doc-exports/docs/rds/umn/rds_08_0037.html

Function Overview

Description

DBA Assistant provides visualized database O&M and intelligent diagnosis for developers and database administrators (DBAs), making database O&M easy and efficient. By analyzing alarms, resources, health data, performance metrics, and storage usage, it helps users quickly locate faults and keep track of instance status.

Scenarios

• Setting a slow session threshold can help you quickly identify abnormal sessions and kill the sessions when an exception occurs in your instance, so that your instance can recover quickly and ensure database availability.
• If your DB instance is unstable due to a large number of concurrent SQL requests from new services, you can set SQL throttling rules for SQL statements to limit concurrent SQL statements and ensure instance stability.
• If your instance storage is full, you can learn about the storage usage and disk space distribution on the Storage Analysis page. You can enable storage autoscaling. When the available storage of your instance drops to the threshold, autoscaling is triggered. For details, see Storage Autoscaling.
• You can configure auto flow control to limit active connections in high burst traffic or abnormal read/write scenarios to ensure the availability of core workloads.

Functions

Table 1 lists the functions supported by DBA Assistant.

Table 1 Function description

Function	Description	Reference
Sessions	It displays session statistics. You can quickly filter slow sessions or active sessions by user, host IP address, or database name. Kill Session and SQL Throttling can be used for urgent instance recovery to ensure database availability.	Managing Real-Time Sessions
Performance	It displays key metrics of your instance and provides metric comparison between different days. You can keep track of metric changes and detect exceptions in a timely manner.	Viewing Performance Metrics of a DB Instance
Storage Analysis	Storage occupied by data and logs and historical changes of storage usage are important for database performance. DBA Assistant shows the storage summary and storage space usages of your instance. It estimates the available days of your storage based on historical data and intelligent algorithms, helping you scale up storage before it runs out. Top 50 Databases, and Top 50 Tables are also available on this page.	Managing Storage Capacity
Locks & Transactions	It analyzes metadata locks and InnoDB locks. You can manage blocked transactions using metadata lock views and InnoDB lock topologies to reduce lock conflicts.	Managing Locks & Transactions
Slow Query Log	It displays slow queries within a specified time period. You can sort top slow queries by user or client IP address, view slow query statistics, and sort them by specific dimensions to identify the sources of slow SQL queries.	Viewing Slow Query Logs of a DB Instance
SQL Explorer	After Collect All SQL Statements is enabled, you can gain a comprehensive insight into SQL statements on the SQL Explorer page. Top SQL helps you locate exceptions.	Viewing Top SQL Statements of a DB Instance Creating a SQL Insights Task
SQL Throttling	SQL Throttling restricts the execution of SQL statements based on specified rules when there are SQL statements that cannot be optimized timely or a resource (for example, vCPU) bottleneck occurs.	Creating a SQL Throttling Rule
Daily Reports	The Daily Reports page provides overall information about your instance status of the previous day, including slow SQL analysis, all SQL analysis, and performance & storage analysis. You can download and subscribe to analysis reports. A daily diagnosis is recommended.	Daily Reports

Parent topic: Problem Diagnosis and SQL Analysis