elastic / elastic/apm-server

Optimise tail-based sampling when sample rate is 100%

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#8,234 0 comments 0 reactions 1 assignee Claimed by @kruskall View on GitHub
8.8-candidate enhancement
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Description

When a tail-based sampling policy has `sample_rate 1`, we should skip reservoir sampling. Instead, immediately index the root transaction and record the sampling decision so we immediately index related events.

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