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https://issues.apache.org/jira/browse/LOG4J2-1209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15033861#comment-15033861
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Mikael Ståldal edited comment on LOG4J2-1209 at 12/1/15 3:27 PM:
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Or else we need to review all appenders in {{log4j-core}} and make sure that 
none of them can hang indefinitely on {{stop()}}, perhaps adding 
{{shutdownTimeout}} parameter to some of them (like {{AsyncAppender}} already 
have).

And update documentation to alert 3rd party appender developers to do the same.


was (Author: mikaelstaldal):
Or else we need to review all appenders in {{log4j-core}} and make sure that 
none of them can hang indefinitely on {{stop()}}, perhaps adding 
{{shutdownTimeout}} parameter to some of them (like {{AsyncAppender}} already 
have).

> LoggerContext.stop() hangs indefinitely if any Appender's stop() method hangs
> -----------------------------------------------------------------------------
>
>                 Key: LOG4J2-1209
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1209
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.4.1
>            Reporter: Mikael Ståldal
>
> {{LoggerContext.stop()}} hangs indefinitely if any Appender's {{stop()}} 
> method hangs.
> It is not possible to protect from this by wrapping a problematic Appender in 
> AsyncAppender since {{LoggerContext.stop()}} will stop all appenders no 
> matter how they are used.
> We have some Appenders which can hang indefinitely, see 
> [https://issues.apache.org/jira/browse/LOG4J2-1191].



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