On Fri, Jan 10, 2014 at 1:00 AM, knizhnik <knizhnik@garret.ru> wrote:
> On 01/09/2014 11:09 PM, Amit Kapila wrote:
>>
>>
>> Using DuplicateHandle(), we can make segment stick for Postmaster
>> lifetime. I have used below test (used dsm_demo module) to verify:
>
> As far as I understand DuplicateHandle() should really do the trick: protect
> segment from deallocation.
> But should postmaster be somehow notified about this handle?
> For example, if we really wants to delete this segment (drop extension), we
> should somehow make Postmaster to close this handle.
> How it can be done?
I think we need to use some form of IPC to communicate it to Postmaster.
I could not think of any other way atm.
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com