云消息队列 MQ离线的相关内容

RocketMQ 5.0学习资料

7 课时 |

50 人已学 |

加入学习

Apache RocketMQ：如何从互联网时代演进到云

1 课时 |

154 人已学 |

加入学习

带您快速了解阿里云消息队列RocketMQ 5.0版

5 课时 |

456 人已学 |

加入学习

[帮助文档] 使用MQTT的设备查询功能排查设备离线问题

当设备的状态出现异常时，您可以使用设备查询功能查询设备的连接历史，快速排查设备离线问题，定位异常原因。

你的RocketMQ消费者组（Consumer Group）在查看时显示为离线，这可能是由于消费者组的状态没有被正确更新

根据你的描述，你的RocketMQ消费者组（Consumer Group）在查看时显示为离线，这可能是由于消费者组的状态没有被正确更新。以下是一些可能的解决方案：检查消费者组的状态：你可以通过RocketMQ的管理控制台或者API来检查消费者组的状态。如果状态显示为"Not Online"&amp...

RocketMQ用gRPC客户端的时候，查看consumerGroup的时候是离线的？

RocketMQ用gRPC客户端的时候，能正常生产和消费消息，但是查看consumerGroup的时候是离线的？报错信息是：CODE:206 DESC:the consumer group[xxx] not online

使用专业版MQTT连接设备，设备显示能连上，但是MQTT后台显示离线，这是什么问题呢？

使用专业版MQTT连接设备，设备显示能连上，但是MQTT后台显示离线，这是什么问题呢？我们使用基础版是没问题的额，现在切换到专业版。我们从基础版切换过来的，只改连接，其它都没改动。怎么说？我们是新买一个专业版实例，然后设备使用新的专业版实例链接

MQTT这个离线消息在客户端连接成功之后,阿里云云端服务器会重复推送消息吗?

