说明
- Write for the first time, do not know what is written, like to a praise, do not like to give me a message. --ants climb trees are not afraid of high, heart learning not afraid of old.
场景
- The message is a bridge between the platform and the user for the user and the platform. Especially the very heavy platform to see the message.
查询消息记录返回，响应时间问题？现在都流行消息个数展示,未读消息个数问题？A platform to change, small companies are busy, tired of products, exhausted the development ...- The above two seemingly simple problems, on specific occasions, will bring serious results to the platform, the following talk about two special occasions.
场合
- 1. Users to million, the amount of data to tens;
- 2. After the first condition has been met, the platform will come up with a few more promotional activities. Users at the same time, participate in the event will send messages to the user when the message (Platform for users to push messages, promotions, participate in activities, activities, such as incentives to use the message notification.
引发的问题
- When the data volume is too large , the query speed slows down, causing the database to become unbearable;
- When concurrency is high , you want to show users in real time. The database is much more unbearable. When the database is suspended. Platform clients have a network error, talk about what to do activities, etc.
怎么办？
引
1. Subsequent analysis and resolution of the above problems
2. If you have good suggestions , please leave me a message . Written here is to facilitate everyone to bring thinking, with thinking together to learn progress ...
