Sergey Alaev created LOG4J2-425:
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Summary: Permgen leak in AsyncLoggerConfigHelper
Key: LOG4J2-425
URL: https://issues.apache.org/jira/browse/LOG4J2-425
Project: Log4j 2
Issue Type: Bug
Components: Appenders
Affects Versions: 2.0-beta9
Environment: JDK7, Win8 64bit
Reporter: Sergey Alaev
Thread local 'currentLogEvent' is not cleaned on shutdown which prevent web
applications clean undeploying.
Tomcat prints following:
SEVERE: The web application [/web] created a ThreadLocal with key of type
[java.lang.ThreadLocal] (value [java.lang.ThreadLocal@22410487]) and a value of
type [org.apache.logging.log4j.core.impl.Log4jLogEvent] (value
[Logger=********* Level=INFO Message=************]) but failed to remove it
when the web application was stopped. Threads are going to be renewed over time
to try and avoid a probable memory leak.
We use async loggers declared explicitly in log4j2.xml:
<AsyncLogger name="logger" additivity="false" level="trace"> ......
We use RollingRandomAccessFile as appender.
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