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https://issues.apache.org/jira/browse/LOG4J2-385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13887434#comment-13887434
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Remko Popma edited comment on LOG4J2-385 at 1/31/14 4:21 AM:
-------------------------------------------------------------

What do Log4j-1.2 and Logback do in the above scenarios? Considering easy 
migration, we probably want to follow them (unless they do something very 
strange...)

Edit:
To answer my own question: 
* Monthly rollover occurs at the beginning of each month.
* Weekly rollover occurs at the first day of each week. The first day of the 
week depends on the locale.
* Daily rollover occurs at midnight each day.
* Log4J-1.2 also has an option to rollover both at midnight and at noon during 
the day, so twice each day.
* Hourly rollover occurs at the beginning of each hour.
* Minutely(?) rollover occurs at the beginning of each minute.

http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/DailyRollingFileAppender.html
http://logback.qos.ch/manual/appenders.html#TimeBasedRollingPolicy


was (Author: [email protected]):
What do Log4j-1.2 and Logback do in the above scenarios? Considering easy 
migration, we probably want to follow them (unless they do something very 
strange...)

> Unable to roll log files monthly
> --------------------------------
>
>                 Key: LOG4J2-385
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-385
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Appenders
>    Affects Versions: 2.0-beta8
>         Environment: Java 1.7.0_25, Windows 7 64bit, IntelliJ IDEA 12 Ultimate
>            Reporter: Ace Funk
>            Assignee: Remko Popma
>         Attachments: LOG4J2-385.patch
>
>
> Attempting to use FastRollingFile appender and configure log file rollover to 
> occur monthly.  When {{filePattern="logs/app-%d\{yyyy-MM}.log.gz"}} is used, 
> at application startup an archive file is created immediately 
> (app-2013-01.log.gz) even if no log previously existed.  A log file is 
> created, but only a single entry is made into the log.



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