~/talk

Restoring FDB after Catastrophic Accidents

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github:mzeier
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A multi-petabyte FoundationDB deployment recovers from three real incidents using FDBDR, Linux filesystem snapshots and EBS snapshots, proving an end-to-end restore of a 20 TB mirror after kernels were wiped and verifying the process on replayed production traffic. Recovery uses automated runbooks, LVM restore of boot volumes, coordinator tagging, and a scripted fleet replace to bring new instances up. Lessons: 20 terabytes gone is recoverable, EBS snapshots work but are slow, and FDBDR yields fast catch-up when prepped.

AI-written summary · about

  1. 0:00Introduction
  2. 1:51FoundationDB scale
  3. 3:15Missing kernels disaster
  4. 8:35Lessons learned
  5. 11:21Restoring FDB from EBS
  6. 13:09Summary & Q&A
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