Send channelFuture support improvement. Reconnection detection speedup

src/main/java/org/redisson/BaseConfig.java

@@ -25,7 +25,7 @@ class BaseConfig<T extends BaseConfig<T>> {
      */
     private int timeout = 60000;
 
-    private int retryAttempts = 5;
+    private int retryAttempts = 20;
 
     private int retryInterval = 1000;
 

src/main/java/org/redisson/CommandBatchExecutorService.java

@@ -24,6 +24,7 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicReference;
 
+import org.redisson.client.RedisConnectionClosedException;
 import org.redisson.client.RedisConnectionException;
 import org.redisson.client.RedisException;
 import org.redisson.client.RedisMovedException;
@@ -35,6 +36,8 @@ import org.redisson.client.protocol.RedisCommand;
 import org.redisson.client.protocol.decoder.MultiDecoder;
 import org.redisson.connection.ConnectionManager;
 
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelFutureListener;
 import io.netty.util.Timeout;
 import io.netty.util.TimerTask;
 import io.netty.util.concurrent.Future;
@@ -170,7 +173,7 @@ public class CommandBatchExecutorService extends CommandExecutorService {
         final Promise<Void> attemptPromise = connectionManager.newPromise();
         final AtomicReference<RedisException> ex = new AtomicReference<RedisException>();
 
-        TimerTask timerTask = new TimerTask() {
+        final TimerTask retryTimerTask = new TimerTask() {
             @Override
             public void run(Timeout timeout) throws Exception {
                 if (attemptPromise.isDone()) {
@@ -199,10 +202,21 @@ public class CommandBatchExecutorService extends CommandExecutorService {
             for (CommandEntry c : entry.getCommands()) {
                 list.add(c.getCommand());
             }
-            connection.send(new CommandsData(attemptPromise, list));
+            ChannelFuture future = connection.send(new CommandsData(attemptPromise, list));
 
             ex.set(new RedisTimeoutException());
-            Timeout timeout = connectionManager.getTimer().newTimeout(timerTask, connectionManager.getConfig().getTimeout(), TimeUnit.MILLISECONDS);
+            final Timeout timeout = connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getTimeout(), TimeUnit.MILLISECONDS);
+
+            future.addListener(new ChannelFutureListener() {
+                @Override
+                public void operationComplete(ChannelFuture future) throws Exception {
+                    if (!future.isSuccess()) {
+                        timeout.cancel();
+                        ex.set(new RedisConnectionClosedException("channel: " + future.channel() + " closed"));
+                        connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getRetryInterval(), TimeUnit.MILLISECONDS);
+                    }
+                }
+            });
 
             if (entry.isReadOnlyMode()) {
                 attemptPromise.addListener(connectionManager.createReleaseReadListener(slot, connection, timeout));
@@ -211,7 +225,7 @@ public class CommandBatchExecutorService extends CommandExecutorService {
             }
         } catch (RedisConnectionException e) {
             ex.set(e);
-            connectionManager.getTimer().newTimeout(timerTask, connectionManager.getConfig().getRetryInterval(), TimeUnit.MILLISECONDS);
+            connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getRetryInterval(), TimeUnit.MILLISECONDS);
         }
         attemptPromise.addListener(new FutureListener<Void>() {
             @Override

src/main/java/org/redisson/CommandExecutorService.java

@@ -26,6 +26,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicReference;
 
 import org.redisson.client.RedisConnection;
+import org.redisson.client.RedisConnectionClosedException;
 import org.redisson.client.RedisConnectionException;
 import org.redisson.client.RedisException;
 import org.redisson.client.RedisMovedException;
@@ -38,6 +39,8 @@ import org.redisson.connection.ConnectionManager;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelFutureListener;
 import io.netty.util.Timeout;
 import io.netty.util.TimerTask;
 import io.netty.util.concurrent.DefaultPromise;
@@ -335,7 +338,7 @@ public class CommandExecutorService implements CommandExecutor {
         final Promise<R> attemptPromise = connectionManager.newPromise();
         final AtomicReference<RedisException> ex = new AtomicReference<RedisException>();
 
-        TimerTask timerTask = new TimerTask() {
+        final TimerTask retryTimerTask = new TimerTask() {
             @Override
             public void run(Timeout timeout) throws Exception {
                 if (attemptPromise.isDone()) {
@@ -360,10 +363,21 @@ public class CommandExecutorService implements CommandExecutor {
                 connection = connectionManager.connectionWriteOp(slot);
             }
             log.debug("getting connection for command {} via slot {} using {}", command, slot, connection.getRedisClient().getAddr());
-            connection.send(new CommandData<V, R>(attemptPromise, messageDecoder, codec, command, params));
+            ChannelFuture future = connection.send(new CommandData<V, R>(attemptPromise, messageDecoder, codec, command, params));
 
