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RE: [hobbit] More about linecount
- To: <hobbit (at) hswn.dk>
- Subject: RE: [hobbit] More about linecount
- From: "Hubbard, Greg L" <greg.hubbard (at) eds.com>
- Date: Fri, 25 Aug 2006 12:56:41 -0500
- Thread-index: AcbIa408+KO8ftiJQEiQbIgPmVQ+OgAA4W0A
- Thread-topic: [hobbit] More about linecount
Yep, the problem is really in how the RRD is set up. I have some custom
scripts that simply "wc -l" some files and these go into an RRD as a
gauge...I thought this function might let me get out from under all the
custom moving parts, but no luck in this release.
But I also use "DERIVED" counts to see what my incoming syslog and trap
rates are -- so the linecount function could replace these custom
scripts, except that the way I have it now these items get their own
status dot and a nicely labeled graph. The new linecount graphs are
buried in the "trends" stack so you have to know to go look for them
there.
Lest I sound too much like a whiner -- I really like where Henrik is
taking us all with each new Hobbit release!
GLH
-----Original Message-----
From: Richard.Hall [mailto:Richard.Hall (at) ingenta.com]
Sent: Friday, August 25, 2006 12:22 PM
To: hobbit (at) hswn.dk
Subject: Re: [hobbit] More about linecount
Replying to myself ...
On Fri, 25 Aug 2006, Richard.Hall wrote:
> Greg,
>
> On Fri, 25 Aug 2006, Hubbard, Greg L wrote:
>
> > Well, now I know how linecount works. I was hoping that it would
> > let me track the number of lines in a file and spot changes over
> > time. But this is not what line count is for -- it is intended to
> > match some arbitrary subset of lines in a file, and then this is
> > tracked via RRD as a "derived" value, meaning what is graphed is how
> > the count changes over time, scaled into units per second. This is
> > perfect if you want to watch the rate of login failures on your
> > system, but not very useful for what I wanted.
> >
> > So I will monitor changes in file size (which might show me
> > changes), but cannot readily translate this into a line count.
> >
> > So, an enhancement request -- add a "line count" as a file
> > parameter, in addition to all the normal things that are available
now?
>
> If I'm remembering correctly what Henrik said about how linecount
> works (sorry, didn't keep the message), can't you do something like
>
> totallines:.*
>
> to make the pattern match every line of the file?
Doh! Obviously not - you want the total, not the rate of change.
Apologies for the noise.
Richard
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