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Mastering Distributed Tracing
book

Mastering Distributed Tracing

by Yuri Shkuro
February 2019
Intermediate to advanced content levelIntermediate to advanced
444 pages
11h 36m
English
Packt Publishing
Content preview from Mastering Distributed Tracing

Clock skew adjustment

Anyone working with distributed systems programming knows that there is no such thing as accurate time. Each computer has a hardware clock built in, but those clocks tend to drift, and even using synchronization protocols like NTP can only get the servers maybe within a millisecond of each other. Yet we have seen that end-to-end tracing instrumentation captures the timestamp with most tracing events. How can we trust those timestamps?

Clearly, we cannot trust the timestamps to be actually correct, but this is not what we often look for when we analyze distributed traces. It is more important that timestamps in the trace are correctly aligned relative to each other. When the timestamps are from the same process, such as the ...

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Publisher Resources

ISBN: 9781788628464Supplemental Content