| Excerpt |
|---|
| Fedora 4 is instrumented using Metrics. These metrics are exposed via JMX and an HTTP API. All REST API operations track timing and histogram information. Key internal API methods are also included. Modeshape includes its own metrics reporting over JMX. |
Here is an example metrics block:
| Code Block |
|---|
"org.fcrepo.api.FedoraLdp.createObject" : {
"count" : 0,
"max" : 0.0,
"mean" : 0.0,
"min" : 0.0,
"p50" : 0.0,
"p75" : 0.0,
"p95" : 0.0,
"p98" : 0.0,
"p99" : 0.0,
"p999" : 0.0,
"stddev" : 0.0,
"m15_rate" : 0.0,
"m1_rate" : 0.0,
"m5_rate" : 0.0,
"mean_rate" : 0.0,
"duration_units" : "seconds",
"rate_units" : "calls/second"
}, |
To enable Metrics reporting to JMX, add the following System Properties to your container startup script/command:
| Code Block |
|---|
-Dcom.sun.management.jmxremote -Dspring.profiles.active=metrics.jmx |
To inspect the metrics published to JMX,
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