This topic describes the metrics for ApsaraDB POLARDB for PostgreSQL or ApsaraDB POLARDB for Oracle.
- Set the Namespace parameter to acs_polardb.
- Set the Period parameter to an integral multiple of 60s. The default value is 60s.
| Metric | Unit | Metric | Dimensions | Statistics |
|---|---|---|---|---|
| Active Connection | Count | active_connections | userId, clusterId, and instanceId | Average |
| BlockRead | Count | blks_read_delta | userId, clusterId, and instanceId | Value |
| Connection Usage | % | conn_usage | userId, clusterId, and instanceId | Average |
| CPU Usage | % | cpu_total | userId, clusterId, and instanceId | Average |
| DB Age | xids | db_age | userId, clusterId, and instanceId | Value |
| Memory Usage | % | mem_usage | userId, clusterId, and instanceId | Average |
| Data Size | Mbyte | pls_data_size | userId, clusterId, and instanceId | Value |
| IOPS | Frequency | pls_iops | userId, clusterId, and instanceId | Average |
| Read IOPS | Frequency | pls_iops_read | userId, clusterId, and instanceId | Average |
| Write IOPS | Frequency | pls_iops_write | userId, clusterId, and instanceId | Average |
| WAL Log Size | Mbyte | pls_pg_wal_dir_size | userId, clusterId, and instanceId | Value |
| IO Throughout | Mbyte/s | pls_throughput | userId, clusterId, and instanceId | Average |
| Read IO Throughput | Mbyte/s | pls_throughput_read | userId, clusterId, and instanceId | Average |
| Write IO Throughput | Mbyte/s | pls_throughput_write | userId, clusterId, and instanceId | Average |
| Swell Time | s | swell_time | userId, clusterId, and instanceId | Average |
| TPS | Frequency | tps | userId, clusterId, and instanceId | Average |