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How to create a ceilometer alarm that monitors more than one meter via the command line

asked 2015-08-17 04:48:27 -0500

sanjana gravatar image

I want to create an alarm that fires when either of the two meters or one meter crosses threshold. (AND or OR operators) How can this be done via command line

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answered 2015-08-17 05:05:30 -0500

Here is the example of ceilometer how ceilometer alarm fires if it reaches threshold in both function

If cpu_util goes over 50% for 1 minute, the scale_up policy is run and another web server instance is created. If the cpu_util goes below 15% for 10 minutes, then a web server is removed

cpu_alarm_high: type: OS::Ceilometer::Alarm properties: description: Scale-up if the average CPU > 50% for 1 minute meter_name: cpu_util statistic: avg period: 60 evaluation_periods: 1 threshold: 50 alarm_actions: - {get_attr: [web_server_scaleup_policy, alarm_url]} matching_metadata: {'metadata.user_metadata.stack': {get_param: "OS::stack_id"}} comparison_operator: gt

cpu_alarm_low: type: OS::Ceilometer::Alarm properties: description: Scale-down if the average CPU < 15% for 10 minutes meter_name: cpu_util statistic: avg period: 600 evaluation_periods: 1 threshold: 15 alarm_actions: - {get_attr: [web_server_scaledown_policy, alarm_url]} matching_metadata: {'metadata.user_metadata.stack': {get_param: "OS::stack_id"}} comparison_operator: lt

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Can you please give the command to be used in the command line client for the above task? Also how i can be using the AND operator in this case

sanjana gravatar imagesanjana ( 2015-08-17 05:09:48 -0500 )edit

Hi Sanjana,

If u want to merge two alarm ( whatever parameter may be) use create two alrm and note their ID's combine it will make sense to ur quest"ceilometer alarm-combination-create --name test-comb --alarm_ids bfa5d625-019c-4f34-b31c-d4cfba3bae1f --alarm_ids bfa5d625-019c-4f34-b31c-d4cfba3bae1f

Maestropandy gravatar imageMaestropandy ( 2015-08-17 06:27:57 -0500 )edit

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Asked: 2015-08-17 04:48:27 -0500

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Last updated: Aug 17 '15