Increasing VM monitoring time

Community Support HA / Federation
1

Hello,

I would like to increase VM monitoring time. By default, each 30 seconds OpenNebula runs a monitoring process for all VMs. In my scenario, sometimes server is running more than 450 VMs. I think that server could monitor in 300 seconds (5 minutes) interval. I have modified some parameters in /etc/one/monitord.conf:

#MANAGER_TIMER = 15
MANAGER_TIMER = 60
MONITORING_INTERVAL_HOST = 180
#HOST_MONITORING_EXPIRATION_TIME = 43200
HOST_MONITORING_EXPIRATION_TIME = 0
#VM_MONITORING_EXPIRATION_TIME = 43200
VM_MONITORING_EXPIRATION_TIME = 0

and other parameter in /etc/one/sched.conf

SCHED_INTERVAL = 30
MAX_VM       = 50
###MAX_VM       = 5000
MAX_DISPATCH = 30
MAX_HOST     = 20

However, OpenNebula continues running a monitoring process each 30 seconds.

What have I done wrong?

Thanks.

2

https://docs.opennebula.io/6.0/installation_and_configuration/opennebula_services/monitoring.html#adjust-monitoring-intervals

I think you may be interested in the PROBES_PERIOD attribute array. After changing it you need to restart the agents and opennebula.

3

Hi,

I have configured PROBES_PERIOD array in this way:

PROBES_PERIOD = [
BEACON_HOST = 120,
SYSTEM_HOST = 600,
MONITOR_HOST = 120,
STATE_VM = 120,
MONITOR_VM = 300,
SYNC_STATE_VM = 180
]

but after restarting opennebula, opennebula-hem and opennebula-scheduler daemons, ONE is checking VM in a 30 seconds interval (old value), and not in 120 seconds interval (new value)…

4

Hi,

The VM monitoring is done on the hosts so you should try restarting the monitoring daemon there too. Disable/enable the hosts and then an onehost forceupdate should restart the monitoring.

BR,
Anton

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