Jim Tang created LOG4J2-265:
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Summary: FlumeAppender Stops App from Shutting Down when Newer
Version of Netty is Used
Key: LOG4J2-265
URL: https://issues.apache.org/jira/browse/LOG4J2-265
Project: Log4j 2
Issue Type: Bug
Components: Appenders
Affects Versions: 2.0-beta6
Reporter: Jim Tang
Attachments: zzzzzzzzzzzzzzzzzTest.7z
FlumeAppender(log4j-flume-ng) depends on flume-ng-sdk, which uses
netty-3.4.0.Final. When a higher version of netty is used instead, such as
3.5.8.Final or 3.6.5.Final, FlumeAppender will not shutdown properly.
To reproduce the problem (use attached Maven project):
1. Start your remote flume agent
2. Change the log4j2.xml to your agent host and port
3. press x and hit Enter
Notice how the application continues to run. Press x should break out of the
main loop and return from main(), indicating that the application should close.
The thread holding things up are
Hashed wheel timer #1
New I/O worker #1-8
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