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关于 RocketMQ ClientID 相同引发的消息堆积的问题
其中讲到了： 消息堆积 重复消费自不必说，你 ClientID 都相同了。本篇着重聊聊为什么会消息堆积。 文章中讲到，初始化 Consumer 时，会初始化 Rebalance 的策略。 入参 需要以下四个： ConsumerGroup 消费者组的名字 currentCID 当前消费者的 clientID mqAll 当前 ConsumerGroup 所消费的 Topic 下的所有的 MessageQueue cidAll 当前 ConsumerGroup 下所有消费者的 ClientID 实际上是将某个 Topic 下的所有 MessageQueue 分配给属于同一个消费者的所有消费者实例，粒度是 By 而我们开篇提到的 Consumer 的 ClientID 相同，会造成什么？ 当然是 index 的值相同，进而造成 mod、averageSize、startIndex、range 全部相同。
1.4K30编辑于 2022-08-17 - 来自专栏码匠的流水账
聊聊rocketmq5的PushConsumer
rocketmq push consumer starts successfully, clientId={}", clientId); } catch (Throwable t) { log.error("Exception raised while starting the rocketmq push consumer, clientId={}", clientId dropped, no longer receive message, mq={}, clientId={}", mq, clientId); return; log.error("[Bug] Failed to schedule message receiving request, mq={}, clientId={}", mq, clientId, t); messageInterceptor, ScheduledExecutorService scheduler) { this.clientId = clientId;
39010编辑于 2024-08-12 - 来自专栏码匠的流水账
聊聊rocketmq5的PushConsumer
rocketmq push consumer starts successfully, clientId={}", clientId); } catch (Throwable t) { log.error("Exception raised while starting the rocketmq push consumer, clientId={}", clientId, t); dropped, no longer receive message, mq={}, clientId={}", mq, clientId); return; } log.error("[Bug] Failed to schedule message receiving request, mq={}, clientId={}", mq, clientId, t); log.error("[Bug] Exception raised in consumption callback, clientId={}", clientId, t);
35310编辑于 2024-08-10 - 来自专栏余生大大
WebSocket开发（一对一聊天）功能
") String clientId){ if (! @OnOpen public void onOpen(Session session,@PathParam("clientId") String clientId){ if (! @OnOpen public void onOpen(Session session,@PathParam("clientId") String clientId){ if (! CollectionUtils.isEmpty(this.ToBeSentMap.get(clientId))){ this.ToBeSentMap.get(clientId). ") String clientId){ if (!
1.9K50编辑于 2022-11-02 - 来自专栏余生大大
WebSocket开发（客服对话）功能
区分角色需要在建立连接时就进行区分，所以在ServerEndpoint地址增加type类型 @ServerEndpoint(value = "/api/websocket/client/{type}/{clientId webSocketClientMap.containsKey(clientId)){ onlineUsers.addAndGet(1); } this.clientId = clientId; this.type = type; if(! ,this); infoSession = session; log.info("客户端:{}建立连接，角色：{}，当前用户在线人数:{}",clientId,type ); /** * 持久化 */ baseWebSocketService.saveCTOCMsg(this.clientId,webSocketClient.clientId
1.4K31编辑于 2022-11-02 - 来自专栏全栈程序员必看
Client ID认证「建议收藏」
Client ID 认证不依赖外部数据源，使用上足够简单轻量，使用该种认证方式时需要开启 emqx_auth_clientid插件，直接在DashBoard中开启即可， 2.哈希方法 Client ID 认证默认使用 sha256 进行密码哈希加密，可在 etc/plugins/emqx_auth_clientid.conf 中更改： # etc/plugins/emqx_auth_clientid.conf 1：添加认证数据API 定义： POST api/v4/auth_clientid{ “clientid”: “emqx_c”, “password”: “emqx_p”} ####添加 clientId和密码##### POST http://{{hostname}}:{{port}}/api/v4/auth_clientid HTTP/1.1 Content-Type #############获取指定ClientId详细信息######## GET http://{{hostname}}:{{port}}/api/v4/auth_clientid
1.5K10编辑于 2022-09-07 - 来自专栏Java实战博客
SSE 第二篇
