[Pacemaker] attrd_updater - how works?

Michael Schwartzkopff misch at clusterbau.com
Thu Jan 6 20:28:34 UTC 2011


Hi,

I have a question about the attrd_updater. How does it work exactly? Ok, I 
understand that it uses hysteresis updating the values in the CIB. But what 
happens if the values change just a little bit. Lets have an example:

I want to measure processor usage. The result will be a number from 0 to 100. 
In the normal case the number would be between 20 and 30, mostly 25, sometimes 
26, sometimes 22.

If I use attrd_updater to update the CIB, havind the waitung time longer than 
the measurement interval, will the values in the CIB updated at all?

Greetings,

-- 
Dr. Michael Schwartzkopff
Guardinistr. 63
81375 München

Tel: (0163) 172 50 98
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