[ClusterLabs] Fwd: Not getting Fencing monitor alerts

[Rohit Saini]

Hi Klaus,
Please see answers below for your queries:

Do you have any evidence that monitoring is happening when "resources are
unreachable"
( == fence_virtd is reachable?) like logs?
*[Rohit]* Yes, monitoring is happening. I have already tested this. I'm
getting pcs alerts accurately when monitoring goes down or up.

I would guess that there is no monitoring unless the fencing-resource is
accounted
as started successfully.
*[Rohit]* If that's the case, then I am never going to get pcs alerts. Only
way is to check status of resources via fence_xvm or fence_ilo4 to know if
resources are reachable or not. Do you agree with me?

Thanks,
Rohit

On Tue, Oct 16, 2018 at 2:03 PM Klaus Wenninger <kwenning at redhat.com> wrote:

> On 10/16/2018 07:43 AM, Rohit Saini wrote:
>
> Gentle Reminder!!
>
> ---------- Forwarded message ---------
> From: Rohit Saini <rohitsaini111.forum at gmail.com>
> Date: Tue, Oct 9, 2018 at 2:51 PM
> Subject: Not getting Fencing monitor alerts
> To: <users at clusterlabs.org>
>
>
> Hi,
> I am facing issue in getting pcs alerts for fencing resources.
>
> *Scenario:*
> 1. Configure the pcs alerts
> 2. Add stonith resources (resources are unreachable)
> 3. No monitoring alerts received.
>
> *Note:*
> If stonith resources (reachable) are successfully added, then I get pcs
> alert for monitor link down and up.
>
>
> Do you have any evidence that monitoring is happening when "resources are
> unreachable"
> ( == fence_virtd is reachable?) like logs?
> I would guess that there is no monitoring unless the fencing-resource is
> accounted
> as started successfully.
>
> Regards,
> Klaus
>
>
> *    ------PCS Alert configuration------*
>    pcs alert create id=${PCS_ALERT_ID}
> path=/var/lib/pacemaker/pw_alert.sh
>
>     pcs alert recipient add ${PCS_ALERT_ID}
> value=/var/lib/pacemaker/pw_alert.sh
>
> * ------Starting Stonith------*
>     my_fence_name="fence-xvm-$my_hostname"
>     pcs stonith show $my_fence_name
>     if [ $? -ne 0 ]; then
>         #monitor on-fail is "ignore" which means "Pretend the resource did
> not fail".
>         #Only alarm will be generated if monitoring link goes down.
>         pcs stonith create $my_fence_name fence_xvm \
>         multicast_address=$my_mcast_addr port=$my_hostport \
>         pcmk_host_list=$my_hostname action=$actionvalue
> delay=$my_fence_delay \
>         op start interval="100s" on-fail="restart" \
>         op monitor interval="5s" on-fail="ignore"
>         pcs constraint colocation add $my_fence_name with master
> unicloud-master INFINITY
>         pcs constraint order start $my_fence_name then promote
> unicloud-master
>         pcs stonith update $my_fence_name meta failure-timeout=3s
>     fi
>     peer_fence_name="fence-xvm-$peer_hostname"
>     pcs stonith show $peer_fence_name
>     if [ $? -ne 0 ]; then
>         pcs stonith create $peer_fence_name fence_xvm \
>         multicast_address=$peer_mcast_addr port=$peer_hostport \
>         pcmk_host_list=$peer_hostname action=$actionvalue
> delay=$peer_fence_delay \
>         op start interval="100s" on-fail="restart" \
>         op monitor interval="5s" on-fail="ignore"
>         pcs constraint colocation add $peer_fence_name with master
> unicloud-master INFINITY
>         pcs constraint order start $peer_fence_name then promote
> unicloud-master
>         pcs stonith update $peer_fence_name meta failure-timeout=3s
>     fi
>
>
>
>     pcs property set stonith-enabled=true
>
>
> Thanks,
> Rohit
>
>
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