[ClusterLabs Developers] Does pacemaker support to receive the event of VIP changes?

[Qing Feng Hao]

Hi Klaus,

Excellent! I'll look into it, appreciate it!

On 2023/4/14 19:59, Klaus Wenninger wrote:
> On Fri, Apr 14, 2023 at 9: 01 AM Qing Feng Hao 
> <haoqf@ linux. vnet. ibm. com> wrote: Hi Everyone, Sorry to bother, I 
> have setup a HA cluster with pacemaker, and want to so some special 
> handling when VIP (virtualip) changes. VIP is the virtual
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> On Fri, Apr 14, 2023 at 9:01 AM Qing Feng Hao 
> <haoqf at linux.vnet.ibm.com> wrote:
>
>     Hi Everyone,
>
>     Sorry to bother, I have setup a HA cluster with pacemaker, and
>     want to so some special handling when VIP (virtualip) changes. VIP
>     is the virtual ip resource created by pcs like "* virtualip
>     (ocf::heartbeat:IPaddr2):        Started <node ip>"
>
>     But I didn't find it in ClusterMon
>     https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/configuring_the_red_hat_high_availability_add-on_with_pacemaker/s1-eventnotification-haar,
>     this only mentions the fence event.  I also checked
>     "./pacemaker/agents/ocf/ClusterMon.in":
>
>     |<parameter name="extra_options"> <longdesc lang="en"> Additional
>     options to pass to crm_mon. Eg. -n -r </longdesc> <shortdesc
>     lang="en">Extra options</shortdesc> <content type="string"
>     default="" /> </parameter> |
>
>     Does anyone know if pacemaker support this kind of event
>     notification and how to subscribe? Thanks a lot.
>
> ClusterMon is kind of the legacy approach.
> Did you look into alerts?
> https://clusterlabs.org/pacemaker/doc/2.1/Pacemaker_Explained/html/alerts.html 
>
>
> Klaus
>
>     Best regards
>
>     QingFeng Hao
>
>
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-- 
Best regards
QingFeng Hao
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