>>> On 7/17/2008 at 11:05 AM, in message <[EMAIL PROTECTED]>, Carlo Marcelo Arenas Belon <[EMAIL PROTECTED]> wrote: > On Wed, Jul 16, 2008 at 04:43:32PM -0700, Bernard Li wrote: >> On Wed, Jul 16, 2008 at 9:36 AM, Carlo Marcelo Arenas Belon >> > >> > Other than that, as Brad said, the XML interface between gmetad/gmond has >> > been kept backward compatible both ways and therefore it should work >> > either way. >> >> I am running a 3.0.x gmetad which aggregates data from other gmetads, >> one of which has been upgraded to 3.1.x. Because we changed memory >> units from uint32 to float in 3.1.x, the summing of mem_total of all >> the clusters is thus incorrect. > > Right, and this was another one of those "document and keep going" things > we forgot to document, and I completely forgot about but where core to my > original upgrade instructions : > > > http://www.mail-archive.com/ganglia-developers@lists.sourceforge.net/msg03816 > .html > > So to rephrase. If you have a hierarchy of gmetads then the only way to > upgrade is to upgrade the top one first (the one that pulls information from > all the others) and then the leaves, otherwise as you said you will have > problems with the memory summaries. > > As explained also somewhere else in that thread (or related), unless we fix > also gmetad in 3.0 to understand metrics that had different units to try to > facilitate the migration, that is the only option. > > But sincerely I'd gave up for now on making any more backports proposals > when > something as simple as a 3 year old PHP script has been proposed without any > comments twice for the last 2 months and is sitting in the STATUS file for > 3.0 > since Jun. > > For now, you might want to add that to the mythical upgrade instructions or > tell me where they are so I can add it myself. > > Carlo >
You can add the notes here http://ganglia.wiki.sourceforge.net/ganglia_release_notes Or create a new page specifically for upgrading from 3.0 to 3.1. Brad ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
