I am new to coding and stackoverflow, We are using logback for logging our application, as of now we are using {fileName}.%d{yyyy-MM-dd}.log naming convention for the time based rolling policy (rolling take place each and every day) and have set 30 days as the maximum time for a log to be stored in the application. We need to change the naming convention to only date format ({fileName}.%d{dd}.log). But we are getting "The date format in fileNamePattern will result in collisions in the names of archived log files." error
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n
</Pattern>
</layout>
</appender>
<appender name="dailyRollingFileAppender"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>logs/deliveryService.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>
%d{HH:mm:ss.SSS} [%thread] %-5level %logger{35} - %msg %n
</Pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily -->
<fileNamePattern>logs/deliveryService.%d{yyyy-MM-dd}.log
</fileNamePattern>
<!-- Delete log after 30 days -->
<maxHistory>30</maxHistory>
</rollingPolicy>
</appender>
<!-- Send logs to both console and file audit -->
<logger name="com.bnsf" level="debug"
additivity="false">
<appender-ref ref="dailyRollingFileAppender" />
<appender-ref ref="STDOUT" />
</logger>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
Because in a month like February, with only 28/29 days, in a 30-day windows you will have deliveryService.01.log and deliveryService.02.log files twice.
Related
Is is possible to create logs at multiple locations using logback-spring.xml ?
I tried doing that but as soon as I give two locations it creates logs at default location .
Below is the mentioned logback-spring.xml:
<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="30 seconds">
<property name="springAppName" value="app-name"/>
<springProperty name="maxLogHistoryInDays" source="log.maxLogHistoryInDays"/>
<springProperty name="logPath" source="log.path"/>
<appender name="consoleAppender" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<charset>UTF-8</charset>
<pattern>%d{dd MMM yyyy ;HH:mm:ss.SSS} %highlight(%level) [%thread] %property{HOSTNAME} ${springAppName:-} [%X{X-B3-TraceId}]
%logger{0}.%M\(%line\) - %msg%n
</pattern>
</encoder>
</appender>
<appender name="fileAppender"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${logPath}/${springAppName}/application.log</file>
<file>application.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>application_%d{yyyy-MM-dd}_%i.log</fileNamePattern>
<maxFileSize>10MB</maxFileSize>
<maxHistory>${maxLogHistoryInDays}</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d{dd MMM yyyy ;HH:mm:ss.SSS} %level [%thread] %property{HOSTNAME} ${springAppName:-} [%X{X-B3-TraceId}]
%logger{0}.%M\(%line\) - %msg%n</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="consoleAppender" />
<appender-ref ref="fileAppender" />
</root>
</configuration>
Here the logs are getting created at default location when two paths are given . And when only path is mentioned i.e., the first one it is working fine , logs are getting created at custom location.
Its not possible to provide multiple file paths in same appender block but You can do that by adding multiple appender blocks in your config file like -
<appender name="fileAppender" ............>
<appender name="fileAppender1" ............>
.
.
<root level="INFO">
<appender-ref ref="consoleAppender" />
<appender-ref ref="fileAppender" />
<appender-ref ref="fileAppender1" />
</root>
you can provide different file path in different appender blocks. While doing se make sure there is no collision in file. log file name and rolling file name must be different in both.
