DO NOT REPLY [Bug 50085] New: SyslogAppender does not split stack traces correctly

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=50085

           Summary: SyslogAppender does not split stack traces correctly
           Product: Log4j
           Version: 1.2
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Appender
        AssignedTo: log4j-dev@logging.apache.org
        ReportedBy: dimo.velev@gmail.com


The SyslogAppender does not seem to handle the stack traces correctly. The
symptoms are strange looking log files created by syslog. An example:
--cut--
2010-10-13T13:42:14+02:00 the.correct.hostname.com stdout WARN  [http-8080-1]
a.b.c.d:
2010-10-13T13:42:14+02:00 the.correct.hostname.com
java.lang.NullPointerException
2010-10-13T13:42:14+02:00 localhost.localdomain the.correct.hostname.com    at
a.b.c.d.e.f.G.h(G.java:672)
2010-10-13T13:42:14+02:00 localhost.localdomain the.correct.hostname.com    at
a.b.c.d.e.f.G.h(G.java:852)
--cut--
The hostname of the first two log entries seems okay but the next ones (the
stacktrace) use localhost.localdomain which is wrong.

I guess the problem is in SyslogAppender.append which seems to handle the
layout message and the stack trace differently (the former going through
splitPacket, the latter going directly to sqw). I am not sure but it seems to
me that we need to first create the whole payload (including the stacktrace)
and then send it using splitPacket.

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