The exception alarms page displays the information overview of exception alarms (exceptions detected by "24/7 Exception Diagnosis") generated by database instances connected to DBbrain under your account.

Note：

Currently, exception alarm is supported only for TencentDB for MySQL (excluding the Basic Edition).

Exception Alarm List

Log in to the DBbrain Console and select Exception Alarm on the left sidebar.
The exception alarm list displays the basic information of the database instance (instance name/ID, private IP, AZ), risk level, diagnosis items, duration, and operations. In the search bar, you can search by instance ID, instance name, private IP, diagnosis item, etc. You can also filter instances by region and time.

• "Risk levels" include warning, alarm, severe, and critical. You can filter, aggregate, and search for alarms by field. You can also click Details to view specific information about the exception and the optimization advice for the exception.
  
• There are over 30 "diagnosis items" for exception diagnosis, such as slow SQL, master-slave switch, deadlock, uncommitted transaction, and OOM. You can filter, aggregate, and search for items by field. You can also sort them by duration.
  

Detailed Description of Diagnosis Items

A diagnosis item is an item diagnosed intelligently, which can be divided into four categories: performance, availability, reliability, and maintainability. Each diagnosis item belongs to only one category.