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Create 2 log file in Springboot

I creating multiple log file in Springboot , log-back.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="HOME" value="./logs" />
<appender name="SYSLOG" class="ch.qos.logback.classic.net.SyslogAppender">-->
<syslogHost>10.0.3.20</syslogHost>
<facility>SYSLOG</facility>
<suffixPattern>abc [%thread] %logger %msg</suffixPattern>
</appender>
<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="FILE-AUDIT" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${HOME}/abc.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- daily rollover -->
<fileNamePattern>${HOME}/abc.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
‌
// another log file
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${HOME}mon.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- daily rollover -->
<fileNamePattern>${HOME}/mon.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<logger name="com.rh.project" level="debug">
<appender-ref ref="STDOUT" />
<appender-ref ref="SYSLOG" />
<appender-ref ref="FILE-AUDIT" />
</logger>
<logger name="mail-log" level="debug">
<appender-ref ref="STDOUT" />
<appender-ref ref="SYSLOG" />
<appender-ref ref="FILE" />
</logger>
</configuration>
When I check inside log directory, I only saw abc.log , but no mon.log

Did you notice the slash missing inside in second logger??
<file>${HOME}/mon.log</file>
I believe that's the problem. However, nothing to do with spring boot :)

Logback rolling logging not working

I am trying to create logger policy in a spring based project.
The issue I am facing is related to rolling policy. the logfile.log is created and is working fine but the rolling file rollingfile.log.%d{yyyy-MM-dd}.log is not created.
Given below is my logback.xml.
<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true" scan="true" scanPeriod="30 seconds">
<property name="LOG_PATH" value="D:/coinLogs" />
<property name="LOG_ARCHIVE" value="${LOG_PATH}/archive" />
<appender name="Console-Appender" class="ch.qos.logback.core.ConsoleAppender">
<layout>
<pattern>[%d{yyyy-MM-dd HH:mm:ss}] - [%X{requestId}] - %p %c -- %m%n</pattern>
</layout>
</appender>
<appender name="File-Appender" class="ch.qos.logback.core.FileAppender">
<file>${LOG_PATH}/logfile.log</file>
<encoder>
<pattern>[%d{yyyy-MM-dd HH:mm:ss}] - [%X{requestId}] - %p %c -- %m%n
</pattern>
<outputPatternAsHeader>true</outputPatternAsHeader>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily -->
<fileNamePattern>${LOG_ARCHIVE}/rollingfile.log.%d{yyyy-MM-dd}.log
</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<logger name="coinPay.logbackxml" level="info" additivity="false">
<appender-ref ref="Console-Appender" />
<appender-ref ref="File-Appender" />
</logger>
<!-- To remove extra hibernate logs -->
<logger name="org.hibernate">
<level value="info" />
</logger>
<root>
<appender-ref ref="Console-Appender" />
<appender-ref ref="File-Appender" />
</root>
</configuration>
any help will be appreciated. Thank you in advance :D

You need to specify ch.qos.logback.core.rolling.RollingFileAppender as class for your appender. A FileAppender can not roll.

I believe you're missing the %i parameter, which should be replaced by the rolling file index (i.e. 'mylog.2017-03-13.0.txt', 'mylog.2017-03-13.1.txt', etc.)
In addition, like Uwe Allner, I'm using RollingFileAppender instead of FileAppender.
(I also suggest adding a totalSizeCap to the configuration, in order to control to total size)
Here's my entire appender configuration:
<appender name="SQL_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOG_HOME}/mylog.txt</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>
%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level- %msg%n
</Pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<maxHistory>3</maxHistory>
<totalSizeCap>5GB</totalSizeCap>
<fileNamePattern>${LOG_HOME}/archived/mylog.%d{yyyy-MM-dd}.%i.txt.zip</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>20MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>

How to keep rolling log file as per file size?

I am working on a project in which I am logging bunch of stuff in a file and I want to make sure my log file is getting rolled as soon as a fixed limit for file is reached. I have a below logback.xml file but it looks like file size is not working. I see my file size as 793M but limit I have is 100M
<configuration>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>process.log</file>
<triggeringPolicy
class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>100MB</maxFileSize>
</triggeringPolicy>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>process%i.log</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>9</maxIndex>
</rollingPolicy>
<encoder>
<pattern>%date %level [%thread] %msg%n</pattern>
<!-- this improves logging throughput -->
<immediateFlush>true</immediateFlush>
</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="FILE" />
<appender-ref ref="STDOUT" />
</root>
</configuration>
What wrong I am doing here? And also what is the best policy we should follow in production in terms of logging? We are logging bunch of stuff in a file and we don't want to fill up the disk with this log file.

