feat(sdk-core): add Async HTTP-client warm-up to SdkWarmUp.prime() for CRaC priming#7092
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joviegas merged 12 commits intoJun 30, 2026
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Motivation and Context
Async counterpart to #7080 (sync warm-up).
SdkWarmUp.prime()warmed only sync HTTP clients.Similar implementation was needed for async clients (Netty, CRT)
Modifications
Adds
AsyncHttpClientWarmer, the async analogue ofSyncHttpClientWarmerfrom #7080:discovers each
SdkAsyncHttpService, sends a best-effort GET to the STS endpoint, drainsthe response. Reuses the same infra (
HttpClientWarmer,WarmUpDiscovery,RegionEndpointResolver) and is wired intoClasspathHttpWarmupInvoker, soprime()nowwarms both sync and async.
Async-specific (vs #7080):
CompletableFuture— must complete before checkpoint.SimpleSubscriber(overrides no-op onComplete/onError).ASYNC_BLOCKING_CALLsuppression for the intentional bounded get().Test
License