Database Autonomy Service (DAS) provides the alerting feature. This feature allows you to customize alert rules. When an alert rule is triggered by a database instance, DAS automatically sends an alert notification. This topic describes how to configure and manage alert rules in the DAS console before you configure alerting.
Add alert rules
Manage alert rules
Comparison of alert metrics supported by different access modes
Note When you connect Alibaba Cloud database instances or self-managed databases to DAS,
the access mode falls into the category of centralized-mode access.
Metric | Number of alert occurrences |
---|---|
Database Disconnected | 1, 3, 5, 7, or 10 times consecutively |
Replication Interruption of MySQL Instance | 1, 3, 5, 7, or 10 times consecutively |
Metric | Threshold unit | Centralized-mode access | Host-mode access | Number of alert occurrences |
---|---|---|---|---|
Host CPU Utilization | % | Not supported | Supported | 1, 3, 5, 7, or 10 times consecutively |
Host LOAD_1min | None | Not supported | ||
Host Memory Usage | % | Not supported | ||
Sent Bandwidth Usage by Host Network | % | Not supported | ||
Received Bandwidth Usage by Host Network | % | Not supported | ||
Disk Usage of Host Root Partition | % | Not supported | ||
Active Sessions of MySQL Instance | N/A | Supported | ||
Connections of MySQL Instance | N/A | Supported | ||
Replication Delay of MySQL Instance | s | Supported | ||
Cache Hit Rate of MySQL Instance | % | Supported | ||
Slow SQL Statements of MySQL Instance per Hour | N/A | Supported | ||
MySQL Data Storage Space Usage | % | Supported | ||
MySQL Log Storage Space Usage | % | Supported | ||
Connected Redis Clients | N/A | Supported | ||
Cache Hit Ratio of Redis | % | Supported | ||
Memory Fragmentation Rate of Redis | % | Supported | ||
MongoDB Instance Connections | N/A | Supported | ||
MongoDB Instance Cache Usage | % | Supported | ||
Current Operations to Be Performed on MongoDB Instance | N/A | Supported | ||
Dirty Ratio in Cache of MongoDB Instance | % | Supported | ||
Slow SQL Statements of MongoDB Instance per Hour | N/A | Supported | ||
PostgreSQL IOPS Usage | % | Supported | ||
PostgreSQL iNode Usage | % | Supported | ||
PostgreSQL Space Usage | % | Supported | ||
PostgreSQL TPS | N/A | Supported | ||
PostgreSQL Connection Usage | % | Supported | ||
Average Number of Active Connections per CPU for PostgreSQL | N/A | Supported | ||
PostgreSQL Longest Bloat Duration | N/A | Supported | ||
PostgreSQL CPU Utilization | % | Supported | ||
PostgreSQL Memory Usage | % | Supported |