release-25.4: raftstorebench: prevent iter use-after-close #156299
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The `statsLoop` could still be running. In the linked test flake below, we see it call `(*pebble).GetMetrics` when the engines are already closed. Rearrange the code so that we wait for `statsLoop` to terminate properly before exiting the test. Closes cockroachdb#156138. Epic: none
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arulajmani
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Oct 28, 2025
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Backport 1/1 commits from #156288 on behalf of @tbg.
The
statsLoopcould still be running. In the linked test flake below, we see it call(*pebble).GetMetricswhen the engines are already closed.Rearrange the code so that we wait for
statsLoopto terminate properly before exiting the test.Closes #156138.
Epic: none
Release justification: