Lightning Talk: Beyond NTP: High-accuracy clocks for distributed observability
Lightningat OTel Community Day North America 2022 · on Monday, 2022-06-20· at 11:40· JW Marriott Austin·
summary
Clockwork provides a production clock sync system derived from Huygens (NSDI’18) that runs as a mesh of probes instead of an NTP tree and claims 3 orders of magnitude more accurate timestamps. It synchronizes bare‑metal nodes to nanoseconds and cloud VMs to microseconds, exposes a TrueTime-like API with error bounds, measures one‑way RPC and message delays, aligns traces and logs for OpenTelemetry/Jaeger/Pixie, and offers a post‑hoc timestamp translation service for legacy data.
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chapters (7)
- 0:00Intro
- 5:40Aligning traces with accurate timestamps
- 6:20Putting distributed logs on a single timeline
- 7:56Instrumenting message bus based microservices
- 9:07Clockwork.io: Accurate clock sync at scale
- 10:00Clockwork: Single-digit microsecond sync in the cloud
- 11:54How Clockwork plans to contribute to Tel
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