             ex.set(new RedisTimeoutException());
-            Timeout timeout = connectionManager.getTimer().newTimeout(timerTask, connectionManager.getConfig().getTimeout(), TimeUnit.MILLISECONDS);
+            final Timeout timeout = connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getTimeout(), TimeUnit.MILLISECONDS);
+
+            future.addListener(new ChannelFutureListener() {
+                @Override
+                public void operationComplete(ChannelFuture future) throws Exception {
+                    if (!future.isSuccess()) {
+                        timeout.cancel();
+                        ex.set(new RedisConnectionClosedException("channel: " + future.channel() + " closed"));
+                        connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getRetryInterval(), TimeUnit.MILLISECONDS);
+                    }
+                }
+            });
 
             if (readOnlyMode) {
                 attemptPromise.addListener(connectionManager.createReleaseReadListener(slot, connection, timeout));
@@ -372,7 +386,7 @@ public class CommandExecutorService implements CommandExecutor {
             }
         } catch (RedisConnectionException e) {
             ex.set(e);
-            connectionManager.getTimer().newTimeout(timerTask, connectionManager.getConfig().getRetryInterval(), TimeUnit.MILLISECONDS);
+            connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getRetryInterval(), TimeUnit.MILLISECONDS);
         }
         attemptPromise.addListener(new FutureListener<R>() {
             @Override
@@ -384,6 +398,7 @@ public class CommandExecutorService implements CommandExecutor {
 
                 if (future.cause() instanceof RedisMovedException) {
                     RedisMovedException ex = (RedisMovedException)future.cause();
+                    connectionManager.getTimer().newTimeout(retryTimerTask, connectionManager.getConfig().getRetryInterval(), TimeUnit.MILLISECONDS);
                     async(readOnlyMode, ex.getSlot(), messageDecoder, codec, command, params, mainPromise, attempt);
                     return;
                 }

src/main/java/org/redisson/SingleServerConfig.java

@@ -16,7 +16,6 @@
 package org.redisson;
 
 import java.net.URI;
-import java.net.URISyntaxException;
 
 import org.redisson.misc.URIBuilder;
 

src/main/java/org/redisson/SlotCallback.java

@@ -1,3 +1,18 @@
+/**
+ * Copyright 2014 Nikita Koksharov, Nickolay Borbit
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.redisson;
 
 public interface SlotCallback<T, R> {

src/main/java/org/redisson/client/RedisClient.java

@@ -107,5 +107,10 @@ public class RedisClient {
         return channels.close();
     }
 
+    @Override
+    public String toString() {
+        return "RedisClient [addr=" + addr + "]";
+    }
+
 }
 

src/main/java/org/redisson/client/RedisConnection.java

@@ -91,7 +91,7 @@ public class RedisConnection implements RedisCommands {
 
     public <T, R> Future<R> async(Codec encoder, RedisCommand<T> command, Object ... params) {
         Promise<R> promise = redisClient.getBootstrap().group().next().<R>newPromise();
-        channel.writeAndFlush(new CommandData<T, R>(promise, encoder, command, params));
+        send(new CommandData<T, R>(promise, encoder, command, params));
         return promise;
     }
 
@@ -113,4 +113,9 @@ public class RedisConnection implements RedisCommands {
         return channel.close();
     }
 
+    @Override
+    public String toString() {
+        return getClass().getSimpleName() + " [redisClient=" + redisClient + ", channel=" + channel + "]";
+    }
+
 }

src/main/java/org/redisson/client/RedisConnectionClosedException.java

@@ -0,0 +1,30 @@
+/**
+ * Copyright 2014 Nikita Koksharov, Nickolay Borbit
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.redisson.client;
+
+public class RedisConnectionClosedException extends RedisException {
+
+    private static final long serialVersionUID = -4756928186967834601L;
+
+    public RedisConnectionClosedException(String msg) {
+        super(msg);
+    }
+
+    public RedisConnectionClosedException(String msg, Throwable e) {
+        super(msg, e);
+    }
+
+}

src/main/java/org/redisson/client/handler/CommandsQueue.java

@@ -20,6 +20,7 @@ import java.util.Queue;
 
 import org.redisson.client.protocol.CommandData;
 import org.redisson.client.protocol.QueueCommand;
+import org.redisson.client.protocol.QueueCommandHolder;
 
 import io.netty.channel.ChannelDuplexHandler;
 import io.netty.channel.ChannelHandlerContext;
@@ -39,7 +40,7 @@ public class CommandsQueue extends ChannelDuplexHandler {
 
     public static final AttributeKey<QueueCommand> REPLAY = AttributeKey.valueOf("promise");
 
-    private final Queue<QueueCommand> queue = PlatformDependent.newMpscQueue();
+    private final Queue<QueueCommandHolder> queue = PlatformDependent.newMpscQueue();
 