阿里云的MQTT微消息队列的云端给客户端的离线消息是缓存多久呢？

共有26条

< 1 2 3 >

跳转至： GO

更新时间 2024-04-12 10:55:13

本页面内关键词为智能算法引擎基于机器学习所生成，如有任何问题，可在页面下方点击"联系我们"与我们沟通。

产品推荐

{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":4,"count":4}]},"card":[{"des":"阿里巴巴双11官方指定消息中间件，经过阿里巴巴交易核心链路反复打磨与历年双十一购物狂欢节的严苛考验，是一个真正具备低延迟、高并发、高可用、高可靠，可支撑万亿级数据洪峰的分布式消息中间件。","link1":"https://common-buy.aliyun.com/?commodityCode=onsbag&request=%7B%22pack_type%22:%22topic%22,%22region%22:%22ons-pack-china%22,%22flowout_topic%22:%22150%22,%22pack%22:%22FPT_onsbag_deadlineAcc_1544755088%22,%22ord_time%22:%226:Month%22%7D","link":"https://www.aliyun.com/product/rocketmq","icon":"https://img.alicdn.com/tfs/TB1DThKRXXXXXa.XpXXXXXXXXXX-200-200.png","btn2":"消息产品总览","tip":"消息队列RabbitMQ，推出7种多语言客户端<a href=\"https://www.aliyun.com/product/amqp\" target=\"_blank\">了解详情</a>！","btn1":"超值资源包","link2":"https://www.aliyun.com/product/ons","title":"消息队列 RocketMQ"}],"search":[{"txt":"消息队列 RocketMQ-金融等业务消息领域","link":"https://common-buy.aliyun.com/?commodityCode=onsbag&request=%7B%22pack_type%22:%22topic%22,%22region%22:%22ons-pack-china%22,%22flowout_topic%22:%22150%22,%22pack%22:%22FPT_onsbag_deadlineAcc_1544755088%22,%22ord_time%22:%226:Month%22%7D"},{"txt":"消息队列 MQTT-支持IOT与物联网等领域","link":"https://common-buy.aliyun.com/?commodityCode=onsMqtt&request=%7B%22version%22:%22normal%22,%22region%22:%22mq-internet-access%22,%22max_connection%22:%22100%22,%22max_tps%22:%22100%22,%22max_sub%22:%221000%22,%22order_num%22:1,%22ord_time%22:%22%5B3,%5C%22Month%5C%22%5D%22%7D"},{"txt":"消息队列 RabbitMQ-全面兼容RabbitMQ开源客户端","link":"https://common-buy.aliyun.com/?commodityCode=onsproxy_bag&request=%7B%22pack_type%22:%22queue%22,%22region%22:%22ons-pack-china%22,%22flowout_queue%22:%22150%22,%22pack%22:%22FPT_onsproxy_bag_deadlineAcc_1547457704%22,%22ord_time%22:%223:Month%22%7D"},{"txt":"消息队列Kafka-大数据通道","link":"https://common-buy.aliyun.com/?commodityCode=alikafka_post&request=%7B%22region%22:%22cn-hangzhou%22,%22vpc_deploy%22:%22true%22,%22IO_max%22:%2220%22,%22disk_type%22:%220%22,%22disk_size%22:900,%22msg_retain%22:72,%22order_num%22:1%7D"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","title":"消息队列 MQ","des":"阿里云消息队列脱胎于阿里内部核心电商交易系统，历经多次双十一的流量洪峰。发展至今，阿里云消息队列服务了社区和云上数以万计的企业客户，真正成为国内应用广泛的消息产品。","btn1":"产品详情页","link1":"https://www.aliyun.com/product/ons?spm=5176.21213303.J_6704733920.83.535153c9C7z9pW&scm=20140722.M_1421433.P_4939.ID_ons-OR_rec-V_1-MO_554-MID_1421433-CID_1411-ST_4238","btn2":"","link2":"","btn3":"","link3":"","infoGroup":[{"infoName":"优惠活动","infoContent":{"firstContentName":"RabbitMQ 0元试用","firstContentLink":"https://www.aliyun.com/product/amqp","lastContentName":"","lastContentLink":""}},{"infoName":"优惠活动","infoContent":{"firstContentName":"MNS资源包0.9元/月","firstContentLink":"https://www.aliyun.com/product/mns?spm=5176.19720258.J_3207526240.53.7b8176f4Fm5ext"}},{"infoName":"优惠活动","infoContent":{"firstContentLink":"https://www.aliyun.com/product/mq4iot?spm=5176.22772544.J_3207526240.52.757c2ea9UXGJEa","firstContentName":" MQTT 