SLI: Service Level Indicators
SLI (Service Level Indicators) are metrics that indicate how well a service is performing.
Process or Work Metrics give the system’s internal health and performance (observability).
- success / error rate
- Web server (at time 2015-04-24 08:13:01 UTC)
|throughput||requests per second||312|
|latency||90th percentile response time in seconds||0.4|
|success||percentage of responses that are 2xx since last measurement||99.1|
|error||percentage of responses that are 5xx since last measurement||0.1|
- Data store / Database (at time 2015-04-24 08:13:01 UTC)
|latency||90th percentile query time in seconds||0.02|
|throughput||queries per second||949|
|success||percentage of queries successfully executed since last measurement||100|
|error||percentage of queries yielding exceptions since last measurement||0|
|error||percentage of queries returning stale data since last measurement||4.2|