DailyRollingFileAppender alternative in Log4j 2x

DailyRollingFileAppender was removed in Log4j 2x. What should be used instead?

Answer

Use a RollingFile ¹ with TimeBasedTriggeringPolicy ². e.g.:

<RollingFile name="RollingFile" 
             fileName="/tmp/app.log"
             filePattern="/tmp/app%d{yyyy-MM-dd}.log">
    <PatternLayout pattern="%d %p %c{1.} [%t] %m%n" />
    <TimeBasedTriggeringPolicy />
</RollingFile>

See more in Apache Log4j 2 User’s Guide [PDF].

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Notes

1. org.apache.logging.log4j.core.appender.RollingFileAppender
2. org.apache.logging.log4j.core.appender.rolling.TimeBasedTriggeringPolicy