pg_upgrade: Parallelize subscription check.

Nathan Bossart <nathan@postgresql.org>

Commit: 7baa36de58bdaeb4797d592aeb9ef1db08320853
Author: Nathan Bossart <nathan@postgresql.org>
Date: 2024-09-16T21:10:33Z
Releases: 18.0
pg_upgrade: Parallelize subscription check.

This commit makes use of the new task framework in pg_upgrade to
parallelize the part of check_old_cluster_subscription_state() that
verifies each of the subscribed tables is in the 'i' (initialize)
or 'r' (ready) state.  This check will now process multiple
databases concurrently when pg_upgrade's --jobs option is provided
a value greater than 1.

Reviewed-by: Daniel Gustafsson, Ilya Gladyshev
Discussion: https://postgr.es/m/20240516211638.GA1688936%40nathanxps13

Files

PathChange+/−
src/bin/pg_upgrade/check.c modified +111 −95

Discussion