perf(debian-cve-convert): reduce memory usage and streamline Debian CVE converter - #5713
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jess-lowe merged 3 commits intoJul 28, 2026
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another-rex
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tl;dr: add a lightweight nvd struct for creating debian records and do gcs download in go
Changes
vulns.LoadTargetCVEMetadatato decode only essential fields (ID,Published,LastModified,Metrics) from NVD JSONs, bypassing memory-heavy CPE configuration trees, descriptions, and reference lists.buildDebianVulnerabilities()and addedruntime.GC()prior to uploading to allow immediate reclamation of intermediate package maps.-download-from-gcsflag to download NVD data directly in Go viagcs.DownloadBucket, removing reliance ongcloud storage cpinrun_debian_convert.sh.v.Modifiedtimestamps on generated OSV records using NVDlastModifiedmetadata (with fallback topublished).basically, the debian-cve-convert cron job is going to continue to need more and more memory as it loads all of the nvd cve records into memory, and there's been massive dumps of vulns recently (and they will continue to grow) it makes more sense to try and be more conservative about how we handle the memory problems.