[Xymon] Feature request for log test

David Baldwin david.baldwin at ausport.gov.au
Wed Sep 28 07:01:12 CEST 2011


Johan,
>
> Hi David.
>
>  
>
> I thought I would try to take a grip on this now after vacations and
> stuff. I think your second approach looks like a good way. Have you
> done any progress regarding this? I thought I should start by figuring
> out how logfetch works and how to send the messages to the server. I
> am also primarily looking to use this for switches and other network
> equipment that do not have any clients of their own.
>
>  
>
Sorry for no reply - been on a long vacation.

I haven't made any more progress on this yet. The client message with
just [msgs:*] section could be a problem with viewing the client data at
any given time if there is another client message coming in for the host
- it would flip-flop between the regular message with all the other
sections ([cpu] [disk] etc), and the one with the [msgs:*] section. I
guess I could pull the existing client message and inject the additional
[msgs:*] sections...

Anyhow, not likely to be a high priority to implement, but if that
changes I'll let you know.

David.
>
> /Johan
>
>  
>
> *From:*David Baldwin [mailto:david.baldwin at ausport.gov.au]
> *Sent:* den 10 maj 2011 01:48
> *To:* Johan Sjöberg
> *Cc:* xymon at xymon.com
> *Subject:* Re: [Xymon] Feature request for log test
>
>  
>
> Johan,
>
> Hi.
>
> We have a syslog server which receives logs from a number of servers
> and network devices.
>
> Currently we use the log test in Xymon to check for errors in these
> logs, and it works fine. But it is a little blunt since all log test
> end up in the same msgs test. It could also be a problem if we get an
> error in one log file, and need to ack or disable the test. In this
> case we would not get any alert if there were errors in one of the
> other logs.
>
> It would have been nice if you could add a client definition to a
> logfile test in analysis.conf, and report each log file as the device
> which is originates from. Or maybe as a separate syslog test to
> distinguish it from the msgs test.
>
> This way we could also set up individual alerts for the different
> logged devices.
>
> I could, of course, write a client- or serverside script for this, but
> I always find it difficult to do good log monitoring scripts and it
> would be nice to be able to use the logic already in Xymon
>
>  
>
> What do you think? Would anyone else be interested in this feature? I
> also have no idea how much work it would be.
>
>  
>
> I have also been looking at this same problem just recently.
>
> My log structure is keyed by IP address with daily files - e.g.
> /var/log/rsyslog/IP/messages-YYYMMDD - how the files are set up would
> need to be accommodated.
>
> I've thought of 2 approaches:
> * writing a utility from scratch to examine the log files - however
> this then requires all the message rules to be reimplemented rather
> than using analysis.cfg
> * writing a utility that uses 'logfetch' (xymon client utility) to
> grab relevant section of logfile and then send a client message (still
> need to work out what class and other details to include in the
> header) on behalf of the device which contains
> [msgs:/var/log/messages] section for the log file. With this approach,
> if the client has no other client message reporting we're OK, but if
> not, I'm not sure if it will cause problems also. Mostly I'd be
> looking at this for switches/firewalls/etc so no direct client report
> in place.
>
> David.
>

-- 
David Baldwin - Assistant Director, Infrastructure (acting)
Information and Communication Technology Services
Australian Sports Commission          http://ausport.gov.au
Tel 02 62147830 Fax 02 62141830       PO Box 176 Belconnen ACT 2616
david.baldwin at ausport.gov.au          Leverrier Street Bruce ACT 2617


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