[improve] [log] Print source client addr when enabled haProxyProtocol…

…Enabled (apache#22686)

pulsar-broker/src/main/java/org/apache/pulsar/broker/service/Consumer.java

@@ -934,7 +934,7 @@ public KeySharedMeta getKeySharedMeta() {
     public String toString() {
         if (subscription != null && cnx != null) {
             return MoreObjects.toStringHelper(this).add("subscription", subscription).add("consumerId", consumerId)
-                    .add("consumerName", consumerName).add("address", this.cnx.clientAddress()).toString();
+                    .add("consumerName", consumerName).add("address", this.cnx.toString()).toString();
         } else {
             return MoreObjects.toStringHelper(this).add("consumerId", consumerId)
                     .add("consumerName", consumerName).toString();

pulsar-broker/src/main/java/org/apache/pulsar/broker/service/Producer.java

@@ -666,7 +666,7 @@ public Map<String, String> getMetadata() {
 
     @Override
     public String toString() {
-        return MoreObjects.toStringHelper(this).add("topic", topic).add("client", cnx.clientAddress())
+        return MoreObjects.toStringHelper(this).add("topic", topic).add("client", cnx.toString())
                 .add("producerName", producerName).add("producerId", producerId).toString();
     }
 

pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ServerCnx.java

@@ -1201,7 +1201,7 @@ protected void handleSubscribe(final CommandSubscribe subscribe) {
                             remoteAddress, getPrincipal());
                 }
 
-                log.info("[{}] Subscribing on topic {} / {}. consumerId: {}", this.ctx().channel().toString(),
+                log.info("[{}] Subscribing on topic {} / {}. consumerId: {}", this.toString(),
                         topicName, subscriptionName, consumerId);
                 try {
                     Metadata.validateMetadata(metadata,
@@ -1921,7 +1921,7 @@ protected void handleAck(CommandAck ack) {
             if (log.isDebugEnabled()) {
                 log.debug("Consumer future is not complete(not complete or error), but received command ack. so discard"
                                 + " this command. consumerId: {}, cnx: {}, messageIdCount: {}", ack.getConsumerId(),
-                        this.ctx().channel().toString(), ack.getMessageIdsCount());
+                        this.toString(), ack.getMessageIdsCount());
             }
         }
     }
@@ -2267,7 +2267,7 @@ public void readEntryFailed(ManagedLedgerException exception, Object ctx) {
                 @Override
                 public String toString() {
                     return String.format("ServerCnx [%s] get largest batch index when possible",
-                            ServerCnx.this.ctx.channel());
+                            ServerCnx.this.toString());
                 }
             }, null);
 
@@ -3301,7 +3301,7 @@ private void disableTcpNoDelayIfNeeded(String topic, String producerName) {
                 }
             } catch (Throwable t) {
                 log.warn("[{}] [{}] Failed to remove TCP no-delay property on client cnx {}", topic, producerName,
-                        ctx.channel());
+                        this.toString());
             }
         }
     }
@@ -3364,6 +3364,31 @@ public SocketAddress getRemoteAddress() {
         return remoteAddress;
     }
 
+    /**
+     * Demo: [id: 0x2561bcd1, L:/10.0.136.103:6650 ! R:/240.240.0.5:58038] [SR:/240.240.0.5:58038].
+     * L: local Address.
+     * R: remote address.
+     * SR: source remote address. It is the source address when enabled "haProxyProtocolEnabled".
+     */
+    @Override
+    public String toString() {
+        ChannelHandlerContext ctx = ctx();
+        // ctx.channel(): 96.
+        // clientSourceAddress: 5 + 46(ipv6).
+        // state: 19.
+        // Len = 166.
+        StringBuilder buf = new StringBuilder(166);
+        if (ctx == null) {
+            buf.append("[ctx: null]");
+        } else {
+            buf.append(ctx.channel().toString());
+        }
+        String clientSourceAddr = clientSourceAddress();
+        buf.append(" [SR:").append(clientSourceAddr == null ? "-" : clientSourceAddr)
+                .append(", state:").append(state).append("]");
+        return buf.toString();
+    }
+
     @Override
     public BrokerService getBrokerService() {
         return service;
@@ -3510,7 +3535,7 @@ public CompletableFuture<Optional<Boolean>> checkConnectionLiveness() {
                     ctx.executor().schedule(() -> {
                         if (finalConnectionCheckInProgress == connectionCheckInProgress
                                 && !finalConnectionCheckInProgress.isDone()) {
-                            log.warn("[{}] Connection check timed out. Closing connection.", remoteAddress);
+                            log.warn("[{}] Connection check timed out. Closing connection.", this.toString());
                             ctx.close();
                         }
                     }, connectionLivenessCheckTimeoutMillis, TimeUnit.MILLISECONDS);

pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ServerCnxThrottleTracker.java

