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Re: [hobbit] Logfile monitoring - I'd like some comments
On Wed, Feb 15, 2006 at 07:50:15AM, Henrik Storner wrote:
> Hi Rolf,
>
> On Wed, Feb 15, 2006 at 07:30:11AM +0100, Rolf Schrittenlocher wrote:
> > Hi Henrik,
> >
> > that sounds wonderful, your ideas are pretty good.
>
> Thanks.
>
> > I have one suggestion and one point to think about.
> >
> > For monitoring application-logs the config file soon would become very
> > complex and likely unreadable. There it would be nice if there is a
> > possibilty for include-files. So general definitions -e.g. for
> > OS-related logs - would be made in the general config file, all the
> > individual stuff in <host>.config files.
>
> That would make sense, I agree.
>
> > Second, there are logs which change their names once the server or the
> > application stops. So a "message.log" might become "message<date>.log"
> > while there is a new message.log now. Still the last informations in
> > "message<date>.log" are relevant, especially if the reason for the new
> > log was a crash of the application. I don't know how to deal with this
> > situation as there are multiple ways how logs might change their names
> > but perhaps others have an idea of how to do that.
>
> It's something I thought about too, although my concerns were with logfiles
> that get rotated at a specific time of day, not those that change when
> an application restarts. But like yourself I couldn't find a really
> good solution.
>
We have similar problem where we actually need to monitor
messsges.`date` file. With bb-msgtab you cannot do that. I wonder if
hobbit could be able monitor a file with dynamic extension like that.
> The file being renamed is not the only problem - it may get compressed,
> moved to a different directory, ... lots of ways for it to get lost.
>
> So - if anyone has a bright idea, do speak up.
Currently we have created symbolic files like these
messages.020106 --> messages
messages.020206 --> messages
messages.022806 --> messages
So when the application tries to put files on the specific date file it
does not matter since bb-msgtab always reading the `messages' file which
never changed.
Thanks
>
>
> Regards,
> Henrik
>
>
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>
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