<appender name="fileAppender"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>./application.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>application_%d{yyyy-MM-dd}_%i.log</fileNamePattern>
<maxFileSize>10MB</maxFileSize>
<maxHistory>1</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d{dd MMM yyyy ;HH:mm:ss.SSS} %level [%thread] %property{HOSTNAME} ${springAppName:-} [%X{X-B3-TraceId}]
%logger{0}.%M\(%line\) - %msg%n</pattern>
</encoder>
</appender>
<appender name="fileAppender1"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>./application1.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>application1_%d{yyyy-MM-dd}_%i.log</fileNamePattern>
<maxFileSize>10MB</maxFileSize>
<maxHistory>1</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d{dd MMM yyyy ;HH:mm:ss.SSS} %level [%thread] %property{HOSTNAME} ${springAppName:-} [%X{X-B3-TraceId}]
%logger{0}.%M\(%line\) - %msg%n</pattern>
</encoder>
</appender>
I have my current logback file, which to my understanding is a classic logback implementation:
<configuration debug="true">
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>Hello %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<root level="debug">
<appender-ref ref="STDOUT" />
</root>
</configuration>
I have a specific log:
log.info(String.format("ProxyICA %s has an integrity violation. %s.",
processorId.getProxyIca(),
fkViolationMsg)
);
that I am trying to get in a text file. The only configuration I need in my logback is to put every instance of this log into a text file. Every other log can default log to the console (which it was doing without the logback.xml).
Thank you in advanced!
Here is an example of setting it up log to a specific file "Custom-Errors.txt", and to have the logs be deleted if they reach a certain size 20MB or 182 days elapse
<appender name="Custom_Logger
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>Custom-Errors.txt</file>
<rollingPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>Custom-Errors-%d{yyyy-MM-dd}.%i.txt</fileNamePattern>
<!-- each file should be at most 20MB, keep 182 days worth of history,but
at most 500MB -->
<maxFileSize>20MB</maxFileSize>
<maxHistory>182</maxHistory>
<totalSizeCap>500MB</totalSizeCap>
</rollingPolicy>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>INFO, DEBUG, TRACE</level>
</filter>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%date %level [%thread] [%file:%line] %msg%n%throwable
</Pattern>
</layout>
</appender>
<logger name="CUSTOM_LOGGER" additivity="false">
<appender-ref ref="Custom_Logger" />
</logger>
Then in your java class make a private variable to use the logger like this
private static final Logger CUSTOM_LOGGER =
LoggerFactory.getLogger("CUSTOM_LOGGER");
logging a dependency, or use to log anything you want based on package
here is an example of logging a library
<appender name="ConsoleOutForSpring" class="ch.qos.logback.core.ConsoleAppender">
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>INFO</level>
</filter>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
</Pattern>
</layout>
</appender>
<logger name="org.springframework" additivity="false">
<appender-ref ref="ConsoleOutForSpring" />
</logger>
I do admit there are a lot of tags and settings to this logger that are kind of complicated, but reading docs and looking at others examples has helped me.
Here were some docs I noted in my logback.xml
<!-- http://logback.qos.ch/manual/configuration.html this helped me with this weird looking stuff i.e. ===> %date %level [%thread] [%file:%line] %msg%n%throwable -->
<!-- http://logback.qos.ch/manual/appenders.html#SizeAndTimeBasedRollingPolicy
helped me set this up:
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>Errors-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<maxFileSize>20MB</maxFileSize>
<maxHistory>182</maxHistory>
<totalSizeCap>500MB</totalSizeCap>
</rollingPolicy>
I have some problem with logback.xml configuration. I want that console-appender write into console only info events and file-appender write into file with debug level.My current config looks like this :
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="LOG_PATH" value="applogs"/>
<appender name="FILE_DAILY" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- daily rollover -->
<fileNamePattern>${LOG_PATH}/News_App_MRM.%d{yyyy-MM-dd}.log</fileNamePattern>
<!-- keep 30 days' worth of history capped at 3GB total size -->
<maxHistory>30</maxHistory>
<totalSizeCap>3GB</totalSizeCap>
</rollingPolicy>
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- encoders are assigned the type
ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<root level="info">
<appender-ref ref="STDOUT"/>
<appender-ref ref="FILE_DAILY"/>
</root>
</configuration>
You have to define a logger like this
<logger name="org.hibernate" level="INFO" additivity="false">
<appender-ref ref="STDOUT"/>
</logger>
With this, all logs coming from org.hibernate will be logged on a INFO level.
You can then specify an appender for each logger.
I have a spring boot app(spring-boot-starter-parent --> 2.3.0.RELEASE) that I am implementing log.
