JSON schema metrics
Metrics expose schema generation, query execution and CoV subscription data. You can log this information, link it, and use
it to generate alarms.
Figure 9. Schema metrics
These help with sizing and provisioning capacity from a cloud platform by estimating the traffic a station is likely to generate with a given JSON schema. They may also assist in identifying performance problems. Debugging can be assisted by using the reset action.
The metrics provide three categories of performance information: query performance, generate performance, and subscription performance.
| Queries | Generation | Subscription |
|---|---|---|
| Query Folder Executions | Request Schema Generations | Subscribes |
| Individual Query Executions | Schema Generations | Unsubscribes |
| Query Fails | Schema Generation Fails | Subscription Events |
| Last Query Fail Reason | Last Schema Generation Fail Reason | Subscription Events Ignored |
| Last Query Execution Millis | Output Changes | Cache Hits |
| Query Execution Millis Total | Last Output Size | Cache Misses |
| Query Execution Millis Max | Output Size Total | |
| Query Execution Millis Avg | Output Size Max | |
| Output Size Avg | ||
| Resolve Errors |