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https://issues.apache.org/jira/browse/LOG4J2-1968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Gregory reopened LOG4J2-1968:
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> GelfLayout/SocketAppender does document "includeNullDelimiter" to append the
> 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, 2.8.2
> Reporter: Peter Lauko
> Fix For: 2.9
>
>
> 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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