I wrote a k6 extension about logging

here:

If you need to keep a log, you can consider using it.

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here

Sorry, I need to fix a bug.Just discovered a problem.

When the file does not exist, there is a problem with concurrent writing to the log (part is lost). Concurrent writing to the log is fine when the file exists.
I don’t know how to fix it. I need some time. But it works for now.

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