Check your gmond.conf . Looking at mind I see:
/* This collection group will send general info about this host every
1200 secs.
This information doesn't change between reboots and is only collected
once. */
collection_group {
collect_once = yes
time_threshold = 1200
.
.
.
metric {
name = "mem_total"
title = "Memory Total"
}
.
.
.
}
Which instructs gmond to collect the information from the system only
once (at daemon startup), although it is sent out every 20 minutes. The
distributed configuration files hint that swap file size should be
moved, I would suggest you do the same to mem_total. Indeed one could
question whether any metric should be assumed to be constant in your
case.
Martin Rushton
HPC System Manager, Weapons Technologies
Tel: 01959 514777, Mobile: 07939 219057
email: [email protected]
www.QinetiQ.com <http://www.qinetiq.com/>
QinetiQ - Delivering customer-focused solutions
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________________________________
From: James Wolner [mailto:[email protected]]
Sent: 01 March 2011 06:52
To: [email protected]
Subject: [Ganglia-general] Clearing or Erasing constant metrics
and hostname
Hello All Ganglia!
I've been unable to find information about how I can clear
constant metrics for a gmond host.
I am running servers on the cloud which gives me the ability to
scale RAM up or down at times.
Problem is, when I scale, for example I double the RAM from 1 to
2 G, Ganglia does not know that the RAM has been increased and therefore
all the graphs are actually faulty.
I've tried deleting the rrds folders for that host and
restarting gmetad (and gmond on the host with new RAM) but the constant
metrics seem to be, indeed, constant.
Is there a way to reset/clear - start over and get new constant
metrics?
I've had the same problem with hostnames. I finally figured out
that if the gmetad host just has the hostnames I'd like to see in its
/etc/hosts file, then all is well. But that, like the above problem,
only works the first time you start up the gmond host - after that it
seems impossible to change.
Thanks a bunch
James
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