Magnus Hagander <mag...@hagander.net> writes: > On Tue, Oct 18, 2016 at 1:00 AM, Vladimir Sitnikov < > sitnikov.vladi...@gmail.com> wrote: >> The test executes "select pg_sleep(10)" and tries to cancel it. In recent >> master builds, cancel seems to be ignored, and the statement lasts for 10 >> seconds.
> My guess is it's related to this: > https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=9e083fd4683294f41544e6d0d72f6e258ff3a77c > That's certainly not intended to break things, but that was changed on Oct > 17 and it relates to cancel keys. > What platform does the postgres server run on? Can can you check if query > cancel works on libpq or if it's completely broken? I can confirm that query cancel is broken in HEAD on RHEL6. regression=# select pg_sleep(10); ^CCancel request sent ... nothing happens for the balance of the 10 seconds ... regression=# There's a smoking gun in the postmaster log: 2016-10-18 09:10:34.547 EDT  LOG: wrong key in cancel request for process 18491 regards, tom lane -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers