Re: pgsql: Handle lack of DSM slots in parallel btree build.

On Tue, Feb 4, 2020 at 2:18 AM Thomas Munro <thomas.munro@gmail.com> wrote:
> Here is take 2.  I tested CI and CIC, and verified that workers are
> started or not depending on dsm_create() failure, using the attached
> fault injector patch.  (Fuzzing the regression tests repeatedly with
> that applied also revealed similar problems elsewhere in the tree,
> which I'll write about in a new thread.)

Can we reuse _bt_end_parallel() this time around? It would be easy to
add a "bool wait" argument to _bt_end_parallel(). All existing callers
would pass true, but when not using parallelism due to the new DSM
segment check we'd pass false.

-- 
Peter Geoghegan