[logs] ugliest application logs ever?

Jason Lewis jlewis at packetnexus.com
Thu Jan 24 11:52:48 PST 2008


I don't know about ugly, but logs that are difficult to parse suck.

Netscreen:
messages:Dec 17 09:35:27 10.14.93.7 ns5xp: NetScreen device_id=ns5xp  
system-notification-00257(traffic): start_time="2002-12-17 09:40:18" 
duration=4 policy_id=0 service=tcp/port:8000 proto
=6 src zone=Trust dst zone=Untrust action=Permit sent=715 rcvd=6561 
src=10.14.94.221 dst=10.14.90.217 src_port=1039 dst_port=8000 translated 
ip=10.14.93.7 port=1217
messages:Dec 17 09:35:27 10.14.93.7 ns5xp: NetScreen device_id=ns5xp  
system-notification-00257(traffic): start_time="2002-12-17 09:40:18" 
duration=4 policy_id=0 service=tcp/port:8000 proto
=6 src zone=Trust dst zone=Untrust action=Permit sent=651 rcvd=2782 
src=10.14.94.221 dst=10.14.90.217 src_port=1040 dst_port=8000 translated 
ip=10.14.93.7 port=1218

There isn't a good delimiter to break the log up, so it requires an 
custom regex.  Trying to use a space is a nightmare.  Give me something 
so I can quickly grab only what I need. I like pipe delimited.

jas


Anton Chuvakin wrote:
> All,
>
> Ah, long time - no post! :-)
>
> I wanted to turn this into a formal contest but figured I'd poll the
> list first: what are the ugliest, most useless application logs that
> you've seen? Logs that defy log analysis, that are full of numeric
> codes not explained anywhere? Logs that don't say what they mean (and
> vice versa)? Logs that omit the most critical piece of info?
>
> Here is my example:
>
> |22:22:32|BTC| 7|000|DDIC        |    |R49|Communication error, CPIC
> return code 020, <application> return code 456
>
> Why it sux: numeric codes (twice), ambiguous language, no sense of
> priority, etc.
>
> More?
>
> Best,
>   


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