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A comment on AWS X-Ray – Distributed Tracing System. Parent comment
The service works via the SDK's in various languages, that report tracing information to a local daemon that runs on the host, over UDP.
The daemon then batches the data, applies sampling (Which is configurable, all the way to 100% - report everything), and sends it en-masse to AWS.
Edit: See Sampling Rules section here - http://docs.aws.amazon.com/xray/latest/devguide/xray-sdk-nod...
I concur, it was specifically stated that 100% sampling is an option (and is by default?)
The service works via the SDK's in various languages, that report tracing information to a local daemon that runs on the host, over UDP.
The daemon then batches the data, applies sampling (Which is configurable, all the way to 100% - report everything), and sends it en-masse to AWS.
Edit: See Sampling Rules section here - http://docs.aws.amazon.com/xray/latest/devguide/xray-sdk-nod...