Ayoub Mrini

fix(wlog/watcher_test.go): make TestRun_AvoidNotifyWhenBehind more resilient

1

https://github.com/prometheus/prometheus/pull/14446#pullrequestreview-2166891678 follow-up

Add kubelet_pod_emptydir_volume_{used,size_limit}_bytes Prometheus metrics

25

#### What type of PR is this? /kind feature #### What this PR does / why we need it: Exposes `emptyDir` usage and size limit per Pod as Prometheus metrics...

Add more `t.Parallel()` to speed up tests

2

### Proposal Let's save some time. - The packages/subdirectories to be checked: - [ ] `cmd/prometheus`, see https://github.com/prometheus/prometheus/pull/14618 - [ ] `cmd/promtool` - [ ] `config/` - [ ] `discovery/`...

test(cmd/prometheus): speed up test execution by t.Parallel() when possible

3

related to https://github.com/prometheus/prometheus/issues/15185 turned some loops into subtests to make use of t.Parallel() On my machine: Reducing exec time for `github.com/prometheus/prometheus/cmd/prometheus` by `~65%`: `~110s -> ~35s` After rebasing + adding...

fix(storage/mergeQuerier): fix a data race

1

fixes https://github.com/prometheus/prometheus/issues/14723

fix: ensure the appropriate error message is produced when the RunOnFailure() option is used.

5

adjust RunOnFailure() doc. follow up to https://github.com/uber-go/goleak/pull/129

This is part of the "reduce WAL replay overhead/garbage" effort to help with https://github.com/prometheus/prometheus/issues/6934. On some WALs I have around I got: ``` │ v1.txt │ v2.txt │ │ sec/op...

feat(tsdb): allow using Direct IO for chuncks segments writing

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- Hidden behind a feature flag. - Only on "linux" for now (maybe not all of them) - Might be useful for other operations (WAL writing? index?) - TODO: ```...

data race in TestOnlyProviderStaleTargetsAreDropped

6

### What did you do? the test failed on unrelated change in https://github.com/prometheus/prometheus/pull/15529 This isn't the first occurrence of the data race ### What did you expect to see? _No...

also chore(tsdb): remove NewLeveledCompactorWithChunkSize constructor as unused, library users ca can redefine it on their side