DailyRollingFileAppender not creating daily log file

Question

DailyRollingFileAppender is not creating daily backup log file.

I am using the below config, which works on my local machine but it not working on the machine where my project has been deployed.

log4j.rootLogger=DEBUG, Appender2

log4j.appender.Appender2=org.apache.log4j.DailyRollingFileAppender
log4j.appender.Appender2.File=C:/Logs/AppLog.log
log4j.appender.Appender2.DatePattern='.'dd-MM-yyyy
log4j.appender.Appender2.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender2.layout.ConversionPattern=%-7p %d [%t] %c %x - %m%n
log4j.appender.Appender2.rootLogger = DEBUG

Framework - Spring MVC

I am not able to understand which part of the config is bloking DailyRollingFileAppender to create date wise log on my server machine.

Edit-

I updated my file as per the suggestion and it is not creating a new backup file at 12 am next day. means it updated AppLog.l‌​og till 12 then there was no backup file and all the previous day logs are gone and it starts writing from the beginning.

This is log4j properties now-

log4j.rootLogger=DEBUG, Appender2
log4j.appender.Appender2=org.apache.log4j.DailyRollingFileAppender
log4j.appender.Appender2.File=${catalina.home}/Logs/AppLog.log
log4j.appender.Appender2.DatePattern='.'yyyy-MM-dd
log4j.appender.Appender2.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender2.Append=false
log4j.appender.Appender2.layout.ConversionPattern=%-7p %d [%t] %c %x - %m%n

Answer 1

your DatePattern should be '.'yyyy-MM-dd

refer to https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/DailyRollingFileAppender.html

Answer 2

I faced with this problem before, the cause turned to be I used wrong log4j dependency in pom.xml. The previous dependency is:

<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>

I use spring boot in my project, so I changed it to the following, it worked.

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-log4j</artifactId>
    <version>1.3.8.RELEASE</version>
</dependency>

Answer 3

u can use this for get the daily rolling log file,

########## Appender Daily Rolling
log4j.logger.appender=Daily
log4j.appender.Daily=org.apache.log4j.DailyRollingFileAppender
log4j.appender.Daily.Threshold=INFO
log4j.appender.Daily.File=D:/backup/RFLI1010.log
log4j.appender.Daily.DatePattern='.'yyyy-MM-dd
# Append to the end of the file or overwrites the file at start.
log4j.appender.Daily.Append=true
log4j.appender.Daily.MaxBackupIndex=20
log4j.appender.Daily.layout=org.apache.log4j.PatternLayout
log4j.appender.Daily.layout.ConversionPattern=  [%5p] %d %r %t (%F:%M:%L)%m%n%n

Answer 4

The issue is with the file path here:

log4j.appender.Appender2.File=C:/Logs/AppLog.log

Please make sure that this path exists on the server where you have deployed your project.