AliwareMQ for MQTT upgrade notice in Jan 2023

[Upgrade notice] [AliwareMQ for MQTT upgrade notice in Jan 2023]

Upgrade windows, regions, and instance types that may be affected:
Jan 05, 2023 22:00 Beijing time - Jan 06, 2023 07:00 Beijing time [Hangzhou, Chengdu, Zhangjiakou]
Jan 10, 2023 22:00 Beijing time - Jan 11, 2023 07:00 Beijing time [Hangzhou, Beijing, Shanghai, Shenzhen, Chengdu, Zhangjiakou, Qingdao, Hohhot, Public]
Jan 12, 2023 22:00 Beijing time - Jan 13, 2023 07:00 Beijing time [Hangzhou, Beijing, Shanghai, Shenzhen, Chengdu, Zhangjiakou, Qingdao, Hohhot, Public, Singapore, Hong Kong]
Jan 17, 2023 22:00 Beijing time - Jan 18, 2023 07:00 Beijing time [Tokyo, Sydney, Kuala Lumpur, Jakarta, Manila, Mumbai, Frankfurt, Silicon Valley, Virginia, Dubai, Landon]
Jan 19, 2023 22:00 Beijing time - Jan 20, 2023 07:00 Beijing time [Hangzhou, Beijing, Shanghai, Shenzhen, Chengdu, Zhangjiakou, Qingdao, Hohhot, Public, Singapore, Hong Kong]


Upgrade Impact:
During the upgrade, the MQTT console and each service node in the cluster may experience a second-level flash (the flash time is positively related to the cluster scale). The client application needs to set automatic reconnection to avoid affecting the business.
During the upgrade period, there may be a small number of failures in message sending, and the application should implement a retry mechanism for disconnection failures; at the same time, there may be message delays. For administrative operations on the console, please avoid maintenance windows.
Sorry for the inconvenience caused to you, if you have any questions, please feel free to contact us through the ticket.
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