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From "Remko Popma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LOG4J2-904) RollingFile appender doesn't zip and create new files
Date Tue, 05 Jul 2016 02:04:11 GMT

    [ https://issues.apache.org/jira/browse/LOG4J2-904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15361897#comment-15361897
] 

Remko Popma commented on LOG4J2-904:
------------------------------------

What about race conditions where process A is still writing to the file when process B decides
to roll it.
Previously, B could copy the file and zip the copy but would not be able to delete the original
file. Then, when process A rolls over, the same thing happens. 
Drawback: original file keeps growing. Benefit: events are never dropped.

With the new code, the drawback of the growing file is gone, but could process B not truncate
an event that was just added by A?

> RollingFile appender doesn't zip and create new files
> -----------------------------------------------------
>
>                 Key: LOG4J2-904
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-904
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Appenders
>    Affects Versions: 2.1
>         Environment: Windows 7
>            Reporter: Stephen A. Weinfield
>             Fix For: 2.6.2
>
>
> Using TimeBasedTriggeringPolicy, with a filePattern of {{f:/Log4J/$$\{date:yyyy-MM}/IIB-%d\{MM-dd-yyyy}-%i.log.zip}}
and a fileName of f:/Log4J/IIB.log:
> on date change, directory is created but filename is not zipped. Also old file is not
cleared out, but just appended to.
> Log4j2.xml:
> {code}
> <Configuration status = "warn" name = "Log4j2_Configuration" monitorInterval = "60"
packages = "">
>     <Appenders>
>         <RollingFile name = "RollingFile" fileName = "f:/Log4J/IIB.log" filePattern
= "f:/Log4J/$${date:yyyy-MM}/IIB-%d{MM-dd-yyyy}-%i.log.zip" >
>             <PatternLayout>
>                 <Pattern>%d %p %c{1} %m%n%n</Pattern>
>             </PatternLayout>
>             <Policies>
>                 <TimeBasedTriggeringPolicy interval = "1" modulate = "true"/>
>             </Policies>
>             <DefaultRolloverStrategy fileIndex = "min" max = "7" compressionLevel
= "5"/>
>         </RollingFile>
>     </Appenders>
>     <Loggers>
>         <Root level = "trace">
>             <AppenderRef ref = "RollingFile" level = "warn"/>
>         </Root>
>     </Loggers>
> </Configuration>
> {code}



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