[Beowulf] ganglia on CentOS 8?
engwalljonathanthereal at gmail.com
Wed Apr 1 21:30:54 PDT 2020
GNU nano 4.6 /usr/local/etc/gmond.conf
/* This configuration is as close to 2.5.x default behavior as possible
The values closely match ./gmond/metric.h definitions in 2.5.x */
daemonize = yes
setuid = yes
user = ganglia
debug_level = 0
max_udp_msg_len = 1472
mute = no
deaf = no
allow_extra_data = yes
host_dmax = 86400 /*secs. Expires (removes from web interface) hosts in 1
host_tmax = 20 /*secs */
cleanup_threshold = 300 /*secs */
gexec = no
<=========Here if that helps
Though not exactly what you are doing, bringing up the services:
service gmond stop
service gmetad stop
nginx -s reopen
nginx -s reload
service gmetad start
service gmond start
service ipfw3 stop
service ipfw3 start
On Wed, Apr 1, 2020 at 12:30 PM Jonathan Engwall <
engwalljonathanthereal at gmail.com> wrote:
> Gmond is reads information from gmetad which reads from the tcp udp, so I
> imagine you need to worry about the web side of it- openning the udp at
> least. I am trying something like this, using my phone right now:
> ipfw add state udp 0.0.0.0:8649
> But Nagios will be part of serving a web page though. If you don't want
> that, don't worry about it.
> systemctc status gmond gives you red?
> BSD automatically enables gmond and gmetad on startup. You should have a
> hidden file to handle this. You must match the BSD file structure. Why
> Ubuntu will run what Centos will not, I can't say. SourceForge docs are
> written for debian.
> On Wed, Apr 1, 2020, 12:03 PM David Mathog <mathog at caltech.edu> wrote:
>> I forgot to mention that on CentOS 8 the gmond from ganglia 3.7.2-31 does
>> share gexec status, CPU, load, etc. with the Ubuntu gmond, but 3.7.2-24
>> does not. For the older version there is a line for the CentOS 8 host in
>> a gstat query of the Ubuntu server, but all the values were 0 and gexec
>> status was "OFF" even though it was configured "ON". Even though that
>> most recent gmond version shares information with the other gmond on
>> Ubuntu it still will not report that information to any gstat.
>> There are packages for "zabbix" and "nagios" available, but not "icinga".
>> Presumably those work. They are both massive overkill as I only use
>> gmond and gstat in ganglia. Which of those two other monitoring systems
>> is simplest/lightest? At first glance, they both look a lot more
>> than ganglia.
>> David Mathog
>> mathog at caltech.edu
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