Peter Lauko created LOG4J2-1968:
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Summary: GelfLayout/SocketAppender does not append frame delimiter
null byte when using TCP
Key: LOG4J2-1968
URL: https://issues.apache.org/jira/browse/LOG4J2-1968
Project: Log4j 2
Issue Type: Bug
Components: Appenders, Layouts
Affects Versions: 2.8
Reporter: Peter Lauko
Hi,
According to GELF specification, when using TCP protocol a '\0' null byte must
be appended at the end of message as frame delimiter.
http://docs.graylog.org/en/latest/pages/gelf.html#gelf
Using below config messages do not appear in Graylog.
Everything is fine when using UDP, or when using GELF appender
(https://github.com/graylog-labs/log4j2-gelf), so logging config itself is ok.
I can see the packets in Wireshark, only Graylog ignores them.
{code:xml}
<Socket name="SocketTcp" protocol="TCP" host="dit17mpc029.dorsum.intra"
port="12201" ignoreExceptions="false">
<GelfLayout host="jenkins-sock-tcp" compressionType="OFF"/>
</Socket>
{code}
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