Ok, if you can guarantee that a gmetad will never hear from an old and a
new gmond at the same time, then you might be right.  I just wanted to
handle that case and make sure that all numbers add up correctly, no
matter what type they happen to be.

-twitham

-----Original Message-----
From: Carlo Marcelo Arenas Belon [mailto:[EMAIL PROTECTED] 
Sent: Thursday, March 20, 2008 1:19 PM
To: Witham, Timothy D
Cc: [email protected]; Brad Nicholes
Subject: Re: [Ganglia-developers] bug#128: combine integers and floats
into one double sum

On Thu, Mar 20, 2008 at 10:26:36AM -0700, Witham, Timothy D wrote:

> Without this, folks would have to upgrade
> all gmonds to 3.1 simultaneously or they would get incorrect totals.

I haven't yet validated this by testing the setup, but from my
understanding
of the code, you should be able to upgrade safely by doing :

1) upgrade gmetad to 3.1 (will be able to pull and process from old
gmond)
2) upgrade gmond to 3.1 in a cluster by cluster basis until you are
done.

running both 3.0 and 3.1 in the same cluster is not supported.  if you
have a
hierarchy of gmetad you will need to update them top to bottom as well
(a 3.1
gmetad will do the summary right for 3.1 or 3.0)

Carlo

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