Instead of FileAppender, you should be using a RollingFileAppender.
See: http://logback.qos.ch/manual/appenders.html
You are specifying settings/properties that are intended to be used by the RollingFileAppender and are ignored by FileAppender.
For a good example usage and configuration, refer to this link:
http://examples.javacodegeeks.com/enterprise-java/logback/logback-rollingfileappender-example/
Sample logback.xml using a RollingFileAppender and ConsoleAppender. The RollingFileAppender is both size and time based:
<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true">
<appender name="consoleAppender" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<charset>UTF-8</charset>
<Pattern>%d %-4relative [%thread] %-5level %logger{35} - %msg%n</Pattern>
</encoder>
</appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>/srv/logs/application.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>logFile.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>30</maxHistory>
</rollingPolicy>
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>5MB</maxFileSize>
</triggeringPolicy>
<encoder>
<charset>UTF-8</charset>
<pattern>%d %-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<root level="DEBUG">
<appender-ref ref="consoleAppender" />
<appender-ref ref="FILE"/>
</root>
</configuration>

Logback : different different files for different log levels

I know that this type of question have been answered, but in my case i have tried every config and still doesn't work. I need a fresh view to my config (I am sure i'm missing something). both of the appenders log all levels
I want to log info >= for all packages to the console, and the errors only the erros to log file. In my case, both of them log info
Here is config.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!-- CONSOLE -->
<property name="LOG_PATTERN" value="%d [%thread] %-5level %logger{36} - %msg%n" />
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<charset>UTF-8</charset>
<pattern>${LOG_PATTERN}</pattern>
</encoder>
</appender>
<!-- FILE FOR ERROR ONLY -->
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>/Users/dev/Desktop/JAC/logs/frontend/errors.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>/Users/dev/Desktop/JAC/logs/frontend/errors_%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>5MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<charset>UTF-8</charset>
<pattern>${LOG_PATTERN}</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="CONSOLE" />
</root>
<root level="INFO">
<appender-ref ref="FILE" />
</root>
</configuration>
Thanks in advance

May be, it's not the more beautiful solution. But, in this case, log level INFO is logged in the console, and error is logged in a file. The debug level will be not printed. And INFO and ERROR are in only one exit.
And my application package is fr.myuser.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="DEV_HOME" value="/home/myUser" />
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>INFO</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<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="FILE-ERROR"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<file>${DEV_HOME}/error.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>
%d{yyyy-MM-dd HH:mm:ss} - %msg%n
</Pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily -->
<fileNamePattern>${DEV_HOME}/error.%d{yyyy-MM-dd}.%i.log
</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<!-- Send logs to console -->
<logger name="fr.myuser" level="INFO">
<appender-ref ref="STDOUT" />
</logger>
<root level="ERROR">
<appender-ref ref="FILE-ERROR" />
</root>
</configuration>

Rolling logback logs on filesize and time

I've been trying to set up a simple logback project to roll my log files by date and by filesize, and so far I have been unable to get my appender to roll over to another file. Instead, it writes to the log specified by the <file/> tag.
Here is my logback.xml configuration file:
<?xml version="1.0"?>
<configuration scan="true" scanPeriod="10 seconds">
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</layout>
</appender>
<appender name="milliroller" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>log/output.log</file>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</layout>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>log/mylog-%d{yyyy-MM-dd}.%i.txt</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>1KB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<root level="DEBUG">
<appender-ref ref="stdout"/>
<appender-ref ref="milliroller"/>
</root>
<logger name="com.tkassembled.logback" level="DEBUG"/>
</configuration>
At first glance, it looks like it should work, right? Is there something I'm doing wrong? My entire, buildable project is available in a zip here: http://www.mediafire.com/file/2bxokkdyz2i/logback.zip

Although this is an old question, I felt that a working answer is appropriate to help anyone who requires this kind of implementation.
I use the following logback configuration to provide an HTML log, rolled over by date and filesize, as well as logging to console for debugging output.
Logfiles are stored in a logs directory with a name of logFile.html while its active, and logFile.2013-mm-dd.i.html when it rolls over, where i is the number of 50MB log files. For instance logFile.2013-01-07.0.html.
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- encoders are assigned the type
ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
<encoder>
<charset>UTF-8</charset>
<pattern>%d{HH:mm:ss.SSS} [%thread] %highlight(%-5level) %cyan(%logger{35}) - %msg %n</pattern>
</encoder>
</appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>logs\logFile.html</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- daily rollover -->
<fileNamePattern>logs\logFile.%d{yyyy-MM-dd}.%i.html</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<!-- or whenever the file size reaches 50MB -->
<maxFileSize>50MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<!-- keep 30 days' worth of history -->
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<charset>UTF-8</charset>
<layout class="ch.qos.logback.classic.html.HTMLLayout">
<pattern>%d{HH:mm:ss.SSS}%thread%level%logger%line%msg</pattern>
</layout>
</encoder>
</appender>
<root level="DEBUG">
<appender-ref ref="STDOUT" />
<appender-ref ref="FILE" />
</root>
</configuration>

Since logback 1.1.7 (released March 2016) a new policy called SizeAndTimeBasedRollingPolicy is available that dramatically simplifies what you need to do:
<appender name="ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>app.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>app-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<maxFileSize>10MB</maxFileSize>
<maxHistory>30</maxHistory>
<totalSizeCap>1GB</totalSizeCap>
</rollingPolicy>
<encoder>
<pattern>%msg%n</pattern>
</encoder>
</appender>
See here for further info.