doc: add note for handling signal events in trace events #41438
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@nodejs/diagnostics |
jasnell
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Jan 17, 2022
edsadr
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mmarchini
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Jan 18, 2022
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Can someone from diagnostics explain why the signal handler is needed in this case :)? |
Flarna
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Jan 18, 2022
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Reading the linked issues and #22734 tells that flushing the trace events in a signal handler is not trivial and would require quite some work (if possible at all). There is #22883 since a while which asks for a fix. By installing a signal handler from JS the default action of this signal (end process) is not executed anymore. By calling |
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Flarna
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Refs: #14802 PR-URL: #41438 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Adrian Estrada <[email protected]> Reviewed-By: Mary Marchini <[email protected]> Reviewed-By: Gerhard Stöbich <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]>
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Refs: nodejs#14802 PR-URL: nodejs#41438 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Adrian Estrada <[email protected]> Reviewed-By: Mary Marchini <[email protected]> Reviewed-By: Gerhard Stöbich <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]>
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Refs: #14802 PR-URL: #41438 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Adrian Estrada <[email protected]> Reviewed-By: Mary Marchini <[email protected]> Reviewed-By: Gerhard Stöbich <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]>
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Refs: #14802 PR-URL: #41438 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Adrian Estrada <[email protected]> Reviewed-By: Mary Marchini <[email protected]> Reviewed-By: Gerhard Stöbich <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]>
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Refs: #14802 PR-URL: #41438 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Adrian Estrada <[email protected]> Reviewed-By: Mary Marchini <[email protected]> Reviewed-By: Gerhard Stöbich <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]>
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Refs: #14802 PR-URL: #41438 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Adrian Estrada <[email protected]> Reviewed-By: Mary Marchini <[email protected]> Reviewed-By: Gerhard Stöbich <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]>
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Keeping in mind issues like #18476 and #14802, I went ahead and added a note to the docs for users to handle signal events properly, so that trace events are correctly logged into files.
I'm happy to make any changes to this PR as needed since it's my first time contributing to the Node.js project.