From stephen.johnson at arkansas.gov  Thu Mar 17 15:23:34 2011
From: stephen.johnson at arkansas.gov (Stephen Johnson)
Date: Thu, 17 Mar 2011 10:23:34 -0500
Subject: [dsc] Question about upgrading ancient version of DSC to most
	current
Message-ID: <1300375414.7093.49.camel@sjohnson.state.ar.us>

Greeting. I've been running DSC since 2007. It's been a very handy tool
over the years. Especially recently when for a DoS episode we had.

I have an old pre-dsc-200801301758 version of DSC installed and running.
I'm about to make some major additions to my DNS infrastructure. So I'm
wanting to get DSC upgraded first and out of the way first. 

My question(s) is what order should I do the updates in. Should I do the
Collectors first and then the Presenter? Vice-Versa?  Do them all at
once? Or doesn't matter?

Thanks in advance. 
-- 
Stephen L Johnson  <stephen.johnson at arkansas.gov>
Unix Systems Administrator / DNS Hostmaster
Department of Information Systems
State of Arkansas
501-682-4339




From petrasch at denic.de  Mon Mar 21 07:21:13 2011
From: petrasch at denic.de (Christian Petrasch)
Date: Mon, 21 Mar 2011 08:21:13 +0100
Subject: [dsc] dsc Digest, Vol 40, Issue 1
In-Reply-To: <mailman.1.1300384805.71496.dsc@measurement-factory.com>
References: <mailman.1.1300384805.71496.dsc@measurement-factory.com>
Message-ID: <OF7D25473F.F33985DE-ONC125785A.002766C9-C125785A.002865B5@notes.denic.de>

Dear Stephen, 

for a DSC upgrade you have to update both, collectors and presenter. There 
is a new data structure in the xml format of the collected data, so the 
"old" presenter 
wouldn't understand. You have to migrate your old data with a script which 
is delievered in the new DSC package. I have done the upgrade this way..

1. I stopped collecting data.
2. Then I wait until all collectors transfer directories are empty 
(../upload/presenter .. )
3. Stop data transfer to presenter
4. Upgrade Collector
5. Start collecting data
6. Upgrade the presenter and the data structure (Store for the time you 
need for upgrading the presenter the collected data on the collector 
nodes)
7. Start data transfer to presenter..

It's a little bit tricky, cause you will get a new data structure during 
the update...

cheers..

Christian
-- 
Christian Petrasch 
IT-Services

DENIC eG
Kaiserstra?e 75-77
60329 Frankfurt am Main
GERMANY

E-Mail: petrasch at denic.de
http://www.denic.de

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Von:    dsc-request at measurement-factory.com
An:     dsc at measurement-factory.com
Datum:  17.03.2011 19:00
Betreff:        dsc Digest, Vol 40, Issue 1
Gesendet von:   dsc-bounces at measurement-factory.com



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Today's Topics:

   1. Question about upgrading ancient version of DSC to most
      current (Stephen Johnson)


----------------------------------------------------------------------

Message: 1
Date: Thu, 17 Mar 2011 10:23:34 -0500
From: Stephen Johnson <stephen.johnson at arkansas.gov>
To: "dsc at measurement-factory.com" <dsc at measurement-factory.com>
Subject: [dsc] Question about upgrading ancient version of DSC to most
                 current
Message-ID: <1300375414.7093.49.camel at sjohnson.state.ar.us>
Content-Type: text/plain; charset="UTF-8"

Greeting. I've been running DSC since 2007. It's been a very handy tool
over the years. Especially recently when for a DoS episode we had.

I have an old pre-dsc-200801301758 version of DSC installed and running.
I'm about to make some major additions to my DNS infrastructure. So I'm
wanting to get DSC upgraded first and out of the way first. 

My question(s) is what order should I do the updates in. Should I do the
Collectors first and then the Presenter? Vice-Versa?  Do them all at
once? Or doesn't matter?

Thanks in advance. 
-- 
Stephen L Johnson  <stephen.johnson at arkansas.gov>
Unix Systems Administrator / DNS Hostmaster
Department of Information Systems
State of Arkansas
501-682-4339




------------------------------

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End of dsc Digest, Vol 40, Issue 1
**********************************



From wessels at measurement-factory.com  Tue Mar 22 16:37:58 2011
From: wessels at measurement-factory.com (Duane Wessels)
Date: Tue, 22 Mar 2011 10:37:58 -0600 (MDT)
Subject: [dsc] Question about upgrading ancient version of DSC to most
 current
In-Reply-To: <1300375414.7093.49.camel@sjohnson.state.ar.us>
References: <1300375414.7093.49.camel@sjohnson.state.ar.us>
Message-ID: <alpine.BSF.2.00.1103221026430.54849@measurement-factory.com>




On Thu, 17 Mar 2011, Stephen Johnson wrote:

> Greeting. I've been running DSC since 2007. It's been a very handy tool
> over the years. Especially recently when for a DoS episode we had.
>
> I have an old pre-dsc-200801301758 version of DSC installed and running.
> I'm about to make some major additions to my DNS infrastructure. So I'm
> wanting to get DSC upgraded first and out of the way first.
>
> My question(s) is what order should I do the updates in. Should I do the
> Collectors first and then the Presenter? Vice-Versa?  Do them all at
> once? Or doesn't matter?

Hi Stephen,

I suggest that you upgrade the presenter first.  The new presenter code
knows how to read the old file formats.  For example here is a snippet
from dsc-xml-extractor.pl:

         # this is the old way -- one dataset per file
         #
         if ($dataset ne 'dscdata') {
                 return extract_dataset($XML, $dataset);
         }

         # this is the new way of grouping all datasets
         # together into a single file
         #
         while (my ($k,$v) = each %{$XML->{array}}) {
                 extract_dataset($v, $k) or die "dataset $k extraction failed";
         }


If you've read the CHANGES file, and the 2008-01-09 entry in particular,
then you know that you should run the update-dat-file-locations.sh script
so that the presenter can find your historical data.

Once you have the presenter upgraded go ahead and upgrade the collector
software.

Duane W.