[feature]Adaptive Flow Control with Q learning algorithm #1673

Signed-off-by: yunfeiyanggzq <[email protected]>

Introduce support through a customized client builder `SentinelApacheHttpClientBuilder`.

…libaba#1607) Signed-off-by: yunfeiyanggzq <[email protected]>

- One config per interceptor instead of the global config - Polish document and demo Signed-off-by: Eric Zhao <[email protected]>

…aba#1529) Signed-off-by: yunfeiyanggzq <[email protected]>

…rove strategy * Add `CircuitBreaker` abstraction (with half-open state) and add circuit breaker state change event observer support. * Improve circuit breaking strategy (avg RT → slow request ratio) and make statistics of each rule dependent (to support arbitrary statistic interval). * Add simple "trial" mechanism (aka. half-open). * Refactor mechanism of metric recording and state change handling for circuit breakers: record RT and error when requests have completed (i.e. `onExit`, based on alibaba#1420). Signed-off-by: Eric Zhao <[email protected]>

Signed-off-by: Eric Zhao <[email protected]>

…uarkus Signed-off-by: Eric Zhao <[email protected]>

Signed-off-by: Eric Zhao <[email protected]>

…1655) Signed-off-by: yunfeiyanggzq <[email protected]>

Signed-off-by: cj <[email protected]>

…quest is blocked by upcoming rules (alibaba#1645) * Refactor the workflow to fix the bug that circuit breaker may remain half-open state forever when the request is blocked by upcoming rules: revert the state change in exit handler (as a temporary workaround) * Add exit handler in Entry as a per-invocation hook.

- Only carry context in tryPass/onComplete method (this might be generic in upcoming versions) Signed-off-by: Eric Zhao <[email protected]>

- Rename: whenComplete -> whenTerminate - Execute the exit handler directly after the onExit hook of all slots Signed-off-by: Eric Zhao <[email protected]>

…shing traffic type (alibaba#1665) - Add EntryType args to all hook methods

Signed-off-by: Eric Zhao <[email protected]>

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…nel) - Unify the extended interface as a few event handlers: onPass, onBlocked, onComplete and onError - Polish related code Signed-off-by: Eric Zhao <[email protected]>

…ify config (alibaba#1617) * Support customized origin parser in Apache Dubbo 2.7.x adapter * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out)

Signed-off-by: Eric Zhao <[email protected]>

If entry already exists in request just skip creation.

)

…ogic for validation Signed-off-by: Eric Zhao <[email protected]>

- Fix NPE bug in consumer filter (when non-biz error occurred) - Improve default fallback in Dubbo 2.7.x adapter: convert the BlockException to a simple RuntimeException (with necessary message) - Polish code and comments Signed-off-by: Eric Zhao <[email protected]>

…apter (alibaba#1681)

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

…ba#1555)

…terGlobalConfig (alibaba#1572) * Unify Dubbo callback registry (for fallback and origin parser) into DubboAdapterGlobalConfig * Polish default fallback implementation (wrap exception with RpcResult rather than directly throw it out) Signed-off-by: Eric Zhao <[email protected]>

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[feature]Adaptive Flow Control with Q learning algorithm #1673

[feature]Adaptive Flow Control with Q learning algorithm #1673

Commits on Aug 20, 2020