On Tue, Mar 22, 2016 at 1:56 PM, Amit Kapila <amit.kapil...@gmail.com> wrote: > So as far as I can see there are two ways to resolve this issue, one is to > retry generation of dsm name if CreateFileMapping returns EACCES and second > is to append data_dir name to dsm name as the same is done for main shared > memory, that will avoid the error to occur. First approach has minor flaw > that if CreateFileMapping returns EACCES due to reason other then duplicate > dsm name which I am not sure is possible to identify, then we should report > error instead try to regenerate the name > > Robert and or others, can you share your opinion on what is the best way to > proceed for this issue.
For my 2c here, the approach using GetSharedMemName to identify the origin of a dynamic shared memory segment looks more solid in terms of robustness and collision handling. Retrying a segment is never going to be completely water-proof. -- Michael -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers