[ML] Better cleanup of normalizer quantiles state#2894
[ML] Better cleanup of normalizer quantiles state#2894edsavage wants to merge 8 commits intoelastic:mainfrom
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Ensure that quantiles state documents are always removed after an error has been encountered. This is intended to stop the disk being cluttered with many such documents after repeated failures.
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valeriy42
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valeriy42
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Thank you for addressing this issue. I have a couple of quick comments.
A more general comment: we have the same situation in bin/autodetect/Main.cc. Maybe you can generalize the RAII guard and use it in both cases.
bin/normalize/Main.cc
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| } | ||
| LOG_WARN(<< "Deleting quantiles state file '" << m_QuantilesStateFile << "'"); | ||
| // Ignore the return value from remove, the file may have already been deleted. | ||
| std::remove(m_QuantilesStateFile.c_str()); |
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You need to check the return value of std::remove and log if the files could not be deleted for some reason (permissions, locked file, etc.).
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Also, it would be consistent with the happy path behavior to delete the quantile files only when --deleteStateFiles is set.
bin/normalize/Main.cc
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| // No need for a warning here so we reset the cleanup function and delete the file explicitly if requested. | ||
| removeQuantilesStateOnFailure.reset(); | ||
| if (deleteStateFiles) { | ||
| std::remove(quantilesStateFile.c_str()); |
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Here again, it would be good to check the return value of std::remove and log success or failure with errno.
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Ensure that quantiles state documents are always removed after an error has been encountered. This is intended to stop the disk being cluttered with many such documents after repeated failures.