[logback-user] SyslogAppender behaving strangely

Robert Kuhar robertkuhar at gmail.com
Fri Jun 7 02:13:50 CEST 2013


I too am suspicious of the OS X syslogd, but I really don't know how to
trouble shoot it.  Maybe I sniff the wire to see what the UDP packets look
like?  That seems rather primitive.  I just wondered if anyone else has
ever seen this apparent message corruption when using a SyslogAppender.

THanks,
Bob


On Thu, Jun 6, 2013 at 4:03 PM, Chris Pratt <thechrispratt at gmail.com> wrote:

> It looks to me like the first timestamp and the bobk-mbp.local are being
> output by the SysLog daemon, but I have no idea what would be inserting the
> <Info> in the center of the timestamp from Logback.  Could your SysLog
> daemon be automatically inserting the log level at the first colon in the
> message?
>   (*Chris*)
>
>
> On Thu, Jun 6, 2013 at 3:24 PM, Robert Kuhar <robertkuhar at gmail.com>wrote:
>
>> My SyslogAppender succeeds in sending messages to the syslogd on my
>> MacBook, but the messages themselves are "corrupt" the syslogd logs them.
>>  For example, a RollingFileAppender
>>
>>   <appender name="DAILY_ROLLING"
>> class="ch.qos.logback.core.rolling.RollingFileAppender">
>>     <File>logs/dm.log</File>
>>     <rollingPolicy
>> class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
>>       <FileNamePattern>logs/dm.%d{yyyyMMdd}.log</FileNamePattern>
>>     </rollingPolicy>
>>     <encoder>
>>       <pattern>%d{yyyy-MM-dd'T'HH:mm:ss.SSS} [%p] %c{2}
>> DSN:%X{X-HTC-DEVICE-SN} APV:%X{X-HTC-APP-VERSION} RID:%X{X-HTC-REQUEST-ID}
>> - %m%n</pattern>
>>     </encoder>
>>   </appender>
>>
>> logs a message like...
>>
>> 2013-06-06T15:02:17.129 [INFO] Global$ DSN: APV: RID: - dm2-server
>> starting
>>
>> But the SysLog appender dorks the message corrupting the %d timestamp and
>> duplicating the level.  My SyslogAppender is configured like...
>>
>>   <appender name="SYSLOG"
>> class="ch.qos.logback.classic.net.SyslogAppender">
>>     <syslogHost>localhost</syslogHost>
>>     <facility>local4</facility>
>>     <suffixPattern>%d{yyyy-MM-dd'T'HH:mm:ss.SSS} %p %c{2}
>> DSN:%X{X-HTC-DEVICE-SN} APV:%X{X-HTC-APP-VERSION} RID:%X{X-HTC-REQUEST-ID}
>> - %m</suffixPattern>
>>   </appender>
>>
>> With the same log message appearing like...
>>
>> Jun  6 15:02:17 bobk-mbp.local 2013-06-06T15 <Info>: 02:17.129 INFO
>> Global$ DSN: APV: RID: - dm2-server starting
>>
>> Where did the <Info> come from and what is it doing in the middle of
>> logback's %d timestamp?  Is this logback messing up or syslogd?  Any
>> recommendations on how to troubleshoot this?
>>
>> Bob
>>
>>
>>
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>
>
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