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Adapt rules to use new gRPC metrics #8879

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Nov 15, 2017
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Adapt rules to use new gRPC metrics #8879

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79446ea
Documentation/op-guide: Adapt alerting rules to new gRPC metrics
brancz Nov 15, 2017
092b270
Documentation/op-guide: Fix link to Prometheus 2.0 alerting rules
brancz Nov 15, 2017
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10 changes: 5 additions & 5 deletions Documentation/op-guide/etcd3_alert.rules
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Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,7 @@ ANNOTATIONS {

# alert if the 99th percentile of gRPC method calls take more than 150ms
ALERT GRPCRequestsSlow
IF histogram_quantile(0.99, rate(etcd_grpc_unary_requests_duration_seconds_bucket[5m])) > 0.15
IF histogram_quantile(0.99, sum(rate(grpc_server_handling_seconds_bucket{job="etcd",grpc_type="unary"}[5m])) by (grpc_service, grpc_method, le)) > 0.15
FOR 10m
LABELS {
severity = "critical"
Expand All @@ -84,8 +84,8 @@ ANNOTATIONS {

# alert if more than 1% of requests to an HTTP endpoint have failed within the last 5 minutes
ALERT HighNumberOfFailedHTTPRequests
IF sum by(method) (rate(etcd_http_failed_total{job="etcd"}[5m]))
/ sum by(method) (rate(etcd_http_received_total{job="etcd"}[5m])) > 0.01
IF sum(rate(grpc_server_handled_total{grpc_code!="OK",job="etcd"}[5m])) BY (grpc_service, grpc_method)
/ sum(rate(grpc_server_handled_total{job="etcd"}[5m])) BY (grpc_service, grpc_method) > 0.01
FOR 10m
LABELS {
severity = "warning"
Expand All @@ -97,8 +97,8 @@ ANNOTATIONS {

# alert if more than 5% of requests to an HTTP endpoint have failed within the last 5 minutes
ALERT HighNumberOfFailedHTTPRequests
IF sum by(method) (rate(etcd_http_failed_total{job="etcd"}[5m]))
/ sum by(method) (rate(etcd_http_received_total{job="etcd"}[5m])) > 0.05
IF sum(rate(grpc_server_handled_total{grpc_code!="OK",job="etcd"}[5m])) BY (grpc_service, grpc_method)
/ sum(rate(grpc_server_handled_total{job="etcd"}[5m])) BY (grpc_service, grpc_method) > 0.05
FOR 5m
LABELS {
severity = "critical"
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10 changes: 5 additions & 5 deletions Documentation/op-guide/etcd3_alert.rules.yml
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Expand Up @@ -26,8 +26,8 @@ groups:
changes within the last hour
summary: a high number of leader changes within the etcd cluster are happening
- alert: HighNumberOfFailedGRPCRequests
expr: sum(rate(etcd_grpc_requests_failed_total{job="etcd"}[5m])) BY (grpc_method)
/ sum(rate(etcd_grpc_total{job="etcd"}[5m])) BY (grpc_method) > 0.01
expr: sum(rate(grpc_server_handled_total{grpc_code!="OK",job="etcd"}[5m])) BY (grpc_service, grpc_method)
/ sum(rate(grpc_server_handled_total{job="etcd"}[5m])) BY (grpc_service, grpc_method) > 0.01
for: 10m
labels:
severity: warning
Expand All @@ -36,8 +36,8 @@ groups:
on etcd instance {{ $labels.instance }}'
summary: a high number of gRPC requests are failing
- alert: HighNumberOfFailedGRPCRequests
expr: sum(rate(etcd_grpc_requests_failed_total{job="etcd"}[5m])) BY (grpc_method)
/ sum(rate(etcd_grpc_total{job="etcd"}[5m])) BY (grpc_method) > 0.05
expr: sum(rate(grpc_server_handled_total{grpc_code!="OK",job="etcd"}[5m])) BY (grpc_service, grpc_method)
/ sum(rate(grpc_server_handled_total{job="etcd"}[5m])) BY (grpc_service, grpc_method) > 0.05
for: 5m
labels:
severity: critical
Expand All @@ -46,7 +46,7 @@ groups:
on etcd instance {{ $labels.instance }}'
summary: a high number of gRPC requests are failing
- alert: GRPCRequestsSlow
expr: histogram_quantile(0.99, rate(etcd_grpc_unary_requests_duration_seconds_bucket[5m]))
expr: histogram_quantile(0.99, sum(rate(grpc_server_handling_seconds_bucket{job="etcd",grpc_type="unary"}[5m])) by (grpc_service, grpc_method, le))
> 0.15
for: 10m
labels:
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2 changes: 1 addition & 1 deletion Documentation/op-guide/monitoring.md
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Expand Up @@ -100,7 +100,7 @@ Now Prometheus will scrape etcd metrics every 10 seconds.

### Alerting

There is a set of default alerts for etcd v3 clusters for [Prometheus 1.x](./etcd3_alert.rules) as well as [Prometheus 2.x](./etcd3_alert.rules).
There is a set of default alerts for etcd v3 clusters for [Prometheus 1.x](./etcd3_alert.rules) as well as [Prometheus 2.x](./etcd3_alert.rules.yml).

> Note: `job` labels may need to be adjusted to fit a particular need. The rules were written to apply to a single cluster so it is recommended to choose labels unique to a cluster.

Expand Down