Carson Ip

TestRunManager_Reloader_newRunnerError is flaky e.g. https://github.com/elastic/apm-server/actions/runs/19664829682/job/56319090910?pr=19687 ``` WARNING: DATA RACE Write at 0x00c0001bc20b by goroutine 151: testing.tRunner.func1() /opt/hostedtoolcache/go/1.25.4/x64/src/testing/testing.go:1921 +0x904 runtime.deferreturn() /opt/hostedtoolcache/go/1.25.4/x64/src/runtime/panic.go:589 +0x5d testing.(*T).Run.gowrap1() /opt/hostedtoolcache/go/1.25.4/x64/src/testing/testing.go:1997 +0x44 Previous read at 0x00c0001bc20b by goroutine...

Seen in https://github.com/elastic/apm-server/actions/runs/18601289863/job/53040098353?pr=19191 ``` === RUN TestTailSampling sampling_test.go:158: waiting for 100 "parent" transactions sampling_test.go:166: Error Trace: /home/runner/work/apm-server/apm-server/systemtest/sampling_test.go:166 Error: Not equal: expected: 100 actual : 200 Test: TestTailSampling Messages: parent sampling_test.go:158:...

As TBS pebble implementation does not use db transaction and there are no locks, theoretically it is possible for the following sequence of events to happen. 1. goroutine A: a...

**APM Server version** (`apm-server version`): confirmed on 8.19.2 but should affect many versions **Description of the problem including expected versus actual behavior**: expected: follow apm docs on setting up apm_writer...

Github apm-server release notes e.g. [9.0.3](https://github.com/elastic/apm-server/releases/tag/v9.0.3) has a link like `https://www.elastic.co/docs/release-notes/apm#apm-9.0.3-release-notes`, note the anchor `#apm-9.0.3-release-notes`. Issue: In our docs, the actual anchor is `#elastic-apm-9.0.1-release-notes`, which was what was agreed upon...

**APM Server version** (`apm-server version`): main **Description of the problem including expected versus actual behavior**: ``` === RUN TestAPMServerInstrumentation instrumentation_test.go:92: Error Trace: /home/runner/work/apm-server/apm-server/systemtest/instrumentation_test.go:92 Error: Not equal: expected: "102633cf232dd5dfc20f962b726aeb21" actual :...