Call me old fashioned, but:
who | wc -l | awk '{print $1}'
strikes me as safer
regard,
richard
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Martin
Knoblauch
Sent: 25 January 2006 09:25
To: Ben Hartshorne; ganglia-general@lists.sourceforge.net
Subject: Re: [Ganglia-general] intermittent blanks in graphs
> error message:
>
> Jan 24 17:24:18 localhost /usr/sbin/gmetad[30443]: RRD_update
> (/var/lib/ganglia/rrds/production/raiden-8-db1/users.rrd): conversion
> of 'min,' to float not complete: tail 'min,'
>
> This seems to relate to a recent change I made that I had forgotten
> about. :) I added the following line to my crontab:
>
> */2 * * * * /usr/bin/gmetric --name="users" --value=`w | head -1 | awk
> '{print $6}'` --type=int16
>
> The purpose of this line is to create a graph representing the number
> of logged in users to the host. it seems right to me - do any of you
> see a
> problem with this line?
>
actually, on my system (FC4) your command results in:
$ w | head -1 | awk '{print $6}'
users,
$
which is not really what you want to put into that metric :-)
Apparently yours seem to report "min," which would be "$4" on my
system. The number of users would be "$5". Maybe different versions of
"procps"?
Hmm. Weird. Just played around with the setting of "LANG" and not the
command reports "load" instead of "users,". Really weird .....
Martin
------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www: http://www.knobisoft.de
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