); log.info("SSE onError：{}出现异常", clientId); } }); // >> 回调3 ("SSE onTimeout：{}超时了", clientId); }); sseCache.put(clientId, sseEmitter); log.info ("创建新的sse连接，当前用户：{}", clientId); try { sseEmitter.send(SseEmitter.event().id(clientId ).name("diyEventType").data("连接成功" + clientId)); } catch (IOException e) { log.error ("SSE: 给客户端发送消息异常，客户端ID:{}", clientId, e); throw new RuntimeException("给客户端发送消息异常！"
2K20编辑于 2023-03-28 C++ ASIO 实现异步套接字管理
) : m_socket(ios), m_clientId(clientId){}~CTcpConnection(){}int m_clientId;tcp ) = 0;virtual void ClientDisconnect(int clientId) = 0;virtual void ReceiveData(int clientId, const BYTE , const BYTE* data, size_t length);string GetRemoteAddress(int clientId);string GetRemotePort(int clientId , m_nextClient));// 重置下一个客户端连接m_nextClient = make_shared<CTcpConnection>(m_ioservice, m_clientId);m_clientId ){// 将登录客户端加入到容器中tcp_client_id.push_back(clientId);}// 客户端退出时触发virtual void ClientDisconnect(int clientId
1.1K20编辑于 2023-08-29- 来自专栏科控自动化
[C#] Blazor练习 依赖注入2
TimeOfConnection = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"), ClientId = e.ClientId, AllowSend = true, AllowReceive = true, }); _log.LogInformation($"Client connected: {e.ClientId}"); OnClientConnected? == e.ClientId); if (client == null) { _log.LogError == e.ClientId); var message = new MqttMessage {
68320编辑于 2022-12-01 C++ ASIO 实现异步套接字管理
) : m_socket(ios), m_clientId(clientId){} ~CTcpConnection(){} int m_clientId ) = 0; virtual void ClientDisconnect(int clientId) = 0; virtual void ReceiveData(int clientId, const , const BYTE* data, size_t length); string GetRemoteAddress(int clientId); string GetRemotePort(int tcp_client_id.push_back(clientId); } // 客户端退出时触发 virtual void ClientDisconnect(int clientId) { (), clientId); if (item !
89050编辑于 2023-10-11- 来自专栏余生大大
WebSocket开发（记录落地）功能
") String clientId){ if (! CollectionUtils.isEmpty(this.ToBeSentMap.get(clientId))){ this.ToBeSentMap.get(clientId). ; @OnOpen public void onOpen(Session session,@PathParam("clientId") String clientId){ this.clientId = clientId; } 这样可以直接在sendMessage方法中拿到所属的客户端id了 代码如下： private void sendMessage(Object CollectionUtils.isEmpty(this.ToBeSentMap.get(clientId))){ this.ToBeSentMap.get(clientId).
92380编辑于 2022-11-02 - 来自专栏码匠的流水账
聊聊PushConsumer与SimpleConsumer拉取消息的区别
consumer/ProcessQueueImpl.java private void receiveMessageImmediately(String attemptId) { final ClientId clientId = consumer.getClientId(); if (! ={}", mq, clientId); return; } try { final Endpoints endpoints = ={}", mq, clientId, t); onReceiveMessageException(t, attemptId); } }PushConsumer log.error("[Bug] Exception raised during message receiving, mq={}, clientId={}", mq, clientId, t);
34610编辑于 2024-08-11 - 来自专栏笔记2022
闪送接口对接之获取AccessToken【JAVA】
public String getAccessToken(HttpServletRequest request, HttpServletResponse response) { String clientId = appId; String code = request.getParameter("code"); String c = "clientId=" + clientId + "&code= ", clientId); map.put("timestamp", String.valueOf(timestamp)); map.put("data", data); String sign = getSignToken(map); String c = "clientId=" + clientId + "&sign=" + sign + "×tamp=" + timestamp " + clientId + "timestamp" + currentTimeMillis; } else { a = appSecrty + "clientId" + clientId +
1.3K20编辑于 2022-06-17 - 来自专栏技术博文
nested exception is java.lang.IllegalStateException: PathVariable annotation was empty on param 0.
