Viewing the Usage of the DWS Resource Pool

You can check the real-time statistics and resource consumption history about resource pools.

Accessing the Resource Monitoring Page

Log in to the DWS console.
Choose Dedicated Clusters > Clusters and locate the cluster to be monitored.
In the Operation column of the target cluster, click Monitoring Panel.
In the navigation pane on the left, choose Monitoring > Resource Pool Monitoring.

Resource Pool

You can check user-defined resource pools, real-time and historical resource consumption, and the resource quotas of resource pools. You can click the setting button in the upper right corner of the list to select the metrics to be displayed in the list. For details about the metrics, see Table 1.

**Table 1** Resource pool metrics
Metric Name	Description	Monitoring Interval (Raw Data)
Resource Pool	Resource pool name.	120s
Monitoring	You can click the monitoring icon to display the historical consumption trends of resources such as the CPU, memory, and disk.	120s
CPU Usage	Real-time CPU usage of a resource pool	120s
CPU Share	Percentage of CPU time that can be used by users associated with the current resource pool to execute jobs.	120s
Storage	Storage space of a resource pool	120s
Disk Usage	Real-time disk usage of a resource pool	120s
Memory	Memory quota of a resource pool	120s
Memory Usage	Real-time memory usage of a resource pool	120s
Real-Time Simple Statement Concurrency	Number of concurrent simple queries in a resource pool. Concurrent simple queries are not controlled by the resource pool	120s
Simple Statement Concurrency	Quota for simple concurrency in a resource pool.	120s
Real-Time Complex Statement Concurrency	Number of concurrent complex queries in a resource pool. Concurrent complex queries are controlled by the resource pool.	120s
Complex Statement Concurrency	Quota for complex concurrency in a resource pool.	120s
Operation	Resource pool configurations	-

User Resource Usage

Click the arrow next to a resource pool name to expand resource usage details. For details about the metrics, see Table 2.

You can view the resource usage details of the default resource pool only for clusters of version 8.2.1 or later.

**Table 2** User resource usage metrics
Metric Name	Description	Monitoring Interval (Raw Data)
Username	Name of a user in the current resource pool	120s
CPU Usage	Real-time CPU usage of a user	120s
CPU Share	Percentage of CPU time that can be used by users associated with the current resource pool to execute jobs.	120s
Storage	Storage space used by a user	120s
Disk Usage	Real-time disk usage of a user	120s
Memory	Real-time memory space of a user	120s
Memory Usage	Real-time memory usage of a user	120s

Queries Waiting in a Resource Pool

You can view the queries waiting in a resource pool in real time to check workload status. For details about the metrics, see Table 3.

**Table 3** Metrics of queries waiting in a resource pool
Metric Name	Description	Monitoring Interval (Raw Data)
User	Username of a query statement	60s
Application name	Application name of a query statement	60s
Database	Name of the database corresponding to a query statement	60s
Queuing Status	Queuing status of a query statement in a resource pool	60s
Wait Time (ms)	Waiting time before a query statement is executed, in milliseconds	60s
Resource Pool	Resource pool to which a query statement belongs	60s
Statement	Details of a query statement submitted by a user	60s

Checking Circuit Breaking Queries

You can view the status of a triggered circuit breaking query in a resource pool. For details about the metrics, see Table 4.

**Table 4** Circuit breaking query metrics
Metric Name	Description	Monitoring Interval (Raw Data)
Query ID	ID of a circuit breaking statement	60s
Statement	Circuit breaking query statement	60s
Blocking Time (ms)	Blocking time of a circuit breaking statement, in milliseconds	60s
Execution Time (ms)	Execution time of a circuit breaking statement, in milliseconds	60s
CPU Time (ms)	CPU time consumed by a circuit breaking statement, in milliseconds	60s
CPU Skew (%)	CPU skew of a circuit breaking statement on each DN	60s
Exception Handling	Exception handling method of a circuit breaking statement	60s
Status	Real-time status of a circuit breaking statement	60s