FCM规定的可靠性是多少? [英] What is FCM's stated reliability?

问题描述

我遇到了一些用户没有收到有关时间敏感信息的推送通知的问题.

I'm having issues with some users not receiving push notifications of time sensitive information.

问题可能出在我们的实施中，但我试图了解Firebase在可靠性方面的要求.

Its likely that the issue lies in our implementation but I'm trying to get an idea of what Firebase claims in terms of reliability.

推荐答案

FCM主要用于推送通知. Android的推送通知通常是应用程序的附加功能.

FCM is used primarily for push notifications. Push notifications for Android are commonly an additional feature for apps.

FCM在可行的情况下尽快发送消息 ，但是，由于某些因素，建议不要保留对时间敏感的信息/应用关键数据可能会或可能不会导致收到消息的延迟-在某些情况下/设备，根本不会收到消息(请参阅这篇文章).

FCM sends the message(s) as soon as feasible, however, it is not advised to hold time sensitive info/app critical data, since there are factors that may or may not contribute to the delay that a message is received -- in some cases/devices, the message is not received at all (see this post).

在FCM的辩护中，它是一项免费服务，被数百万个应用程序使用，一次可处理数百万条消息.因此，"尽快发送它"的行为确实很棒.

In FCM's defense, it is a free service, used by millions of apps, handling millions of messages at a time. So the behavior of "sending it as soon as feasible" is awesome as it is.

如果您需要发送的数据很关键，最好使用 Firebase Real-时间数据库.

If the data you need to send is critical, you might be better off to use Firebase Real-time Database.

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