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Joe Blubaugh b476ae62fb
Alerting: Write and Delete multiple alert instances. (#55350) 
Prior to this change, all alert instance writes and deletes happened
individually, in their own database transaction. This change batches up
writes or deletes for a given rule's evaluation loop into a single
transaction before applying it.

These new transactions are off by default, guarded by the feature toggle "alertingBigTransactions"

Before:

```
goos: darwin
goarch: arm64
pkg: github.com/grafana/grafana/pkg/services/ngalert/store
BenchmarkAlertInstanceOperations-8           398           2991381 ns/op         1133537 B/op      27703 allocs/op
--- BENCH: BenchmarkAlertInstanceOperations-8
    util.go:127: alert definition: {orgID: 1, UID: FovKXiRVzm} with title: "an alert definition FTvFXmRVkz" interval: 60 created
    util.go:127: alert definition: {orgID: 1, UID: foDFXmRVkm} with title: "an alert definition fovFXmRVkz" interval: 60 created
    util.go:127: alert definition: {orgID: 1, UID: VQvFuigVkm} with title: "an alert definition VwDKXmR4kz" interval: 60 created
PASS
ok      github.com/grafana/grafana/pkg/services/ngalert/store   1.619s
```

After:

```
goos: darwin
goarch: arm64
pkg: github.com/grafana/grafana/pkg/services/ngalert/store
BenchmarkAlertInstanceOperations-8          1440            816484 ns/op          352297 B/op       6529 allocs/op
--- BENCH: BenchmarkAlertInstanceOperations-8
    util.go:127: alert definition: {orgID: 1, UID: 302r_igVzm} with title: "an alert definition q0h9lmR4zz" interval: 60 created
    util.go:127: alert definition: {orgID: 1, UID: 71hrlmR4km} with title: "an alert definition nJ29_mR4zz" interval: 60 created
    util.go:127: alert definition: {orgID: 1, UID: Cahr_mR4zm} with title: "an alert definition ja2rlmg4zz" interval: 60 created
PASS
ok      github.com/grafana/grafana/pkg/services/ngalert/store   1.383s
```

So we cut time by about 75% and memory allocations by about 60% when
storing and deleting 100 instances.
2022-10-06 14:22:58 +08:00
..
src Alerting: Write and Delete multiple alert instances. (#55350) 2022-10-06 14:22:58 +08:00
typings/jest Tempo: Return new version of dataframe schema directly from the backend (#32116) 2021-03-22 19:09:15 +01:00
.eslintrc Chore: Restrict internal imports from other packages (#30453) 2021-01-21 09:04:31 +01:00
CHANGELOG.md Prettier: Fix all markdown files and add markdown files to CI verify step (#39776) 2021-09-29 14:34:40 +02:00
LICENSE_APACHE2 Re-license Grafana to AGPLv3 (#33184) 2021-04-20 19:03:30 +02:00
package.json Update dependency rollup-plugin-esbuild to v4.10.1 (#56191) 2022-10-03 16:27:37 +01:00
README.md Changelog and Readme: Update packages to beta and add Select breaking change (#24670) 2020-05-14 11:58:26 +02:00
rollup.config.ts Build: Introduce ESM and Treeshaking to NPM package builds (#51517) 2022-08-03 15:47:09 +02:00
tsconfig.build.json TSLint → ESLint (#21006) 2020-02-08 02:40:04 +01:00
tsconfig.json Build: Introduce ESM and Treeshaking to NPM package builds (#51517) 2022-08-03 15:47:09 +02:00

README.md

Grafana Data Library

@grafana/data is currently in BETA.

This package holds the root data types and functions used within Grafana.