PolarDBConnections | mean_total_session | double | N/A | The number of current connections. |
mean_active_session | double | N/A | The number of active connections. |
mean_waiting_connection | double | N/A | The number of pending connections. |
mean_idle_connection | double | N/A | The number of idle connections. |
PolarDBRowDML | mean_tup_returned_delta | double | N/A | The number of rows returned per second in the full table scan result. |
mean_tup_fetched_delta | double | N/A | The number of rows returned per second in the index scan and secondary index result. |
mean_tup_inserted_delta | double | N/A | The number of rows inserted per second. |
mean_tup_updated_delta | double | N/A | The number of rows updated per second. |
mean_tup_deleted_delta | double | N/A | The number of rows deleted per second |
PolarDBTransaction | mean_active_transactions | double | N/A | The number of transactions in the active state. |
mean_waiting_transactions | double | N/A | The number of pending transactions. |
mean_idle_transactions | double | N/A | The number of idle transactions. |
mean_two_pc_transactions | double | N/A | The number of XA transactions. |
PolarDBQPSTPS | mean_tps | double | N/A | The number of transactions per second. |
mean_commits_delta | double | N/A | The number of transactions committed per second. |
mean_rollbacks_delta | double | N/A | The number of transactions rolled back per second. |
mean_deadlocks_delta | double | N/A | The number of deadlocks per second. |
PolarDBBuffer | mean_blks_read_delta | double | N/A | The number of block reads per second. |
mean_blks_hit_delta | double | N/A | The number of block hits per second. |
mean_hit_ratio | double | Percentage | The block hit ratio. |
mean_buffers_clean | double | N/A | The cumulative number of buffers written by the background writer during checkpoints. |
mean_buffers_backend | double | N/A | The cumulative number of buffers written by a backend. |
mean_buffers_backend_fsync | double | N/A | The cumulative number of backend fsync calls. |
mean_buffers_alloc | double | N/A | The cumulative number of allocated buffers. |
PolarDBVacuum | mean_db_age | double | xids | The difference between the current transaction ID and the earliest transaction ID that cannot be recycled. |
PolarDBTemp | mean_temp_files | double | N/A | The number of temporary files generated per second. |
mean_temp_bytes | double | Bytes | The amount of temporary file data generated per second. |
PolarDBCPU | cpu_ratio | double | Percentage | The CPU utilization. |
cpu_user_ratio | double | Percentage | The CPU utilization in the user state. |
cpu_sys_ratio | double | Percentage | The CPU utilization in the system state. |
PolarDBMemory | mem_ratio | double | Percentage | The memory usage. |
PolarDBDiskUsage | mean_ins_total_size | double | MB | The used PolarStore space of the instance. |
mean_data_size | double | MB | The used PolarStore space of user data. |
mean_wal_size | double | MB | The used PolarStore space of Write-Ahead Logging (WAL) logs. |
mean_tmp_size | double | MB | The used temporary space. |
mean_log_size | double | MB | The used space of local logs. |
PolarDBIOSTAT | mean_iops_r | double | N/A | The read IOPS. |
mean_iops_w | double | N/A | The write IOPS. |
mean_iops | double | N/A | The total IOPS. |
mean_io_throughput_r | double | MB | The read I/O throughput. |
mean_io_throughput_w | double | MB | The write I/O throughput. |
mean_io_throughput | double | MB | The total I/O throughput. |