Basically what I am trying to achieve is that I have 2 log files one bridgeError.log which contains only error messages and bridge.log which will contain all log level except Error level since it is being logged in brideError.log file.
I am able to create 2 logs file brideError.log which contains only error messages but the issue is that
bridge.log also contains error messages.
Please find my logback-spring.xml configuration below:
<configuration>
<property name="HOME_LOG" value="logs/bridge.log"/>
<property name="HOME_LOG_ERROR" value="logs/bridgeError.log"/>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- encoders are assigned the type
ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<appender name="FILE-ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${HOME_LOG}</file>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>DEBUG</level>
</filter>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>logs/archived/bridge.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
<!-- each archived file, size max 10MB -->
<maxFileSize>10MB</maxFileSize>
<!-- total size of all archive files, if total size > 20GB, it will delete old archived file -->
<totalSizeCap>20GB</totalSizeCap>
<!-- 60 days to keep -->
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d %p %c{1.} [%t] %m%n</pattern>
</encoder>
</appender>
<appender name="FILE-ROLLING-ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${HOME_LOG_ERROR}</file>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>ERROR</level>
</filter>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>logs/archived/bridgeError.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
<!-- each archived file, size max 10MB -->
<maxFileSize>10MB</maxFileSize>
<!-- total size of all archive files, if total size > 20GB, it will delete old archived file -->
<totalSizeCap>20GB</totalSizeCap>
<!-- 60 days to keep -->
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d %p %c{1.} [%t] %m%n</pattern>
</encoder>
</appender>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n
</Pattern>
</layout>
</appender>
<logger name="com.dummy.package" level="debug" additivity="false">
<!-- <appender-ref ref="FILE-ROLLING"/>-->
<appender-ref ref="CONSOLE"/>
</logger>
<!-- <root level="error">
<appender-ref ref="FILE-ROLLING"/>
<!– <appender-ref ref="CONSOLE"/>–>
</root>-->
<logger name="com.dummy.package" level="DEBUG">
<appender-ref ref="FILE-ROLLING"/>
<appender-ref ref="FILE-ROLLING-ERROR"/>
</logger>
</configuration>
Is it possible to exclude error messages in bridge.log file?
Thanks in advance
You can use a level filter for that purpose
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>DENY</onMatch>
<onMismatch>ACCEPT</onMismatch>
</filter>
Docs: http://logback.qos.ch/manual/filters.html
I have this logback.xml in my app (Java 6 / Tomcat 7.0.27 / JSF: Mojarra 2.1.13) file:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="LB_STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{dd/MM/yyyy HH:mm:ss.SSS} %-5level {%thread} [%logger{40}] : %msg%n</pattern>
<charset>UTF-8</charset>
</encoder>
</appender>
<appender name="LB_AOUB_FILE" class="ch.qos.logback.core.FileAppender">
<file>${catalina.base}/logs/lb_aoub.log</file>
<append>true</append>
<encoder>
<charset>UTF-8</charset>
<pattern>%d{dd/MM/yyyy HH:mm:ss.SSS} %-5level {%thread} [%logger] : %msg%n</pattern>
</encoder>
<rollingPolicy class="org.apache.juli.logging.ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${catalina.base}/logs/lb_aoub-%d{yyyyMMdd}-%i.log.zip</fileNamePattern>
<maxHistory>60<!-- days -->
</maxHistory>
<timeBasedFileNamingAndTriggeringPolicy class="org.apache.juli.logging.ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>2MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<logger name="br.com.aoub" level="DEBUG">
<appender-ref ref="LB_STDOUT" />
<appender-ref ref="LB_AOUB_FILE" />
</logger>
</configuration>
The errors, warns and infos are working. But the debug level logs in the application have not been written in the console neither been saved in the file.
If I add this:
<root level="debug">
<appender-ref ref="LB_STDOUT" />
</root>
The debug messages are written is the console, but I want to set only the br.com.aoub logger to debug, not the entire application.
Am I missing something?