@@ -87,7 +87,7 @@ public void decrementThrottleCount() {
     private void changeAutoRead(boolean autoRead) {
         if (isChannelActive()) {
             if (log.isDebugEnabled()) {
-                log.debug("[{}] Setting auto read to {}", serverCnx.ctx().channel(), autoRead);
+                log.debug("[{}] Setting auto read to {}", serverCnx.toString(), autoRead);
             }
             // change the auto read flag on the channel
             serverCnx.ctx().channel().config().setAutoRead(autoRead);

pulsar-broker/src/main/java/org/apache/pulsar/broker/service/TopicListService.java

@@ -131,7 +131,7 @@ public void handleWatchTopicList(NamespaceName namespaceName, long watcherId, lo
             } else {
                 msg += "Pattern longer than maximum: " + maxSubscriptionPatternLength;
             }
-            log.warn("[{}] {} on namespace {}", connection.getRemoteAddress(), msg, namespaceName);
+            log.warn("[{}] {} on namespace {}", connection.toString(), msg, namespaceName);
             connection.getCommandSender().sendErrorResponse(requestId, ServerError.NotAllowedError, msg);
             lookupSemaphore.release();
             return;
@@ -144,14 +144,14 @@ public void handleWatchTopicList(NamespaceName namespaceName, long watcherId, lo
                 TopicListWatcher watcher = existingWatcherFuture.getNow(null);
                 log.info("[{}] Watcher with the same id is already created:"
                                 + " watcherId={}, watcher={}",
-                        connection.getRemoteAddress(), watcherId, watcher);
+                        connection.toString(), watcherId, watcher);
                 watcherFuture = existingWatcherFuture;
             } else {
                 // There was an early request to create a watcher with the same watcherId. This can happen when
                 // client timeout is lower the broker timeouts. We need to wait until the previous watcher
                 // creation request either completes or fails.
                 log.warn("[{}] Watcher with id is already present on the connection,"
-                        + " consumerId={}", connection.getRemoteAddress(), watcherId);
+                        + " consumerId={}", connection.toString(), watcherId);
                 ServerError error;
                 if (!existingWatcherFuture.isDone()) {
                     error = ServerError.ServiceNotReady;
@@ -179,14 +179,14 @@ public void handleWatchTopicList(NamespaceName namespaceName, long watcherId, lo
                     if (log.isDebugEnabled()) {
                         log.debug(
                                 "[{}] Received WatchTopicList for namespace [//{}] by {}",
-                                connection.getRemoteAddress(), namespaceName, requestId);
+                                connection.toString(), namespaceName, requestId);
                     }
                     connection.getCommandSender().sendWatchTopicListSuccess(requestId, watcherId, hash, topicList);
                     lookupSemaphore.release();
                 })
                 .exceptionally(ex -> {
                     log.warn("[{}] Error WatchTopicList for namespace [//{}] by {}",
-                            connection.getRemoteAddress(), namespaceName, requestId);
+                            connection.toString(), namespaceName, requestId);
                     connection.getCommandSender().sendErrorResponse(requestId,
                             BrokerServiceException.getClientErrorCode(
                                     new BrokerServiceException.ServerMetadataException(ex)), ex.getMessage());
@@ -213,7 +213,7 @@ public void initializeTopicsListWatcher(CompletableFuture<TopicListWatcher> watc
                     } else {
                         if (!watcherFuture.complete(watcher)) {
                             log.warn("[{}] Watcher future was already completed. Deregistering watcherId={}.",
-                                    connection.getRemoteAddress(), watcherId);
+                                    connection.toString(), watcherId);
                             topicResources.deregisterPersistentTopicListener(watcher);
                         }
                     }
@@ -232,7 +232,7 @@ public void deleteTopicListWatcher(Long watcherId) {
         CompletableFuture<TopicListWatcher> watcherFuture = watchers.get(watcherId);
         if (watcherFuture == null) {
             log.info("[{}] TopicListWatcher was not registered on the connection: {}",
-                    watcherId, connection.getRemoteAddress());
+                    watcherId, connection.toString());
             return;
         }
 
@@ -242,22 +242,22 @@ public void deleteTopicListWatcher(Long watcherId) {
             // watcher future as failed and we can tell the client the close operation was successful. When the actual
             // create operation will complete, the new watcher will be discarded.
             log.info("[{}] Closed watcher before its creation was completed. watcherId={}",
-                    connection.getRemoteAddress(), watcherId);
+                    connection.toString(), watcherId);
             watchers.remove(watcherId);
             return;
         }
 
         if (watcherFuture.isCompletedExceptionally()) {
             log.info("[{}] Closed watcher that already failed to be created. watcherId={}",
-                    connection.getRemoteAddress(), watcherId);
+                    connection.toString(), watcherId);
             watchers.remove(watcherId);
             return;
         }
 
