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Simplify some code in logical replication launcher

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Avoid unnecessary locking calls when a subscription is disabled.

Author: Yugo Nagata <nagata@sraoss.co.jp>
This commit is contained in:
Peter Eisentraut 2017-08-15 15:13:06 -04:00
parent 270fec9f0b
commit e42351ae07
1 changed files with 4 additions and 1 deletions
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5
src/backend/replication/logical/launcher.c
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@ -929,11 +929,14 @@ ApplyLauncherMain(Datum main_arg)
Subscription *sub = (Subscription *) lfirst(lc); Subscription *sub = (Subscription *) lfirst(lc);
LogicalRepWorker *w; LogicalRepWorker *w;
if (!sub->enabled)
continue;
LWLockAcquire(LogicalRepWorkerLock, LW_SHARED); LWLockAcquire(LogicalRepWorkerLock, LW_SHARED);
w = logicalrep_worker_find(sub->oid, InvalidOid, false); w = logicalrep_worker_find(sub->oid, InvalidOid, false);
LWLockRelease(LogicalRepWorkerLock); LWLockRelease(LogicalRepWorkerLock);
if (sub->enabled && w == NULL) if (w == NULL)
{ {
last_start_time = now; last_start_time = now;
wait_time = wal_retrieve_retry_interval; wait_time = wal_retrieve_retry_interval;