diff options
Diffstat (limited to 'src/backend')
| -rw-r--r-- | src/backend/replication/logical/launcher.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/backend/replication/logical/launcher.c b/src/backend/replication/logical/launcher.c index 33f07f674d9..122db0bb134 100644 --- a/src/backend/replication/logical/launcher.c +++ b/src/backend/replication/logical/launcher.c @@ -925,7 +925,14 @@ ApplyLauncherRegister(void) { BackgroundWorker bgw; - if (max_logical_replication_workers == 0) + /* + * The logical replication launcher is disabled during binary upgrades, to + * prevent logical replication workers from running on the source cluster. + * That could cause replication origins to move forward after having been + * copied to the target cluster, potentially creating conflicts with the + * copied data files. + */ + if (max_logical_replication_workers == 0 || IsBinaryUpgrade) return; memset(&bgw, 0, sizeof(bgw)); |