# ServiceDeploymentCircuitBreaker
<a name="API_ServiceDeploymentCircuitBreaker"></a>

Information about the circuit breaker used to determine when a service deployment has failed.

The deployment circuit breaker is the rolling update mechanism that determines if the tasks reach a steady state. The deployment circuit breaker has an option that will automatically roll back a failed deployment to the last cpompleted service revision. For more information, see [How the Amazon ECS deployment circuit breaker detects failures](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/deployment-circuit-breaker.html) in the* Amazon ECS Developer Guide*.

## Contents
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 ** failureCount **   <a name="ECS-Type-ServiceDeploymentCircuitBreaker-failureCount"></a>
The number of times the circuit breaker detected a service deploymeny failure.  
Type: Integer  
Required: No

 ** status **   <a name="ECS-Type-ServiceDeploymentCircuitBreaker-status"></a>
The circuit breaker status. Amazon ECS is not using the circuit breaker for service deployment failures when the status is `DISABLED`.  
Type: String  
Valid Values: `TRIGGERED | MONITORING | MONITORING_COMPLETE | DISABLED`   
Required: No

 ** threshold **   <a name="ECS-Type-ServiceDeploymentCircuitBreaker-threshold"></a>
The threshhold which determines that the service deployment failed.  
The deployment circuit breaker calculates the threshold value, and then uses the value to determine when to move the deployment to a FAILED state. The deployment circuit breaker has a minimum threshold of 3 and a maximum threshold of 200. and uses the values in the following formula to determine the deployment failure.  
 `0.5 * desired task count`   
Type: Integer  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ecs-2014-11-13/ServiceDeploymentCircuitBreaker) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/ServiceDeploymentCircuitBreaker) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ecs-2014-11-13/ServiceDeploymentCircuitBreaker)