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https://issues.apache.org/jira/browse/LOG4J2-820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14133102#comment-14133102
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Hassan Kalaldeh commented on LOG4J2-820:
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I understand your point for the filePattern, but actually I am talking about
this part:
{code}<TimeBasedTriggeringPolicy interval="24" modulate="true" />{code}
when I run my application, it gives strange rolling behavior where it give
invalid rolled log file name, when I traced the code I found it deals with
interval "24" as 24 days which will be used to get rolled file name, BUT in the
example from the link I put in task description the example assumes "6" is 6
hours.
referring to the example:
Below is a sample configuration that uses a RollingFileAppender with both the
time and size based triggering policies, will create up to 7 archives on the
same day (1-7) that are stored in a directory based on the current year and
month, and will compress each archive using gzip and will roll every 6 hours
when the hour is divisible by 6:
{code}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
<Appenders>
<RollingFile name="RollingFile" fileName="logs/app.log"
filePattern="logs/$${date:yyyy-MM}/app-%d{yyyy-MM-dd-HH}-%i.log.gz">
<PatternLayout>
<Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="6" modulate="true"/>
<SizeBasedTriggeringPolicy size="250 MB"/>
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Root level="error">
<AppenderRef ref="RollingFile"/>
</Root>
</Loggers>
</Configuration>
{code}
> Default interval unit in TimeBasedTriggeringPolicy
> --------------------------------------------------
>
> Key: LOG4J2-820
> URL: https://issues.apache.org/jira/browse/LOG4J2-820
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.0.2
> Reporter: Hassan Kalaldeh
>
> I just found that default interval type if not given in
> TimeBasedTriggeringPolicy is day not hour while using RollingFileAppender.
> here is appender I use:
> {code}
> <RollingFile name="DailyRollDfm" fileName="/logs/itms2/dfm.log"
> filePattern="/backup/%d{yyyy}/%d{MM}/%d{dd}/module-%d{yyyy-MM-dd}-%i.log.gz"
> append="true" immediateFlush="false">
> <PatternLayout>
> <Pattern>%d{ISO8601}: %-5p [%-8t] [%C{1}.%M():%L] - %m%n</Pattern>
> </PatternLayout>
> <Policies>
> <SizeBasedTriggeringPolicy size="2 GB" />
> <TimeBasedTriggeringPolicy interval="24" modulate="true" />
> <OnStartupTriggeringPolicy />
> </Policies>
> <DefaultRolloverStrategy max="100"/>
> </RollingFile>
> {code}
> but the example in
> http://logging.apache.org/log4j/2.x/manual/appenders.html#RollingFileAppender
> assumes default is in hours not in days.
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