[jira] [Commented] (LOG4J2-1804) Rolling file %i based rolling broken in 2.8

["Pierrick HYMBERT (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LOG4J2-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15868278#comment-15868278 ] 

Pierrick HYMBERT commented on LOG4J2-1804:
------------------------------------------

Temporary solution for 2.8 by configuration is to use such "-" as separator inside {{filePattern="__logs__/rolling.log-%i"}} instead of dot.

> Rolling file %i based rolling broken in 2.8
> -------------------------------------------
>
>                 Key: LOG4J2-1804
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1804
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Appenders
>    Affects Versions: 2.8
>            Reporter: Brendan Miller
>         Attachments: LOG4J2-1804.junit.patch
>
>
> Log files do not seem to be rolling up to the max number of files as specified in DefaultRolloverStrategy while utilizing a SizeBasedTriggeringPolicy. It is just rolling just to 1 file.
> Simple repro:
> log4j2.xml
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <Configuration status="INFO" name="MyApp">
>     <Appenders>
>         <RollingFile name="rolling"
>                      fileName="__logs__/rolling.log"
>                      filePattern="__logs__/rolling.log.%i"
>                      immediateFlush="true">
>             <PatternLayout pattern="%d %5p [%t] (%c) - %m%n"/>
>             <SizeBasedTriggeringPolicy size="1MB"/>
>             <DefaultRolloverStrategy max="10"/>
>         </RollingFile>
>     </Appenders>
>     <Loggers>
>         <Root level="INFO">
>             <AppenderRef ref="rolling"/>
>         </Root>
>     </Loggers>
> </Configuration>
> {code}
> MyApp.scala:
> {code}
> import scala.util.Random
> import org.apache.logging.log4j.LogManager
> object MyApp extends App {
>   val log = LogManager.getLogger(this.getClass)
>   var counter = 0L
>   var bytes = new Array[Byte](1000)
>   while (true) {
>     Random.nextBytes(bytes)
>     log.info(f"Log statement: $counter%08x ${bytes.mkString}")
>     counter += 1
>     Thread.sleep(5)
>   }
> }
> {code}
> If you run that against 2.7, things roll fine. If you run that against 2.8, you'll only see rolling.log & rolling.log.1 in the __logs__ folder.



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