[Pacemaker] ping RA question

Yingliang Yang zjutyyl at gmail.com
Tue Jul 26 06:41:25 EDT 2011

2011/7/22 Dan Urist wrote:
> I am in the process of trying to write an fping RA, based on the
> pacemaker ping RA. My impetus for this is that I would like the RA to
> return success as soon as any ping succeeds; the behavior of linux's
> system ping as used in the standard ping RA is to run COUNT pings
> within the given deadline and only after COUNT or the deadline return
> success if any of the pings succeeded-- very inefficient.
> My question is this: the ping RA sets default values for
> OCF_RESKEY_CRM_meta_timeout and OCF_RESKEY_CRM_meta_interval, and it
> tests that OCF_RESKEY_CRM_meta_interval is an integer greater than 0.
> These variables aren't used anywhere else within the RA, but these are
> the same values in the "actions" section of the metadata for the monitor
> timeout and interval. I can't find any documentation that these
> variables serve as defaults for the monitor action in either the OCF
> agent developer guide or the pacemaker docs, but this seems to be the
> intent. Is this what they're there for?

 I think so.
The values in the "actions" section of the metadata for the monitor timeout
and interval, are used as monitor operation's default values.
OCF_RESKEY_CRM_meta_timeout and OCF_RESKEY_CRM_meta_interval are come from
the monitor operation's actual values.

Best Regards,
Yingliang Yang

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