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Add option to modify sync commit per subscription

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This also changes default behaviour of subscription workers to
synchronous_commit = off.

Author: Petr Jelinek <petr.jelinek@2ndquadrant.com>
This commit is contained in:
Peter Eisentraut
2017-04-14 13:58:46 -04:00
parent 25371a72b9
commit 887227a1cc
13 changed files with 145 additions and 33 deletions
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6
src/backend/replication/logical/launcher.c
View File

@@ -129,17 +129,13 @@ get_subscription_list(void)
*/
oldcxt = MemoryContextSwitchTo(resultcxt);
sub = (Subscription *) palloc(sizeof(Subscription));
sub = (Subscription *) palloc0(sizeof(Subscription));
sub->oid = HeapTupleGetOid(tup);
sub->dbid = subform->subdbid;
sub->owner = subform->subowner;
sub->enabled = subform->subenabled;
sub->name = pstrdup(NameStr(subform->subname));
/* We don't fill fields we are not interested in. */
sub->conninfo = NULL;
sub->slotname = NULL;
sub->publications = NIL;
res = lappend(res, sub);
MemoryContextSwitchTo(oldcxt);

8
src/backend/replication/logical/worker.c
View File

@@ -1416,6 +1416,10 @@ reread_subscription(void)
MemoryContextSwitchTo(oldctx);
/* Change synchronous commit according to the user's wishes */
SetConfigOption("synchronous_commit", MySubscription->synccommit,
PGC_BACKEND, PGC_S_OVERRIDE);
if (started_tx)
CommitTransactionCommand();
@@ -1485,6 +1489,10 @@ ApplyWorkerMain(Datum main_arg)
MySubscriptionValid = true;
MemoryContextSwitchTo(oldctx);
/* Setup synchronous commit according to the user's wishes */
SetConfigOption("synchronous_commit", MySubscription->synccommit,
PGC_BACKEND, PGC_S_OVERRIDE);
if (!MySubscription->enabled)
{
ereport(LOG,