         // Proceed with normal watcher close
         topicResources.deregisterPersistentTopicListener(watcherFuture.getNow(null));
         watchers.remove(watcherId);
-        log.info("[{}] Closed watcher, watcherId={}", connection.getRemoteAddress(), watcherId);
+        log.info("[{}] Closed watcher, watcherId={}", connection.toString(), watcherId);
     }
 
     /**

pulsar-common/src/main/java/org/apache/pulsar/common/protocol/PulsarDecoder.java

@@ -122,7 +122,7 @@ public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception
             cmd.parseFrom(buffer, cmdSize);
 
             if (log.isDebugEnabled()) {
-                log.debug("[{}] Received cmd {}", ctx.channel().remoteAddress(), cmd.getType());
+                log.debug("[{}] Received cmd {}", ctx.channel(), cmd.getType());
             }
             messageReceived();
 

pulsar-common/src/main/java/org/apache/pulsar/common/protocol/PulsarHandler.java

@@ -67,7 +67,7 @@ public void channelActive(ChannelHandlerContext ctx) throws Exception {
         this.ctx = ctx;
 
         if (log.isDebugEnabled()) {
-            log.debug("[{}] Scheduling keep-alive task every {} s", ctx.channel(), keepAliveIntervalSeconds);
+            log.debug("[{}] Scheduling keep-alive task every {} s", this.toString(), keepAliveIntervalSeconds);
         }
         if (keepAliveIntervalSeconds > 0) {
             this.keepAliveTask = ctx.executor()
@@ -85,13 +85,13 @@ public void channelInactive(ChannelHandlerContext ctx) throws Exception {
     protected final void handlePing(CommandPing ping) {
         // Immediately reply success to ping requests
         if (log.isDebugEnabled()) {
-            log.debug("[{}] Replying back to ping message", ctx.channel());
+            log.debug("[{}] Replying back to ping message", this.toString());
         }
         ctx.writeAndFlush(Commands.newPong())
                 .addListener(future -> {
                     if (!future.isSuccess()) {
                         log.warn("[{}] Forcing connection to close since cannot send a pong message.",
-                                ctx.channel(), future.cause());
+                                toString(), future.cause());
                         ctx.close();
                     }
                 });
@@ -107,24 +107,24 @@ private void handleKeepAliveTimeout() {
         }
 
         if (!isHandshakeCompleted()) {
-            log.warn("[{}] Pulsar Handshake was not completed within timeout, closing connection", ctx.channel());
+            log.warn("[{}] Pulsar Handshake was not completed within timeout, closing connection", this.toString());
             ctx.close();
         } else if (waitingForPingResponse && ctx.channel().config().isAutoRead()) {
             // We were waiting for a response and another keep-alive just completed.
             // If auto-read was disabled, it means we stopped reading from the connection, so we might receive the Ping
             // response later and thus not enforce the strict timeout here.
-            log.warn("[{}] Forcing connection to close after keep-alive timeout", ctx.channel());
+            log.warn("[{}] Forcing connection to close after keep-alive timeout", this.toString());
             ctx.close();
         } else if (getRemoteEndpointProtocolVersion() >= ProtocolVersion.v1.getValue()) {
             // Send keep alive probe to peer only if it supports the ping/pong commands, added in v1
             if (log.isDebugEnabled()) {
-                log.debug("[{}] Sending ping message", ctx.channel());
+                log.debug("[{}] Sending ping message", this.toString());
             }
             waitingForPingResponse = true;
             sendPing();
         } else {
             if (log.isDebugEnabled()) {
-                log.debug("[{}] Peer doesn't support keep-alive", ctx.channel());
+                log.debug("[{}] Peer doesn't support keep-alive", this.toString());
             }
         }
     }
@@ -134,7 +134,7 @@ protected ChannelFuture sendPing() {
                 .addListener(future -> {
                     if (!future.isSuccess()) {
                         log.warn("[{}] Forcing connection to close since cannot send a ping message.",
-                                ctx.channel(), future.cause());
+                                this.toString(), future.cause());
                         ctx.close();
                     }
                 });
@@ -152,5 +152,20 @@ public void cancelKeepAliveTask() {
      */
     protected abstract boolean isHandshakeCompleted();
 
+    /**
+     * Demo: [id: 0x2561bcd1, L:/10.0.136.103:6650 ! R:/240.240.0.5:58038].
+     * L: local Address.
+     * R: remote address.
+     */
+    @Override
+    public String toString() {
+        ChannelHandlerContext ctx = this.ctx;
+        if (ctx == null) {
+            return "[ctx: null]";
+        } else {
+            return ctx.channel().toString();
+        }
+    }
+
     private static final Logger log = LoggerFactory.getLogger(PulsarHandler.class);
 }