[ClusterLabs] SAPHanaController & SAPHanaTopology question

[Andrei Borzenkov]

On Fri, Apr 2, 2021 at 3:42 PM Strahil Nikolov <hunter86_bg at yahoo.com> wrote:
>
> Thanks Andrei,
>
> so can we assume that killing those processes during NFS umount is acceptable and no risk to the HANA data can be observed ?
>

This is a question for SAP support, not for some random public mailing list.

> I have noticed that the cluster is killing those when the cluster is being stopped (including NFS) .
>
>
> Best Regards,
> Strahil Nikolov
>
> On Fri, Apr 2, 2021 at 14:31, Andrei Borzenkov
> <arvidjaar at gmail.com> wrote:
> On Fri, Apr 2, 2021 at 12:30 PM Strahil Nikolov <hunter86_bg at yahoo.com> wrote:
> >
> > To be more specific, the processes left are 'hdbrsutil'
>
> This process holds database content in memory after shutdown (I
> believe, for 1 hour by default) to facilitate fast startup. You can
> disable it. See SAP note 2159435.
>
>
> > and the 'sapstartsrv'.
> >
>
> Well, this is the primary service that handles all requests from
> sapcontrol. It is sort of supposed to be always running. Resource
> agent handles missing sapstartsrv during activation.
>
> I guess if you have a valid use case you may try to open a service
> request or github issue to also stop sapstartsrv.
>
>
> > Best Regards,
> > Strahil Nikolov
> >
> > On Fri, Apr 2, 2021 at 12:20, Strahil Nikolov
> > <hunter86_bg at yahoo.com> wrote:
> > Hello All,
> >
> > I am testing the newly built HANA (Scale-out) cluster and it seems that:
> > Neither SAPHanaController, nor SAPHanaTopology are stopping the HANA when I put the nodes (same DC = same HANA) in standby. This of course leads to a situation where the NFS cannot be umounted and despite the stop timeout  - leads to fencing(on-fail=fence).
> >
> > I thought that the Controller resource agent is stopping the HANA and the slave role should not be 'stopped' before that .
> >
> > Maybe my expectations are wrong ?
> >
> > Best Regards,
> > Strahil Nikolov
>
> >
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