On Tue, Jul 25, 2017 at 1:42 PM, Alvaro Herrera <alvhe...@2ndquadrant.com> wrote: > As I see it, we need to backpatch at least parts of this patch. I've > received reports that in earlier branches pglogical and BDR can > sometimes leave slots behind when removing nodes, and I have a hunch > that it can be explained by the bugs being fixed here. Now we cannot > use condition variables in back-branches, so we'll need to figure out > how to actually do it ...
If all you had to back-patch was the condition variable code itself, that might not really be all that bad, but it depends on the WaitEventSet stuff, which I think is far too dangerous to back-patch. However, you might be able to create a dumber, slower version that only uses WaitLatch. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
