" level="INFO" additivity="false">
<AppenderRef ref="service" />
</AsyncLogger>
<AsyncLogger name="com.mysvc.netty" level="info" additivity="false">
<AppenderRef ref="service" />
</AsyncLogger>
<Root level="info">
<AppenderRef ref="all"/>
</Root>
</Loggers>
</Configuration>
I want to write access logs, service related logs and all other logs in files as specified in my configuration but for some reasons log4j2 is writing everything in my console, I can see all of the required files getting created but file size is 0. What's wrong in my configuration?

log4j is logging in the console but not creating a log file

I am using log4j in my project. The project is working fine but it is not creating a log file.
Here is the log4j.xml
<Configuration status="warn">
<Properties>
<Property name="logHome">D:/logs</Property>
</Properties>
<Appenders>
<Console name="console" target="SYSTEM_OUT">
<PatternLayout pattern="%-5p: %c - %m%n" />
</Console>
<RollingFile name="rollingFile" immediateFlush="true" fileName="${logHome}/mySample.log" filePattern="${logHome}/mySample-%i.log">
<PatternLayout>
<Pattern>%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} |[%t]| %-5p | %c{1} | %L - %m%n</Pattern>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="5 MB" />
</Policies>
<DefaultRolloverStrategy max="10" />
</RollingFile>
</Appenders>
<Loggers>
<Logger name="org.springframework" level="info" includeLocation="true" />
<Logger name="org.hibernate" level="info" includeLocation="true" />
<Logger name="org.project" level="debug" includeLocation="true" />
<Root level="info" includeLocation="true">
<AppenderRef ref="rollingFile" />
<AppenderRef ref="console" />
</Root>
</Loggers>
</Configuration>
Any help is appreciated. Thanks in advance.
I tried all the ways out but nothing worked for me. At the end I had to switch to slf4j.Logger and slf4j.LoggerFactory. With the help of this I was able to generate logs.
Example:
private static final Logger LOGGER=LoggerFactory.getLogger(MyClass.class);

log4j: How can I direct logs into different files for a cron and for a webservice?

I have a Cron and a Webservice, both implemented using spring. The cron and the webservice use a set of classes A, B and C to achieve their objective.
In each class, I use log4j 2 as the logging mechanism as so:
Logger log = LogManager.getLogger(A.class.getName());
In the log4j.xml, I have a single RollingAppender which logs to a file.
Now, I would like the Cron to log to a different file i.e. use a different appender. But if I set the category for the cron to use a different appender, that still doesn't cause the logs from A, B and C to go into that appender.
Update: log4j configuration:
<Configuration status="warn" name="mylogger" packages="">
<Properties>
<Property name="baseDir">/var/log/tomcat</Property>
</Properties>
<Appenders>
<RollingFile name="RollingFile" fileName="${baseDir}/app.log"
filePattern="${baseDir}/$${date:yyyy-MM}/app-%d{yyyy-MM-dd}.log.gz">
<PatternLayout><Pattern>%5p %d{ISO8601} [%t][%x] %c - %m%n</Pattern></PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="RollingFile"/>
</Root>
</Loggers>
</Configuration>
You can use below mentioned configuration if you want to log into different files using same class.
<Appenders>
<Console name="CONSOLE" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
</Console>
<RollingFile name="rollingFileAppender"
fileName="/data/abc.log"
filePattern="/data/abc-%d{MM-dd-yyyy}-%i.log">
<PatternLayout>
<Pattern>%d{ISO8601} %-5p [%t] (%F:%L) - %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1"
modulate="true" />
<SizeBasedTriggeringPolicy size="50 MB" />
</Policies>
</RollingFile>
<RollingFile name="rollingFilesAppender"
fileName="/data/cde.log"
filePattern="/data/fgh-%d{MM-dd-yyyy}-%i.log">
<PatternLayout>
<Pattern>%d{ISO8601} %-5p [%t] (%F:%L) - %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1"
modulate="true" />
<SizeBasedTriggeringPolicy size="50 MB" />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Root level="ERROR">
<AppenderRef ref="CONSOLE" />
</Root>
<Logger name="rollingFilesLogger" additivity="false" level="WARN">
<AppenderRef ref="rollingFilesAppender" />
</Logger>
<Logger name="com.log4jtest" additivity="false" level="INFO">
<AppenderRef ref="rollingFileAppender" />
</Logger>
</Loggers>
In Java file you can use like :
private static final Logger LOGGER = LogManager.getLogger(Hello.class);
private static final Logger SECOND_LOGGER = LogManager.getLogger("rollingFilesLogger");
Using this you will be able to send logs in two different files.
Ref : https://github.com/ragnar-lothbrok/log4j2-example

log4j2 xml configuration log to 2 files

can anyone see what's is wrong with this xml configuration? It's to setup 2 different log files then log trace to 1 file and info to another:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
<Appenders>
<RollingRandomAccessFile name="LogTrace" fileName="../logs/Trace.log" filePattern="../logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d %p %c{1.} [%t] %m %ex%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="25 MB"/>
</Policies>
</RollingRandomAccessFile>
<RollingRandomAccessFile name="LogInfo" fileName="../logs/Info.log" filePattern="../logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d %p %c{1.} [%t] %m %ex%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="25 MB"/>
</Policies>
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<Logger name="monitor" level="info">
<AppenderRef ref="LogInfo" level="info"/>
</Logger>
<Root level="trace">
<AppenderRef ref="LogTrace" level="trace"/>
</Root>
</Loggers>
</Configuration>
The LogTrace is working but not the LogInfo...
In your code, do you use the monitor logger like this:
Logger logger = LogManager.getLogger("monitor");
logger.info("test info message");
The above should work since your config declares the info level logger with name "monitor".
Using the configuration below along with the code supplied by Remko in his answer did exactly what I am looking for:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
<Appenders>
<RollingRandomAccessFile name="LogTrace" fileName="../logs/Trace.log" filePattern="../logs/$${date:yyyy-MM}/tracelog-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d %p %c{1.} [%t] %m %ex%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="25 MB"/>
</Policies>
</RollingRandomAccessFile>
<RollingRandomAccessFile name="LogInfo" fileName="../logs/Info.log" filePattern="../logs/$${date:yyyy-MM}/infolog-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d %m %ex%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="25 MB"/>
</Policies>
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<Logger name="monitor" level="all">
<AppenderRef ref="LogInfo" level="info"/>
<AppenderRef ref="LogTrace" level="trace"/>
</Logger>
</Loggers>
</Configuration>
It's about as simple as it can be... once you have spent a few DAYS mulling over the various configuration options!

Categories

Resources