基础版8.8元/月"}}],"ifIcon":"img","iconImg":"https://img.alicdn.com/imgextra/i4/O1CN013mOrtS1ZbbKa0FoIX_!!6000000003213-0-tps-800-800.jpg","contentLink":"https://www.aliyun.com/product/ons?spm=5176.21213303.J_6704733920.83.535153c9C7z9pW&scm=20140722.M_1421433.P_4939.ID_ons-OR_rec-V_1-MO_554-MID_1421433-CID_1411-ST_4238"}],"visual":{"icon":"ons","topbg":"https://img.alicdn.com/tfs/TB14iILhgDqK1RjSZSyXXaxEVXa-286-101.jpg","textColor":"light"}}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":4,"count":4}]},"card":[{"des":"阿里巴巴双11官方指定消息中间件，经过阿里巴巴交易核心链路反复打磨与历年双十一购物狂欢节的严苛考验，是一个真正具备低延迟、高并发、高可用、高可靠，可支撑万亿级数据洪峰的分布式消息中间件。","link1":"https://common-buy.aliyun.com/?commodityCode=onsbag&request=%7B%22pack_type%22:%22topic%22,%22region%22:%22ons-pack-china%22,%22flowout_topic%22:%22150%22,%22pack%22:%22FPT_onsbag_deadlineAcc_1544755088%22,%22ord_time%22:%226:Month%22%7D","link":"https://www.aliyun.com/product/rocketmq","icon":"https://img.alicdn.com/tfs/TB1DThKRXXXXXa.XpXXXXXXXXXX-200-200.png","btn2":"消息产品总览","tip":"消息队列RabbitMQ，推出7种多语言客户端<a href=\"https://www.aliyun.com/product/amqp\" target=\"_blank\">了解详情</a>！","btn1":"超值资源包","link2":"https://www.aliyun.com/product/ons","title":"消息队列 RocketMQ"}],"search":[{"txt":"消息队列 RocketMQ-金融等业务消息领域","link":"https://common-buy.aliyun.com/?commodityCode=onsbag&request=%7B%22pack_type%22:%22topic%22,%22region%22:%22ons-pack-china%22,%22flowout_topic%22:%22150%22,%22pack%22:%22FPT_onsbag_deadlineAcc_1544755088%22,%22ord_time%22:%226:Month%22%7D"},{"txt":"消息队列 MQTT-支持IOT与物联网等领域","link":"https://common-buy.aliyun.com/?commodityCode=onsMqtt&request=%7B%22version%22:%22normal%22,%22region%22:%22mq-internet-access%22,%22max_connection%22:%22100%22,%22max_tps%22:%22100%22,%22max_sub%22:%221000%22,%22order_num%22:1,%22ord_time%22:%22%5B3,%5C%22Month%5C%22%5D%22%7D"},{"txt":"消息队列 RabbitMQ-全面兼容RabbitMQ开源客户端","link":"https://common-buy.aliyun.com/?commodityCode=onsproxy_bag&request=%7B%22pack_type%22:%22queue%22,%22region%22:%22ons-pack-china%22,%22flowout_queue%22:%22150%22,%22pack%22:%22FPT_onsproxy_bag_deadlineAcc_1547457704%22,%22ord_time%22:%223:Month%22%7D"},{"txt":"消息队列Kafka-大数据通道","link":"https://common-buy.aliyun.com/?commodityCode=alikafka_post&request=%7B%22region%22:%22cn-hangzhou%22,%22vpc_deploy%22:%22true%22,%22IO_max%22:%2220%22,%22disk_type%22:%220%22,%22disk_size%22:900,%22msg_retain%22:72,%22order_num%22:1%7D"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","title":"消息队列 MQ","des":"阿里云消息队列脱胎于阿里内部核心电商交易系统，历经多次双十一的流量洪峰。发展至今，阿里云消息队列服务了社区和云上数以万计的企业客户，真正成为国内应用广泛的消息产品。","btn1":"产品详情页","link1":"https://www.aliyun.com/product/ons?spm=5176.21213303.J_6704733920.83.535153c9C7z9pW&scm=20140722.M_1421433.P_4939.ID_ons-OR_rec-V_1-MO_554-MID_1421433-CID_1411-ST_4238","btn2":"","link2":"","btn3":"","link3":"","infoGroup":[{"infoName":"优惠活动","infoContent":{"firstContentName":"RabbitMQ 0元试用","firstContentLink":"https://www.aliyun.com/product/amqp","lastContentName":"","lastContentLink":""}},{"infoName":"优惠活动","infoContent":{"firstContentName":"MNS资源包0.9元/月","firstContentLink":"https://www.aliyun.com/product/mns?spm=5176.19720258.J_3207526240.53.7b8176f4Fm5ext"}},{"infoName":"优惠活动","infoContent":{"firstContentLink":"https://www.aliyun.com/product/mq4iot?spm=5176.22772544.J_3207526240.52.757c2ea9UXGJEa","firstContentName":" MQTT 基础版8.8元/月"}}],"ifIcon":"img","iconImg":"https://img.alicdn.com/imgextra/i4/O1CN013mOrtS1ZbbKa0FoIX_!!6000000003213-0-tps-800-800.jpg","contentLink":"https://www.aliyun.com/product/ons?spm=5176.21213303.J_6704733920.83.535153c9C7z9pW&scm=20140722.M_1421433.P_4939.ID_ons-OR_rec-V_1-MO_554-MID_1421433-CID_1411-ST_4238"}],"visual":{"icon":"ons","topbg":"https://img.alicdn.com/tfs/TB14iILhgDqK1RjSZSyXXaxEVXa-286-101.jpg","textColor":"light"}}}