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Re: [pcp] Dynamic PMNS changes finally arrive

To: Martin Hicks <mort@xxxxxxx>
Subject: Re: [pcp] Dynamic PMNS changes finally arrive
From: Ken McDonell <kenj@xxxxxxxxxxxxxxxx>
Date: Wed, 30 Sep 2009 07:43:39 +1000
Cc: Mark Goodwin <goodwinos@xxxxxxxxx>, pcp@xxxxxxxxxxx
In-reply-to: <20090929133936.GT10563@xxxxxxxxxxxxxxxxxxxxxxxxx>
References: <1254034250.4466.12.camel@xxxxxxxxxxxxxxxxxxxxxxx> <4AC14301.204@xxxxxxxxx> <20090929133936.GT10563@xxxxxxxxxxxxxxxxxxxxxxxxx>
Reply-to: kenj@xxxxxxxxxxxxxxxx
On Tue, 2009-09-29 at 08:39 -0500, Martin Hicks wrote:
...
> How much of the cluster PMDA must be done now?
> 
> I suspect that we *must* at least update the duplicated data structures
> with the larger domain bit width.  I think the optional part would be to
> also start using the new dynamic namespace stuff...

Unless the cluster PMDA is assigned a domain number > 255 (seems
unlikely at this stage), it "should just work" (tm) ... the low-order 30
bits of a pmID and pmInDom are unchanged with the PMDA_INTERFACE_4 round
of changes.

Now you may _want_ to make changes to the cluster PMDA but I'm not sure
they are necessary before declaring 3.0 ready to go ... indeed one could
argue that 3.0 should happen first then the PMDA_INTERFACE_4 changes are
merged ready for a 3.1 release.

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