SyslogAppender doesn't respect %nopex, outputs stack trace
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Key: LBCLASSIC-327
URL: http://jira.qos.ch/browse/LBCLASSIC-327
Project: logback-classic
Issue Type: Bug
Components: appender, layout
Affects Versions: 1.0.0
Environment: Ubuntu (11.10) & Red Hat (RHEL 5.8) Linux, Java 1.6,
Shibboleth Identity Provider 2.3.6
Reporter: Don Faulkner
Assignee: Logback dev list
(See http://mailman.qos.ch/pipermail/logback-user/2012-April/003096.html)
When using SyslogAppender, stack trace output appears in the output of the
Appender, contrary to the configured (or programmed) layout.
When my SyslogAppender is used, stack traces appear in my syslog output, even
though I don't want them. I've included a "%nopex" at the end of the
SuffixPattern value, but this has not stopped the stack traces from appearing.
I've tested a matching RollingFileAppender, where "%nopex" has the expected
behavior.
I'd expect that SyslogAppender would omit stack traces by default, or at least
give me a way to omit them.
I've looked at the source for SyslogAppender.java, and I see (about line 43)
that the prefixPattern already includes "%nopex" so I'm at a loss as to why I'm
seeing stack traces to begin with.
I've configured a SyslogAppender as follows.
The "%nopex" at the end doesn't matter. I can leave it out with identical
results.
The blank space at the beginning of SuffixPattern doesn't matter either. I can
leave it out with identical results.
<appender name="IDP_SYSLOG" class="ch.qos.logback.classic.net.SyslogAppender">
<SyslogHost>localhost</SyslogHost>
<Port>514</Port>
<Facility>AUTH</Facility>
<SuffixPattern> [%logger:%level] %msg %mdc{idpSessionId} from
%mdc{clientIP}%nopex</SuffixPattern>
</appender>
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