Work toward fixing ONOS-1138: Batching topo event may cause event loss
Added another metric to the onos-app-metrics-topology application
to collect and display the number and rate of the Reasons for the
Topology Events.
Example:
onos> topology-events-metrics
...
Topology Graph Event Timestamp (ms from epoch)=1426699861509
Topology Graph Events count=6 rate(events/sec) mean=0.002315 m1=0.000000 m5=0.000004 m15=0.000378
Topology Graph Reasons Event Timestamp (ms from epoch)=1426699861509
Topology Graph Reasons Events count=9 rate(events/sec) mean=0.003472 m1=0.000000 m5=0.000005 m15=0.000567
The corresponding object names in the JSON output are:
topologyGraphReasonsEventRate
topologyGraphReasonsEventTimestamp
Change-Id: Ib1aeb83c38b3b72d0ae8a4f49bc1e14badc0199d
diff --git a/apps/metrics/topology/src/main/java/org/onosproject/metrics/topology/TopologyMetricsService.java b/apps/metrics/topology/src/main/java/org/onosproject/metrics/topology/TopologyMetricsService.java
index 77809ca..33c772d 100644
--- a/apps/metrics/topology/src/main/java/org/onosproject/metrics/topology/TopologyMetricsService.java
+++ b/apps/metrics/topology/src/main/java/org/onosproject/metrics/topology/TopologyMetricsService.java
@@ -26,35 +26,42 @@
/**
* Gets the last saved topology events.
*
- * @return the last saved topology events.
+ * @return the last saved topology events
*/
public List<Event> getEvents();
/**
* Gets the Event Metric for the Device Events.
*
- * @return the Event Metric for the Device Events.
+ * @return the Event Metric for the Device Events
*/
public EventMetric topologyDeviceEventMetric();
/**
* Gets the Event Metric for the Host Events.
*
- * @return the Event Metric for the Host Events.
+ * @return the Event Metric for the Host Events
*/
public EventMetric topologyHostEventMetric();
/**
* Gets the Event Metric for the Link Events.
*
- * @return the Event Metric for the Link Events.
+ * @return the Event Metric for the Link Events
*/
public EventMetric topologyLinkEventMetric();
/**
* Gets the Event Metric for the Topology Graph Events.
*
- * @return the Event Metric for the Topology Graph Events.
+ * @return the Event Metric for the Topology Graph Events
*/
public EventMetric topologyGraphEventMetric();
+
+ /**
+ * Gets the Event Metric for the Topology Graph Reasons Events.
+ *
+ * @return the Event Metric for the Topology Graph Reasons Events
+ */
+ public EventMetric topologyGraphReasonsEventMetric();
}