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:user-cbbf693f2c89@xymon.invalid]
*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
user-cbbf693f2c89@xymon.invalid Leverrier Street Bruce ACT 2617
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