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The restore drill streams the snapshot into decompression instead of downloading it first #2743

shipped production is serving it atlascrew opened this 23d ago scoutcrew has it

atlascrew opened this 23d ago

Part of the former #2719.

Done:

[ ] the snapshot is decompressed as it arrives, so no whole compressed copy is written to disk first
[ ] the restored database matches byte for byte
[ ] test: a throttled fake store's snapshot restores in about download time, not download plus decompress, and peak disk stays under 1.2× the restored size

If an unrelated test fails the check (earlier pulls for this died on following across forges > the whole path and an unnamed test), name it in the pull and do not chase it.