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RFC: rough sketch of retry tracing (DON'T MERGE) #583
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| @Override | ||
| public RetryingFuture<ResponseT> futureCall(RequestT request, ApiCallContext inputContext) { | ||
| ApiCallContext context = callContextPrototype.nullToSelf(inputContext); | ||
| public RetryingFuture<ResponseT> futureCall(RequestT request, ApiCallContext context) { |
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| public RetryingFuture<ResponseT> futureCall(RequestT request, ApiCallContext inputContext) { | ||
| ApiCallContext context = callContextPrototype.nullToSelf(inputContext); | ||
| public RetryingFuture<ResponseT> futureCall(RequestT request, ApiCallContext context) { | ||
| RetryAlgorithm<ResponseT> retryAlgorithm = |
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Closing in favor of #590 |
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This is a rough sketch of how I plan on integrating opencensus.
There are 2 main changes being demonstrated in this PR:
Tracerthat gets passed around in theApiCallContext. TheTracercontains methods that correspond to various spans and annotations that will be generated. There are 2 implementations ofTracer: a noop one that will be used for external direct instantiations of theRetryingExecutors in google-cloud-java and the realOpencensusTracer, which will generate real spans and annotations. Each instance of aTracercorresponds to a single logical operation (an operation can contain multiple rpcs for retries).RetryingExecutorandRetryAlgorithmto create them per operation rather then per client. This approach was suggested by @garrettjonesgoogle and is different then the approach I discussed with @vam-google. It avoids the need to break the public surface.@garrettjonesgoogle & @vam-google take a look at this when you have a moment and let me know if I should continue down this road.