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Posted to log4j-dev@logging.apache.org by "Remko Popma (JIRA)" <ji...@apache.org> on 2016/12/21 10:22:58 UTC

[jira] [Comment Edited] (LOG4J2-1628) Scrambled log messages

    [ https://issues.apache.org/jira/browse/LOG4J2-1628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15537285#comment-15537285 ] 

Remko Popma edited comment on LOG4J2-1628 at 12/21/16 10:22 AM:
----------------------------------------------------------------

{code}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="pubsub" packages="org.lcogt.commons.log" verbose="true">
 
    <Appenders>
        <File name="LogStash" fileName="logstash.log" locking="true" bufferSize="0">
            <LCOGTLayout/>
        </File>
    </Appenders>

    <Loggers>
        <asyncLogger name="org.lcogt" level="info" additivity="false">
            <AppenderRef ref="LogStash"/>
        </asyncLogger>
    </Loggers>
</Configuration>
{code}


was (Author: markbowman):
{quote}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="pubsub" packages="org.lcogt.commons.log" verbose="true">
 
    <Appenders>
        <File name="LogStash" fileName="logstash.log" locking="true" bufferSize="0">
            <LCOGTLayout/>
        </File>
    </Appenders>

    <Loggers>
        <asyncLogger name="org.lcogt" level="info" additivity="false">
            <AppenderRef ref="LogStash"/>
        </asyncLogger>
    </Loggers>
</Configuration>
{quote}

> Scrambled log messages
> ----------------------
>
>                 Key: LOG4J2-1628
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1628
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Appenders
>    Affects Versions: 2.6.2
>         Environment: centos
>            Reporter: Mark Bowman
>
> We have several threads writing to an async file with locking set to true. Under log4j 2.5 the message from each thread are interleaved correctly. Using log4j 2.6.2 some messages are scrambled as if multiple threads are writing to the file simultaneously. Reverting to 2.5 fixes the problem.
> Configuration to follow.



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