[PATCH 1/2] replication: fix log message in case of sync failure

[Vladimir Davydov <vdavydov.dev@gmail.com>]

replicaset_sync() returns not only if the instance synchronized to
connected replicas, but also if some replicas have disconnected and
the quorum can't be formed any more. Nevertheless, it always prints
that sync has been completed. Fix it.

See #3422
---
 src/box/replication.cc | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/src/box/replication.cc b/src/box/replication.cc
index 7bdefccf..6d90ee5f 100644
--- a/src/box/replication.cc
+++ b/src/box/replication.cc
@@ -636,18 +636,10 @@ replicaset_sync(void)
 {
 	int quorum = replicaset_quorum();
 
-	if (quorum > 0)
-		say_verbose("synchronizing with %d replicas", quorum);
-
-	if (replicaset.applier.connected < quorum) {
-		/*
-		 * Not enough replicas connected to form a quorum.
-		 * Do not stall configuration, leave the instance
-		 * in 'orphan' state.
-		 */
-		say_crit("entering orphan mode");
+	if (quorum == 0)
 		return;
-	}
+
+	say_verbose("synchronizing with %d replicas", quorum);
 
 	/*
 	 * Wait until all connected replicas synchronize up to
@@ -657,10 +649,18 @@ replicaset_sync(void)
 	       replicaset.applier.connected >= quorum)
 		fiber_cond_wait(&replicaset.applier.cond);
 
-	if (quorum > 0) {
-		say_crit("replica set sync complete, quorum of %d "
-			 "replicas formed", quorum);
+	if (replicaset.applier.synced < quorum) {
+		/*
+		 * Not enough replicas connected to form a quorum.
+		 * Do not stall configuration, leave the instance
+		 * in 'orphan' state.
+		 */
+		say_crit("entering orphan mode");
+		return;
 	}
+
+	say_crit("replica set sync complete, quorum of %d "
+		 "replicas formed", quorum);
 }
 
 void
-- 
2.11.0