On 06/01/2016 04:06 PM, Adriano dos Santos Fernandes wrote:
> On 01/06/2016 08:18, Alex Peshkoff wrote:
>> Particularly lock files are not a problem - each database has own lock
>> file, and certainly same database can't be accessed with 2 engines
>> supporting different major ODS.
>> But we have a number of other shared files (trace, mapping change
>> notification, may be else). I see that trace name includes ODS version
>> name (fb12_trace). The only problem that opened database is ODS13 ;)
>> I.e. that issue worth to be checked and fixed.
>>
>>
> The multi-engine is a problem we always treated as easy but is not.
>
> Let say about external procedure plugin. It seems as a "server" (not
> engine plugin), i.e., must be a single plugin for multiple engines, but
> is engine who loads the plugin, so we have a problem of multiple engines
> loading a single DLL.

It's not critical by itself. When authentication plugins are used both 
by server (network listener) and engine we have almost same case and it 
works. But I fully agree that...
> Everything must be tested,


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