当时声明明Feign接口方法时候，使用@PathVariable注解的接口方法： @GetMapping("/account/{clientId}") public User get(@PathVariable String clientId); path路径部分只有一个clientId变量，那么说在“was empty on param 0”，也就是说clientId值没有取到！ 解决: 将@PathVariable修改为@PathVariable(value="clientId")的写法，明确带有value="clientId"！ @GetMapping("/account/{clientId}") public User get(@PathVariable(value="clientId") String clientId);
89840编辑于 2022-10-31 - 来自专栏码匠的流水账
聊聊canal的ClientIdentity
filter; public ClientIdentity(){ } public ClientIdentity(String destination, short clientId ){ this.clientId = clientId; this.destination = destination; } public ClientIdentity (String destination, short clientId, String filter){ this.clientId = clientId; this.destination return StringUtils.isNotBlank(filter); } //...... } ClientIdentity定义了destination、clientId 方法则执行canalInstance.getMetaManager().listAllSubscribeInfo(destination) 小结 ClientIdentity定义了destination、clientId
59900发布于 2020-04-18 - 来自专栏johnhuster
org.apache.rocketmq.client.exception.MQClientException: No route info of this topic
new MQClientInstance(clientConfig.cloneClientConfig(), this.factoryIndexGenerator.getAndIncrement(), clientId , rpcHook); MQClientInstance prev = (MQClientInstance)this.factoryTable.putIfAbsent(clientId, = null) { instance = prev; log.warn("Returned Previous MQClientInstance for clientId :[{}]", clientId); } else { log.info("Created new MQClientInstance for clientId:[ 过早被创建，所以后续同一clientId不再创建MQClientInstance而使用最初创建的实例！
3.7K20编辑于 2022-03-29 - 来自专栏全栈程序员必看
连接kafka报错:1 partitions have leader brokers without a matching listener「建议收藏」
WARN [tag-service,,,] 1 --- [ntainer#4-0-C-1] org.apache.kafka.clients.NetworkClient : [Consumer clientId WARN [tag-service,,,] 1 --- [ntainer#2-0-C-1] org.apache.kafka.clients.NetworkClient : [Consumer clientId WARN [tag-service,,,] 1 --- [ntainer#0-0-C-1] org.apache.kafka.clients.NetworkClient : [Consumer clientId WARN [tag-service,,,] 1 --- [ntainer#7-0-C-1] org.apache.kafka.clients.NetworkClient : [Consumer clientId WARN [tag-service,,,] 1 --- [ntainer#4-0-C-1] org.apache.kafka.clients.NetworkClient : [Consumer clientId
2.6K30编辑于 2022-09-13 - 来自专栏码匠的流水账
聊聊PushConsumer与SimpleConsumer拉取消息的区别
/ProcessQueueImpl.java private void receiveMessageImmediately(String attemptId) { final ClientId clientId = consumer.getClientId(); if (! ={}", mq, clientId); return; } try { final Endpoints endpoints ={}, response={}", mq, clientId, response); } } for log.error("[Bug] Exception raised during message receiving, mq={}, clientId={}", mq, clientId, t);
34110编辑于 2024-08-12 - 来自专栏落叶飞翔的蜗牛
Springboot 集成OAuth2.0密码模式简单配置
"缓存clientId:{},{}", clientId, clientDetails); } } return clientDetails (clientId); if (clientDetails ! , clientDetails); log.info("缓存clientId:{},{}", clientId, clientDetails); } cacheAndGetClient(clientId); } @Override public void removeClientDetails(String clientId (String clientId) { Cache cache = cacheManager.getCache(CACHE_CLIENT_KEY); cache.evict(clientId
4.2K30发布于 2021-01-14 - 来自专栏开源技术小栈
「IM系列」WebSocket教程：响应格式规范与异常处理
msg, 'data' => $data], JSON_UNESCAPED_UNICODE); } 上一章代码优化 /** * @desc onMessage * @param string $clientId = JSON_ERROR_NONE) { Gateway::closeClient($clientId, json_encode([ 'code' => 500, ], JSON_UNESCAPED_UNICODE)); return false; } return Gateway::sendToClient($clientId = JSON_ERROR_NONE) { Gateway::closeClient($clientId, broadcast_json(400, '无效的json数据')); return false; } return Gateway::sendToClient($clientId, broadcast_json(400, '请求成功', $originMessage
76110编辑于 2023-12-04
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