WDRs

The following table describes the WDR content of the openGauss database.

Table 1 Content of the WDR

Metric	Description
Database Stat	Database performance statistics: transactions, read and write, row activities, write conflicts, and deadlocks Database-wide report, which can be viewed only in cluster mode.
Load Profile	Datebase performance statistics: CPU time, DB time, logical or physical read, I/O performance, login and logout, load strength, and load performance Database-wide report, which can be viewed only in cluster mode.
Instance Efficiency Percentages	Database-level or node-level cache hit ratio. Database/Node-wide report, which can be viewed in cluster or node mode.
Top 10 Events by Total Wait Time	Most time-consuming event. Node-wide report, which can be viewed in node mode.
Wait Classes by Total Wait Time	Category of the wait time that is most time-consuming. Node-wide report, which can be viewed in node mode.
Host CPU	CPU usage of the host. Node-wide report, which can be viewed in node mode.
IO Profile	I/O usage in the database or node dimension. Database/Node-wide report, which can be viewed in cluster or node mode.
Memory Statistics	Kernel memory usage. Node-wide report, which can be viewed in node mode.
Time Model	Time distribution information about the statements in a node. Node-wide report, which can be viewed in node mode.
SQL Statistics	SQL statement performance statistics: end-to-end time, row activities, cache hit, CPU consumption, and time consumption. Database/Node-wide report, which can be viewed in cluster or node mode.
Wait Events	Statistics on wait events at the node level. Node-wide report, which can be viewed in node mode.
Cache IO Stats	I/O statistics on user tables and indexes. Database/Node-wide report, which can be viewed in cluster or node mode.
Utility status	Status information about the replication slot and background checkpoint. Node-wide report, which can be viewed in node mode.
Object stats	Performance statistics on the index and table dimensions. Database/Node-wide report, which can be viewed in cluster or node mode.
Configuration settings	Node configuration. Node-wide report, which can be viewed in node mode.
SQL Detail	SQL statement text details. Database/Node-wide report, which can be viewed in cluster or node mode.