Hello. I found dubious behavior while playing with logical replication. When we disable a subscription, replication worker immediately stops.
=# ALTER SUBSCRIPTION s1 DISABLE; On the other hand even if we enable a subscription, worker doesn't start immediately. It takes 3 minutes in the worst case. (DEFAULT_NAPTIME_PER_CYCLE) The attached patch wakes up launcher when a subscription is enabled. This fails when a subscription is enabled immedaitely after disabling but it won't be a matter. regards, -- Kyotaro Horiguchi NTT Open Source Software Center
diff --git a/src/backend/commands/subscriptioncmds.c b/src/backend/commands/subscriptioncmds.c index 5bf8d93..63550f8 100644 --- a/src/backend/commands/subscriptioncmds.c +++ b/src/backend/commands/subscriptioncmds.c @@ -608,6 +608,9 @@ AlterSubscription(AlterSubscriptionStmt *stmt) BoolGetDatum(enabled); replaces[Anum_pg_subscription_subenabled - 1] = true; + if (enabled) + ApplyLauncherWakeupAtCommit(); + update_tuple = true; break; }
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