Andrew Rose created LOG4J2-649:
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Summary: Close a dynamically created appender
Key: LOG4J2-649
URL: https://issues.apache.org/jira/browse/LOG4J2-649
Project: Log4j 2
Issue Type: Improvement
Components: API, Appenders
Affects Versions: 2.0-rc1
Environment: Windows 7 (64-bit)
Reporter: Andrew Rose
I'm using the Routing functionality in Log4j 2 to dynamically create appenders
at runtime. When I know that those appenders are finished with, I'd like to
tell Log4j so that it can tidy up the related resources (flush & close files,
free its internal objects related to those appenders, etc.). Without doing
this, Log4j still has open file handles and I'm unable to manipulate the files
that it has written (from an external process which post-processes and archives
the logs).
Remko Popma tells me (via the stackoverflow answer at
http://stackoverflow.com/a/23827382/799399) that there is no way of doing this
at the moment. I'd like to request that you consider enhancing Log4j 2 in this
way.
I enclose my configuration below, in case it's relevant (but I think all the
details you need are included in the above description).
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} %level{ERROR=!, WARN=?, INFO=-,
DEBUG=., TRACE=.} %msg%n"/>
</Console>
<Routing name="MatchLogs">
<Routes pattern="$${ctx:matchID}">
<Route>
<RandomAccessFile name="MatchLog-${ctx:matchID}"
fileName="logs/${ctx:matchID}.log">
<PatternLayout pattern="%d{ISO8601} %-5level %-30.30logger{1}
%msg%n"/>
</RandomAccessFile>
</Route>
</Routes>
</Routing>
<Async name="AsyncWrapper">
<AppenderRef ref="MatchLogs" level="debug"/>
<AppenderRef ref="Console" level = "info"/>
</Async>
<Routing name="MatchStatsLogs">
<Routes pattern="$${ctx:matchID}">
<Route>
<RandomAccessFile name="MatchStatsLog-${ctx:matchID}"
fileName="logs/${ctx:matchID}_stats.log">
<PatternLayout pattern="%msg"/>
</RandomAccessFile>
</Route>
</Routes>
</Routing>
<Async name="AsyncStatsWrapper">
<AppenderRef ref="MatchStatsLogs" level="debug"/>
</Async>
</Appenders>
<Loggers>
<Logger name="stats" level="trace" additivity="false">
<AppenderRef ref="AsyncStatsWrapper"/>
</Logger>
<Root level="debug">
<AppenderRef ref="AsyncWrapper"/>
</Root>
</Loggers>
</Configuration>
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