private static final Logger log = LogManager.getLogger(ABC.class);
private static final Logger resultLog = LogManager.getLogger("ResultLog");
How can we define a appender that would only logs specific to "ResultLog" logger?
My current Log4j2.xml file looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="ABC" packages="">
<Appenders>
<RollingFile name="RollingFile" fileName="logs/ABC.log"
filePattern="logs/$${date:yyyy-MM}/ABC-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d [%t] %p %c{1.} %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="250 MB"/>
</Policies>
</RollingFile>
<File name="resultFile" fileName="logs/result.log">
<PatternLayout pattern="%m%n"/>
</File>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d [%t] %p %c{1.} %m%n"/>
</Console>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="RollingFile"/>
<AppenderRef ref="Console"/>
<AppenderRef ref="resultFile"/>
</Root>
</Loggers>
</Configuration>
thanks
Add
<Logger name="ResultLog">
<AppenderRef ...>
</Logger>
to the Loggers tag.
You can refer to this manual: https://logging.apache.org/log4j/2.x/manual/configuration.html#XML
Related
I changed my logging from sync to async but I am not sure how to put policies on it. I want to apply my sync logging settings to async logging. Please see below.
// I switched from this
<RollingFile name="fileLogger" fileName="${logPath}/log.log"
filePattern="${logPath}/log-%d{yyyy-MM-dd-hh}-%i.log">
<PatternLayout>
pattern="${logPattern}"/>
</PatternLayout>
<Policies>
<OnStartupTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="10 MB"/>
</Policies>
<DefaultRolloverStrategy max="5"/>
</RollingFile>
</Appenders>
//to this
<File name="prodLog" fileName="${logPath}/log.log">
<PatternLayout
pattern="${logPattern}"/>
</File>
<Async name="asyncLogger" includeLocation="true">
<AppenderRef ref="prodLog"/>
<ArrayBlockingQueue/>
</Async>
I dont think you can use the same policies for the File appender.
To achieve an asynchronous behavior for a rolling file, you could use the RollingRandomAccessFile, just like the following example:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="debug">
<Appenders>
<Console name="Console-Appender" target="SYSTEM_OUT">
<PatternLayout>
<pattern>
[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n
</pattern>>
</PatternLayout>
</Console>
<RollingRandomAccessFile name="Rolling-Random-Access-File-Appender"
fileName="logs/rollingrandomaccessfile.log"
filePattern="archive/logs/rollingrandomaccessfile.log.%d{yyyy-MM-dd-hh-mm}.gz">
<PatternLayout pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"/>
<Policies>
<SizeBasedTriggeringPolicy size="1 KB"/>
</Policies>
<DefaultRolloverStrategy max="30"/>
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<AsyncLogger name="guru.springframework.blog.log4j2async" level="debug">
<AppenderRef ref="Rolling-Random-Access-File-Appender"/>
</AsyncLogger>
<Root level="debug">
<AppenderRef ref="Console-Appender"/>
</Root>
</Loggers>
</Configuration>
More on this in this post: https://springframework.guru/asynchronous-logging-with-log4j-2/
Regards
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
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
I'm looking for a log4j2.properties snippet that I can drop in to src/test/resources just to make the No logj2 configuration file found warning disappear. If it contains other useful sample like configuration examples that's great as well.
Basically I'm looking for the .properties version of this:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss} %c{1.} [%t] %-5level} - %msg%n" />
</Console>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="Console" />
</Root>
</Loggers>
</Configuration>
I haven't tried it but this should do the trick.
status = error
name = PropertiesConfig
property.filename = target/logs/test.log
appender.file.type = File
appender.file.name = LogFile
appender.file.fileName = ${filename}
appender.file.layout.type = PatternLayout
appender.file.layout.pattern = %d %p %C{1.} [%t] %m%n
rootLogger.level = error
rootLogger.appenderRef.stdout.ref = LogFile
Here is a log4j2.xml that I actually use in some of my unit tests.
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="ERROR">
<properties>
<property name="LOG_DIR">target/logs</property>
</properties>
<MarkerFilter marker="FLOW" onMatch="ACCEPT" onMismatch="NEUTRAL"/>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{ABSOLUTE} %-5level # %class.%method %m%n" />
</Console>
<RollingFile name="log4j" fileName="${LOG_DIR}/log4j.txt" filePattern="${LOG_DIR}/archive/log4j.txt.%d{yyyyMMdd_HH}-%i">
<PatternLayout>
<MarkerPatternSelector defaultPattern="%d [%t] %-5p %X{loginId, userId, ipAddress, corpAcctNumber} %C{1.}.%M:%L - %m%n">
<PatternMatch key="FLOW" pattern="%d [%t] %-5p %X{loginId, userId, ipAddress, corpAcctNumber} -------- %C{1.}.%M:%L %msg --------%n"/>
</MarkerPatternSelector>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="30 MB"/>
</Policies>
<DefaultRolloverStrategy min="1" max="20"/>
</RollingFile>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="log4j" />
</Root>
</Loggers>
</Configuration>
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!