# InstanceState


Information about the state of an EC2 instance.

## Contents


 ** Description **   
A description of the instance state. This string can contain one or more of the following messages.  
+  `N/A` 
+  `A transient error occurred. Please try again later.` 
+  `Instance has failed at least the UnhealthyThreshold number of health checks consecutively.` 
+  `Instance has not passed the configured HealthyThreshold number of health checks consecutively.` 
+  `Instance registration is still in progress.` 
+  `Instance is in the EC2 Availability Zone for which LoadBalancer is not configured to route traffic to.` 
+  `Instance is not currently registered with the LoadBalancer.` 
+  `Instance deregistration currently in progress.` 
+  `Disable Availability Zone is currently in progress.` 
+  `Instance is in pending state.` 
+  `Instance is in stopped state.` 
+  `Instance is in terminated state.` 
Type: String  
Required: No

 ** InstanceId **   
The ID of the instance.  
Type: String  
Required: No

 ** ReasonCode **   
Information about the cause of `OutOfService` instances. Specifically, whether the cause is Elastic Load Balancing or the instance.  
Valid values: `ELB` \$1 `Instance` \$1 `N/A`   
Type: String  
Required: No

 ** State **   
The current state of the instance.  
Valid values: `InService` \$1 `OutOfService` \$1 `Unknown`   
Type: String  
Required: No

## See Also


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/elasticloadbalancing-2012-06-01/InstanceState) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/elasticloadbalancing-2012-06-01/InstanceState) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/elasticloadbalancing-2012-06-01/InstanceState)