Supported Metrics

This section describes the monitoring metrics and dimensions of EG. View these metrics on the EG console.

**Table 1** Event delivery metrics
ID	Name	Description	Value Range	Monitored Object	Raw Data Monitoring Period (Minute)
num	Invocations	Number of times event delivery attempts are made. Unit: count	≥ 0	Event subscription	1
success_num	Successful Invocations	Number of times events are finally delivered. Unit: count	≥ 0	Event subscription	1
process_time	Processing Time	Average time spent processing all event deliveries in a period. Unit: ms	≥ 0 ms	Event subscription	1
invoke_time	Invocation Duration	Average time spent delivering events in a period. Unit: ms	≥ 0 ms	Event subscription	1
fail_num	Failed Events	Number of events that fail to be delivered without needing a retry attempt. Unit: count	≥ 0	Event subscription	1
retry_success_num	Successful Retries	Number of events that are successfully delivered after retry attempts. Unit: count	≥ 0	Event subscription	1
retry_fail_num	Failed Retries	Number of events that still fail to be delivered after retry attempts. Unit: count	≥ 0	Event subscription	1

**Table 2** Event access metrics
ID	Name	Description	Value Range	Monitored Object	Raw Data Monitoring Period (Minute)
num	Invocations	Number of times event access attempts are made. Unit: count	≥ 0	Event channel	1
success_num	Successful Invocations	Number of times events are finally accessed. Unit: count	≥ 0	Event channel	1
process_time	Processing Time	Average time spent processing all event accesses in a period. Unit: ms	≥ 0 ms	Event channel	1
invoke_time	Invocation Duration	Average time spent sending events to the storage in a period. Unit: ms	≥ 0 ms	Event channel	1
event_size	Event Size	Average size of events accessed in a period. Unit: KB	≥ 0 bytes	Event channel	1