time

  • Reading Group. Sundial: Fault-tolerant Clock Synchronization for Datacenters

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    In our 48th reading group meeting, we talked about time synchronization in distributed systems. More specifically, we discussed the poor state of time sync, the reasons for it, and most importantly, the solutions, as outline in the “Sundial: Fault-tolerant Clock Synchronization for Datacenters” OSDI’20 paper. We had a comprehensive presentation by Murat Demirbas. Murat’s talk…

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  • Trace Synchronization with HLC

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    Event logging or tracing is one of the most common techniques for collecting data about the software execution. For simple application running on the same machine, a trace of events timestamped with the machine’s hardware clock is typically sufficient. When the system grows and becomes distributed over multiple nodes, each node is going to produce…

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