CODEWITHSUNDEEP
javamaven-3log4j2
Alexei
Alexei

Reputation: 15726

RollingFile not create new log after midnight

java 1.8

maven 3.5

In pom.xml

<dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j-impl</artifactId>
        </dependency>

In my Maven java project I want to generate new log file every new day (midnight).

So I use RollingFile and cron 0 0 0 * * ?. Here my log4j2.xml

<Properties>
    <Property name="baseDir">logs</Property>
    <Property name="patterLayout">%d{[dd.MM.yyyy HH:mm:ss.SSS]} %l %p:%n %m%n</Property>
</Properties>

<Appenders>
    <Console name="Console" target="SYSTEM_OUT">
        <PatternLayout pattern="${patterLayout}"/>-
    </Console>

   
    <RollingFile name="RollingFile" fileName="${baseDir}/app.log"
                 filePattern="${baseDir}/$${date:yyyy-MM}/app-%d{yyyy-MM-dd}.log.gz">
        <PatternLayout pattern="${patterLayout}"/>-
        <CronTriggeringPolicy schedule="0 0 0 * * ?"/>
        <DefaultRolloverStrategy>
            <Delete basePath="${baseDir}" maxDepth="2">
                <IfFileName glob="*/app-*.log.gz"/>
                <IfLastModified age="60d"/>
            </Delete>
        </DefaultRolloverStrategy>
    </RollingFile>
</Appenders>

<Loggers>
    
    <Root level="trace">
        <AppenderRef ref="Console"/>
        <AppenderRef ref="RollingFile"/>
    </Root>
  </Loggers>

But all logs print in ONE file app.log.

Here result:

[27.11.2021 23:59:05.235] com.myproject.xls2metro2.App.main(App.java:18) TRACE:
 JDK: 1.8.0_202
[27.11.2021 23:59:05.238] com.myproject.xls2metro2.App.main(App.java:33) WARN:
 File path is mandatory

[28.11.2021 00:01:13.347] com.myproject.xls2metro2.App.main(App.java:18) TRACE:
 JDK: 1.8.0_202
[28.11.2021 00:01:13.351] com.myproject.xls2metro2.App.main(App.java:33) WARN:
 File path is mandatory

Upvotes: 1

Views: 822

Answers (1)

VadymVL
VadymVL

Reputation: 5566

At first, verify that your original configuration doesn't have this hyphen character (probably you have added it accidentally while writing a question)

<PatternLayout pattern="${patterLayout}"/>-

Also, make sure that your code is wrapped inside the Configuration tag (I assume that you have omitted it for the sake of brevity):

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
... your code here
</Configuration>

At second, your config looks exactly the same as in the official documentation examples, so it should be fine.

But in the documentation stated that:

The CronTriggeringPolicy triggers rollover based on a cron expression. This policy is controlled by a timer and is asynchronous to processing log events, so it is possible that log events from the previous or next time period may appear at the beginning or end of the log file. The filePattern attribute of the Appender should contain a timestamp otherwise the target file will be overwritten on each rollover.

So probably, this is your case. Just wait a little longer to verify, that the next logs will be written to a separate file.

Upvotes: 2

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