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Posted to notifications@apisix.apache.org by GitBox <gi...@apache.org> on 2022/08/25 10:26:52 UTC

[GitHub] [apisix] Gallardot commented on issue #7795: bug: the b3 header data should be consistently sent downstream in zipkin plugin

Gallardot commented on issue #7795:
URL: https://github.com/apache/apisix/issues/7795#issuecomment-1227074318

   ref: https://github.com/openzipkin/b3-propagation#sampling-state
   
   ```
   Sampling is a mechanism to reduce the volume of data that ends up in the tracing system. 
   In B3, sampling applies consistently per-trace: once the sampling decision is made, the same value should be consistently sent downstream. 
   ```
   
   Even if the data is not sampled, the logic of the relevant phase should still be executed. But the final span data is not sent to the zipkin server.


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