ext_proc: change default sampling to false inheriting from parent decision #37794
+15
−10
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Commit Message: ext_proc: change default sampling decision to false
Fixes: #37783
Additional Description: Default to using the parent span's sampled status instead of true (default in StreamOptions), so that we don't emit orphan spans for all ext_proc streams where the parent span is not sampled. That's the same issue seen in Lua httpCall (#33200) and ext_authz (#19343).
Risk Level: Low
Testing: changed the tracing integration test behavior and validated in production.