SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.

SigNoz Community

Hi,
Is there a way to write alerts/notifications on
1. p99 latencies
2. rate of errors thrown
3. rate of logs being thrown based on specific keys, like container name, log level etc
Apart from promql, Raw clickhouse queries from your own codebase will also work for me

<@U01HWQ1RTC2> do you have more insights on this

<@U047H5RL3SP>
1. Application latency. You can add more filters or remove operation filter. Below is just an example promql 
```histogram_quantile(0.99, sum(rate(signoz_latency_bucket{service_name="frontend", operation="HTTP GET /dispatch"}[5m])) by (le))```
2. Error percentage of application. Below example for `redis` service in hotrod example
```max(sum(rate(signoz_calls_total{service_name="redis", status_code="STATUS_CODE_ERROR"}[5m]) OR rate(signoz_calls_total{service_name="redis", http_status_code=~"5.."}[5m]))*100/sum(rate(signoz_calls_total{service_name="redis"}[5m]))) &lt; 1000 OR vector(0)```
3. Yet to come. Development for enabling clickhouse query based alerts in progress <https://github.com/SigNoz/signoz/issues/1699>