[WIP] fix: fix metric may be zero #2730
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What problem does this PR solve?
Issue Number: #2391
please do not review this pr now
Problem Summary:
What is changed and how it works?
What's Changed: add patch
How it Works: we can cherry-pick some commits, which supports fork new thread without exec, to avoid metric may be zero
Side effects(Breaking backward compatibility? Performance regression?): later...
Check List