通知中心注册被删除
Notification hub registrations getting deleted
我们正在使用通知中心向 android 台设备发送通知。
虽然一切正常，但我意识到了一些事情。注册似乎在一段时间后被清除（其中一些）。
它们可能是无效注册，但看起来肯定是 Azure 在幕后做了一些事情来删除这些。
有什么建议吗，azure不时删除无效注册？还是我遗漏了什么。
正如Notification Hubs Registration Management提到的什么是设备注册：
It is important to note that registrations are transient. Similar to the PNS handles that they contain, registrations expire. You can set the time to live for a registration on the Notification Hub, up to a maximum of 90 days. This limit means that they must be periodically refreshed, and also that they should not be the only store for important information. This automatic expiration also simplifies cleanup when your mobile application is uninstalled.
此外，来自 Azure 通知中心的推送通知：常见问题。
Notification Hubs cleans the registrations as it receives PNS feedback about expired or invalid registrations.
我们正在使用通知中心向 android 台设备发送通知。
虽然一切正常，但我意识到了一些事情。注册似乎在一段时间后被清除（其中一些）。
它们可能是无效注册，但看起来肯定是 Azure 在幕后做了一些事情来删除这些。
有什么建议吗，azure不时删除无效注册？还是我遗漏了什么。
正如Notification Hubs Registration Management提到的什么是设备注册：
It is important to note that registrations are transient. Similar to the PNS handles that they contain, registrations expire. You can set the time to live for a registration on the Notification Hub, up to a maximum of 90 days. This limit means that they must be periodically refreshed, and also that they should not be the only store for important information. This automatic expiration also simplifies cleanup when your mobile application is uninstalled.
此外，来自 Azure 通知中心的推送通知：常见问题。
Notification Hubs cleans the registrations as it receives PNS feedback about expired or invalid registrations.