     @Override
     public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
@@ -55,10 +56,10 @@ public class CommandsQueue extends ChannelDuplexHandler {
     public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
         if (msg instanceof QueueCommand) {
             QueueCommand data = (QueueCommand) msg;
-            if (data.getSended().get()) {
+            if (queue.peek() != null && queue.peek().getCommand() == data) {
                 super.write(ctx, msg, promise);
             } else {
-                queue.add(data);
+                queue.add(new QueueCommandHolder(data, promise));
                 sendData(ctx);
             }
         } else {
@@ -67,8 +68,9 @@ public class CommandsQueue extends ChannelDuplexHandler {
     }
 
     private void sendData(ChannelHandlerContext ctx) throws Exception {
-        QueueCommand data = queue.peek();
-        if (data != null && data.getSended().compareAndSet(false, true)) {
+        QueueCommandHolder command = queue.peek();
+        if (command != null && command.getSended().compareAndSet(false, true)) {
+            QueueCommand data = command.getCommand();
             List<CommandData<Object, Object>> pubSubOps = data.getPubSubOperations();
             if (!pubSubOps.isEmpty()) {
                 for (CommandData<Object, Object> cd : pubSubOps) {
@@ -79,7 +81,7 @@ public class CommandsQueue extends ChannelDuplexHandler {
             } else {
                 ctx.channel().attr(REPLAY).set(data);
             }
-            ctx.channel().writeAndFlush(data);
+            ctx.channel().writeAndFlush(data, command.getChannelPromise());
         }
     }
 

src/main/java/org/redisson/client/protocol/CommandData.java

@@ -30,7 +30,6 @@ public class CommandData<T, R> implements QueueCommand {
     final RedisCommand<T> command;
     final Object[] params;
     final Codec codec;
-    final AtomicBoolean sended = new AtomicBoolean();
     final MultiDecoder<Object> messageDecoder;
 
     public CommandData(Promise<R> promise, Codec codec, RedisCommand<T> command, Object[] params) {
@@ -61,10 +60,6 @@ public class CommandData<T, R> implements QueueCommand {
         return promise;
     }
 
-    public AtomicBoolean getSended() {
-        return sended;
-    }
-
     public Codec getCodec() {
         return codec;
     }
@@ -72,8 +67,7 @@ public class CommandData<T, R> implements QueueCommand {
     @Override
     public String toString() {
         return "CommandData [promise=" + promise + ", command=" + command + ", params="
-                + Arrays.toString(params) + ", codec=" + codec + ", sended=" + sended + ", messageDecoder="
-                + messageDecoder + "]";
+                + Arrays.toString(params) + ", codec=" + codec + "]";
     }
 
     @Override

src/main/java/org/redisson/client/protocol/CommandsData.java

@@ -26,7 +26,6 @@ public class CommandsData implements QueueCommand {
 
     private final List<CommandData<?, ?>> commands;
     private final Promise<Void> promise;
-    private final AtomicBoolean sended = new AtomicBoolean();
 
     public CommandsData(Promise<Void> promise, List<CommandData<?, ?>> commands) {
         super();
@@ -42,10 +41,6 @@ public class CommandsData implements QueueCommand {
         return commands;
     }
 
-    public AtomicBoolean getSended() {
-        return sended;
-    }
-
     @Override
     public List<CommandData<Object, Object>> getPubSubOperations() {
         List<CommandData<Object, Object>> result = new ArrayList<CommandData<Object, Object>>();

src/main/java/org/redisson/client/protocol/QueueCommand.java

@@ -16,12 +16,9 @@
 package org.redisson.client.protocol;
 
 import java.util.List;
-import java.util.concurrent.atomic.AtomicBoolean;
 
 public interface QueueCommand {
 
     List<CommandData<Object, Object>> getPubSubOperations();
 
-    AtomicBoolean getSended();
-
 }

src/main/java/org/redisson/client/protocol/QueueCommandHolder.java

@@ -0,0 +1,46 @@
+/**
+ * Copyright 2014 Nikita Koksharov, Nickolay Borbit
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.redisson.client.protocol;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import io.netty.channel.ChannelPromise;
+
+public class QueueCommandHolder {
+
+    final AtomicBoolean sended = new AtomicBoolean();
+    final ChannelPromise channelPromise;
+    final QueueCommand command;
+
+    public QueueCommandHolder(QueueCommand command, ChannelPromise channelPromise) {
+        super();
+        this.command = command;
+        this.channelPromise = channelPromise;
+    }
+
+    public QueueCommand getCommand() {
+        return command;
+    }
+
+    public ChannelPromise getChannelPromise() {
+        return channelPromise;
+    }
+
+    public AtomicBoolean getSended() {
+        return sended;
+    }
+
+}

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

@@ -189,6 +189,7 @@ abstract class BaseLoadBalancer implements LoadBalancer {
                     if (config.getClientName() != null) {
                         conn.sync(RedisCommands.CLIENT_SETNAME, config.getClientName());
                     }
+                    log.debug("new connection created: {}", conn);
 
                     return conn;
                 } catch (RedisConnectionException e) {

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

@@ -134,6 +134,8 @@ public class MasterSlaveEntry {
             if (config.getClientName() != null) {
                 conn.sync(RedisCommands.CLIENT_SETNAME, config.getClientName());
             }
+            log.debug("new connection created: {}", conn);
+
             return conn;
         } catch (RedisConnectionException e) {
             masterEntry.getConnectionsSemaphore().release();