[ClusterLabs] What Does the Monitor Action of the IPaddr2 RA Actually Do?

[Eric Robinson]

> -----Original Message-----
> From: Users <users-bounces at clusterlabs.org> On Behalf Of Andrei
> Borzenkov
> Sent: Thursday, June 3, 2021 12:23 AM
> To: users at clusterlabs.org
> Subject: Re: [ClusterLabs] What Does the Monitor Action of the IPaddr2 RA
> Actually Do?
>
> On 02.06.2021 23:38, Eric Robinson wrote:
> >> -----Original Message-----
> >> From: Users <users-bounces at clusterlabs.org> On Behalf Of Andrei
> >> Borzenkov
> >> Sent: Tuesday, June 1, 2021 1:14 PM
> >> To: users at clusterlabs.org
> >> Subject: Re: [ClusterLabs] What Does the Monitor Action of the
> >> IPaddr2 RA Actually Do?
> >>
> >> On 01.06.2021 19:50, Eric Robinson wrote:
> >>> This is related to another question I currently have ongoing.
> >>>
> >>> I see in the logs that monitoring failed for a VIP resource, and
> >>> that may
> >> have been responsible for node failover. I read the code for the
> >> IPaddr2 RA but it is not clear to me exactly what the monitor action
> >> looks for to determine resource health.
> >>>
> >>> May 27 09:55:31 001store01a crmd[92171]:  notice: State transition
> >>> S_IDLE - S_POLICY_ENGINE May 27 09:55:31 001store01a
> pengine[92170]: warning:
> >> Processing failed op monitor for p_vip_ftpclust01 on 001store01a:
> >> unknown error (1)
> >>>
> >>
> >> enable trace for monitor operation. See e.g.
> >> https://www.suse.com/support/kb/doc/?id=000019138.
> >>
> >
> > How does that differ from just doing debug-start, debug-stop, or debug-
> monitor?
> >
>
> I do not know what these do.

# pcs resource debug-<action>

...where <action> is one of start, stop, or monitor, shows the stdout from the resource agent.

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