Checking enough connections amount according settings during Redisson start.

src/main/java/org/redisson/connection/SingleEntry.java

@@ -60,6 +60,10 @@ public class SingleEntry extends MasterSlaveEntry {
             AtomicInteger counter = new AtomicInteger(2);
             @Override
             public void operationComplete(Future<Void> future) throws Exception {
+                if (!future.isSuccess()) {
+                    res.setFailure(future.cause());
+                    return;
+                }
                 if (counter.decrementAndGet() == 0) {
                     res.setSuccess(null);
                 }

src/main/java/org/redisson/misc/ConnectionPool.java

@@ -54,31 +54,30 @@ public class ConnectionPool<T extends RedisConnection> {
 
     public Future<Void> add(final ClientConnectionsEntry entry) {
         final Promise<Void> promise = connectionManager.newPromise();
-        initConnections(entry, new Runnable() {
+        promise.addListener(new FutureListener<Void>() {
             @Override
-            public void run() {
+            public void operationComplete(Future<Void> future) throws Exception {
                 entries.add(entry);
-                promise.setSuccess(null);
             }
-        }, true);
+        });
+        initConnections(entry, promise, true);
         return promise;
     }
 
-    private void initConnections(final ClientConnectionsEntry entry, final Runnable runnable, boolean checkFreezed) {
+    private void initConnections(final ClientConnectionsEntry entry, final Promise<Void> initPromise, boolean checkFreezed) {
         int minimumIdleSize = getMinimumIdleSize(entry);
 
         if (minimumIdleSize == 0 || (checkFreezed && entry.isFreezed())) {
-            runnable.run();
+            initPromise.setSuccess(null);
             return;
         }
 
-        final AtomicInteger completedConnections = new AtomicInteger(minimumIdleSize);
+        final AtomicInteger initializedConnections = new AtomicInteger(minimumIdleSize);
         for (int i = 0; i < minimumIdleSize; i++) {
             if ((checkFreezed && entry.isFreezed()) || !tryAcquireConnection(entry)) {
-                if (completedConnections.decrementAndGet() == 0) {
-                    runnable.run();
-                }
-                continue;
+                Throwable cause = new RedisConnectionException("Can't init enough connections amount! from " + entry.getClient().getAddr());
+                initPromise.tryFailure(cause);
+                return;
             }
 
             Promise<T> promise = connectionManager.newPromise();
@@ -91,9 +90,14 @@ public class ConnectionPool<T extends RedisConnection> {
                         releaseConnection(entry, conn);
                     }
                     releaseConnection(entry);
+                    if (!future.isSuccess()) {
+                        Throwable cause = new RedisConnectionException("Can't init enough connections amount! from " + entry.getClient().getAddr());
+                        initPromise.tryFailure(cause);
+                        return;
+                    }
 
-                    if (completedConnections.decrementAndGet() == 0) {
-                        runnable.run();
+                    if (initializedConnections.decrementAndGet() == 0) {
+                        initPromise.setSuccess(null);
                     }
                 }
             });
@@ -272,9 +276,11 @@ public class ConnectionPool<T extends RedisConnection> {
 
                                     if (future.isSuccess() && "PONG".equals(future.getNow())) {
                                         entry.resetFailedAttempts();
-                                        initConnections(entry, new Runnable() {
+                                        Promise<Void> promise = connectionManager.newPromise();
+                                        promise.addListener(new FutureListener<Void>() {
                                             @Override
-                                            public void run() {
+                                            public void operationComplete(Future<Void> future)
+                                                    throws Exception {
                                                 if (entry.getNodeType() == NodeType.SLAVE) {
                                                     masterSlaveEntry.slaveUp(entry.getClient().getAddr().getHostName(), entry.getClient().getAddr().getPort(), FreezeReason.RECONNECT);
                                                 } else {
@@ -286,8 +292,8 @@ public class ConnectionPool<T extends RedisConnection> {
                                                     }
                                                 }
                                             }
-                                        }, false);
-
+                                        });
+                                        initConnections(entry, promise, false);
                                     } else {
                                         scheduleCheck(entry);
                                     }