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Elastic Load Balancing
API Reference (API Version 2015-12-01)

TargetHealth

Information about the current health of a target.

Contents

Description

A description of the target health that provides additional details. If the state is healthy, a description is not provided.

Type: String

Required: No

Reason

The reason code. If the target state is healthy, a reason code is not provided.

If the target state is initial, the reason code can be one of the following values:

  • Elb.RegistrationInProgress - The target is in the process of being registered with the load balancer.

  • Elb.InitialHealthChecking - The load balancer is still sending the target the minimum number of health checks required to determine its health status.

If the target state is unhealthy, the reason code can be one of the following values:

  • Target.ResponseCodeMismatch - The health checks did not return an expected HTTP code.

  • Target.Timeout - The health check requests timed out.

  • Target.FailedHealthChecks - The health checks failed because the connection to the target timed out, the target response was malformed, or the target failed the health check for an unknown reason.

  • Elb.InternalError - The health checks failed due to an internal error.

If the target state is unused, the reason code can be one of the following values:

  • Target.NotRegistered - The target is not registered with the target group.

  • Target.NotInUse - The target group is not used by any load balancer or the target is in an Availability Zone that is not enabled for its load balancer.

  • Target.InvalidState - The target is in the stopped or terminated state.

If the target state is draining, the reason code can be the following value:

  • Target.DeregistrationInProgress - The target is in the process of being deregistered and the deregistration delay period has not expired.

Type: String

Valid Values: Elb.RegistrationInProgress | Elb.InitialHealthChecking | Target.ResponseCodeMismatch | Target.Timeout | Target.FailedHealthChecks | Target.NotRegistered | Target.NotInUse | Target.DeregistrationInProgress | Target.InvalidState | Elb.InternalError

Required: No

State

The state of the target.

Type: String

Valid Values: initial | healthy | unhealthy | unused | draining

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

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