[ClusterLabs Developers] [EXTERNAL] Re: Pacemaker scripts for Oracle

Wed Jun 14 13:59:59 UTC 2023

Hi Adrian,

In that case, your best bet is opening an issue with what you wrote
here at:

 https://github.com/ClusterLabs/resource-agents/issues

On Wed, 2023-06-14 at 13:17 +0000, Golding, Adrian (Senior Database
Engineer) wrote:
> Hi Ken,
> 
> I had a look there and it just confused the heck out of me.  I don’t
> think a pull request is for me.  I'll just explain my issue/query and
> maybe you can post it on somewhere or let me know how and where I
> should...
> 
> Here we go: -
> 
> When you create an Oracle Listener (oralsnr) resource with "pcs
> resource create", one of the parameters it requires is "sid" and the
> documentation asks you to enter the ORACLE_SID for that.
> 
> I think this should be changed to ask for a "TNS Entry" because...
> 
> 1) All the oralsnr script does is tnsping that value so we should be
> able to call it what we want and create an appropriate tnsnames.ora
> entry for it.
> 2) Using the ORACLE_SID is not ideal as there may already be a
> tnsnames.ora entry bearing that name and using it for dual purposes
> is dangerous (what if someone decided it was no longer required and
> removed it?).
> 3) It makes no sense to use the ORACLE_SID, that is the database
> identifier.  This is the listener so if anything the listener name
> would be more appropriate.
> 
> In practice there doesn't seem to be any problem setting any desired
> value for "sid".  I have been using the listener name as it makes
> more sense and I can then have a dedicated tnsnames.ora entry with
> that name (it can be a simple one without any connect data clause as
> nobody/nothing will be using it for a database connection) therefore
> avoiding any risk of it being accidently removed or of it being used
> for other purposes.
> 
> My problem is, people are averse to doing this because it goes
> against what the documentation says, despite the fact it makes much
> more sense to do as I have described above.
> 
> Therefore, I think this is really just a documentation issue and I
> think it should be amended to state that "sid" should be the name of
> a (dedicated) tnsnames.ora entry for the service to tnsping.
> 
> Cheers,
> Adrian.
> 
> 
> -----Original Message-----
> From: Ken Gaillot <kgaillot at redhat.com>
> Sent: Monday, June 12, 2023 2:32 PM
> To: developers at clusterlabs.org
> Cc: Golding, Adrian (Senior Database Engineer) <Adrian.Golding at sky.uk
> >
> Subject: [EXTERNAL] Re: [ClusterLabs Developers] Pacemaker scripts
> for Oracle
> 
> On Fri, 2023-06-09 at 08:14 +0000, Golding, Adrian (Senior Database
> Engineer) via Developers wrote:
> > Hi,
> > 
> > I would like to ask how I get approach a documentation enhancement
> > for
> > the "oralsnr" pacemaker script.
> 
> Hi Adrian,
> 
> That is part of the resource-agents project. You can file a pull
> request at:
> 
>  https://github.com/ClusterLabs/resource-agents
> 
> > I won’t explain here as I’m not sure I am emailing the correct
> > address
> > but am happy to explain if I get a response to this.
> > 
> > Cheers,
> > Adrian.
> > 
> > Adrian Golding
> > Senior Database Engineer
> > Technology Services
> > Comms & Infrastructure
> > 
> > Sky UK
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> --
> Ken Gaillot <kgaillot at redhat.com>
> 
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-- 
Ken Gaillot <kgaillot at redhat.com>