[Orca-users] RE: trying to create my own orcallator...

[Johnson, Bruce]

Steve,

The timestamp is generated with a simple time() call and printing the
decimal result.  This works in both Perl and C.  I think there's also a way
to get it with the date command from a shell script, but I leave it to you
to consult the man pages.

"DNnsrkcmdit" is Welsh for "the colors of your status lights".  Okay, maybe
not Welsh, but I think it's output from an orcallator.se routine that
monitors a variety of vital functions and prints a cryptic snapshot that
indicates whether they are above or below certain thresholds.  It's not an
essential field unless you're trying to graph or display this status
somewhere.  I think it's used by Big Brother.  In any case, my installation
of Orca worked fine without this field.

Cheers!
--
Bruce A. Johnson		PictureVision, Inc.
Sr. Software Engineer	520 Herndon Pkwy.
(703)326-1253		Herndon, VA 20170
http://info.photonet.com

-----Original Message-----
Date: Wed, 18 Oct 2000 21:10:29 -0400
From: Steve Gilbert <gilbert at cs.utk.edu>
Subject: trying to create my own orcallator...


I want to use Orca 0.26 on a Solaris 2.6 machine to graph performance
data from a cluster of Linux machines.  Obviously, there is no orcallator
for Linux, so I'm attempting to create my own using UCD SNMP and some
other tools.  All I want to monitor (for now) are the following stats:

Average # Processes in Run Queue
CPU Usage
Memory Free
Memory Available Swap Space

...I am able to generate those stats easily enough and get them over to
my Orca machine.  I'm looking for a little help in taking this data and
creating a percol-* file.  Right now, I'm thinking something like this:

 timestamp locltime DNnsrkcmdit   uptime  usr%  sys%  1runq  5runq 15runq
swap_avail  freememK
 970038001 00:00:01 wwwwwwwgwww  4460363   0.4   0.6   0.00   0.01   0.01
130504    506560

...my question is about the first four fields and which ones I need and
don't need.  First, if this stuff is already documented somewhere, please
point me towards it.  I couldn't find much while digging through the
distribution.  My questions are:

1. How is that "timestamp" generated?
2. Do I have any need for the "DNnsrkcmdit" status field, and if so, what
   on earth does it all mean?  I looked at orcallator.se, but it's not
   obvious (to me anyway) how those are used.  I'm hoping I can just cut
   it out if it's not needed for my purposes.
3. Do I have any need for the "uptime" considering what I want to monitor?

Thanks for any help/advice anyone can offer.  This is going to be a
challenging project for me.

Steve Gilbert
gilbert at cs.utk.edu


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