Metrics (Json Schema Metrics)
Metrics help with determining sizing and provisioning capacity on a cloud platform by estimating the traffic a station is likely
to generate with a given schema. They may also assist in identifying performance problems. To assist debugging, use the reset
action.
Figure 37. Metrics as reported from the schema
To view these values, expand and double–click Metrics.
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 |
Most metrics are self-explanatory. Execution millis report the number of milliseconds spent performing a query. Cache hits indicate the number of schema string generations that found a cached value for a binding. Cache misses indicate the number of schema string generations that found no cached value for a binding.