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 s开发者_如何学编程can="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.
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