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Update labs/promql/solution.md #2

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Update solution.md
alexx384 Jun 2, 2025
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Remove line break from labs/promql/solution.md
alexx384 Jun 2, 2025
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16 changes: 14 additions & 2 deletions labs/promql/solution.md
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,19 @@ avg without(job, status)(rate(fulfilment_requests_total{status="failed"}[5m])) /
### q5- average failure rate by version:

```
avg without(job, status, instance)(rate(fulfilment_requests_total{status="failed"}[5m]) * on(instance) group_left(app_version) app_info) / avg without(job, status, instance)(rate(fulfilment_requests_total{status="processed"}[5m])* on(instance) group_left(app_version) app_info)
avg without (instance) (
(
avg without (job, status) (
rate(
fulfilment_requests_total{status='failed'}[5m]
)
) / avg without (job, status) (
rate(
fulfilment_requests_total{status='processed'}[5m]
)
)
) * on (instance) group_left(app_version) app_info
)
```

### Results
Expand All @@ -40,4 +52,4 @@ You'll see output like this:
|`{app_version="1.3.1"}`| `0.04880891333737356`|
|`{app_version="1.5.2"}` |`0.1361644759015841`|

Turns out the new version is producing errors at 3X the rate of the old version. Guess we need to rollback the update :)
Turns out the new version is producing errors at 3X the rate of the old version. Guess we need to rollback the update :)