[Info-vax] OpenSSL CSWS-2.2-1 -- Rdb multiversion...

[Stephen Hoffman]

On 2019-04-30 20:20:21 +0000, Jan-Erik Sderholm said:

> Den 2019-04-30 kl. 17:50, skrev Stephen Hoffman:
> 
>> 
>> As for OpenSSL, one of the few precedents for installing parallel 
>> versions—and one of the few that works—is multi-version Rdb.  There's 
>> little (no?) documentation on what's involved with that too, and it's 
>> easy to get it wrong.
>> 
> A slightly unnecessary and mostly wrong comment.

I referenced multi-version Rdb as an example of an installer that 
allows multiple versions.

Rdb is certainly an example of an installer that permits parallel 
installations.

Rdb does arrive with documentation of how to install Rdb, too.

Rdb does not arrive with documentation around how to *construct* a 
multi-version installation kit, whether Rdb or otherwise.

You have pointed to some documentation for a kit that I had 
acknowledged as a multi-version kit, and a design that works pretty 
well.

However, you did not reference design and implementation documentation 
for a multi-version kit, whether PCSI or VMSINSTAL or otherwise.

Distinct from Rdb, there's ample evidence that there have been folks 
creating kits have tried and have encountered issues with their 
designs, too.

Yes, in the absence of design and implementation documentation, having 
some familiarity with an example is valuable.

There's a hole here in the OpenVMS kitting documentation.

There's are related holes in the OpenVMS application design 
documentation around supporting upgrades in our apps, supporting 
cluster rolling upgrades in our apps, and better supporting app 
availability.




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