CODEWITHSUNDEEP
javalogginglog4j2
Georgi Georgiev
Georgi Georgiev

Reputation: 3954

Log4j2 rolling file overwrites existing log

I have the following configuration file for Log4j2:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="error" name="D3Hooks" packages="">
    <Appenders>
        <RollingFile append="true" name="RollingFile" fileName="D:\temp\logs\hooks.log" filePattern="hooks.log.%d{dd-MM-yyyy}.log">
            <Policies>
                <TimeBasedTriggeringPolicy />
            </Policies>
            <DefaultRolloverStrategy max="30"/>
            <PatternLayout pattern="%d{dd-MM-yyyy HH:mm:ss} %level %c.%m %ex{full} %n"/>
        </RollingFile>
    </Appenders>
    <Loggers>
        <Root level="trace">
            <AppenderRef ref="RollingFile"/>
        </Root>
    </Loggers>
</Configuration>

What I expect from this configuration is that a new log file is created daily and 30 log files are kept. What happens instead is that there is only one log file which is overwritten daily. What am I doing wrong?

Upvotes: 2

Views: 4040

Answers (2)

K.tin
K.tin

Reputation: 475

<PatternLayout pattern="%d{dd-MM-yyyy HH:mm:ss} %level %c.%m %ex{full} %n"/>
        </RollingFile>

The log file will create 1 file per day which the interval setting equal to 1 when the pattern layout with pattern="%d{yyyy-MM-dd}. Because the interval is dependent to the log file name format. If the file name have something like HH:mm:ss it will create a file per second.

Upvotes: 0

PowerStat
PowerStat

Reputation: 3821

For the TimeBasedTriggeringPolicy you should set interval="1" and modulate="true".

See also Time based triggering policy in log4j2

Upvotes: 1

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