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On Saturday night, one of our CT logs rejected most submissions for 30 minutes. I just published the post-mortem, and the investigation was... a lot of fun? It involves Go mutex starvation, SQLite WAL behavior, and ZFS record sizes. I got to SIGKILL a VM 200 times, implement a turnstile (TIL!), and order a Nokia flip phone. https:// groups.google.com/a/chromium.o…