The instance is being drained. The existing connections to the instance have time to complete, but the new ones are being refused.
Healthy
The instance is reachable i.e. a connection to the application health checking endpoint can be established, and conforms to the requirements defined by the health check.
Timeout
The instance is unreachable i.e. a connection to the application health checking endpoint cannot be established, or the server does not respond within the specified timeout.
UndefinedDetailedHealthState
A value indicating that the enum field is not set.
Unhealthy
The instance is reachable, but does not conform to the requirements defined by the health check.
Unknown
The health checking system is aware of the instance but its health is not known at the moment.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eManagedInstanceInstanceHealth.Types.DetailedHealthState\u003c/code\u003e enum is 3.6.0, which can be found in the \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e namespace within the \u003ccode\u003eGoogle.Cloud.Compute.V1.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"],["\u003cp\u003eThis documentation provides reference and code samples for the Compute Engine v1 API, specifically detailing the \u003ccode\u003eManagedInstanceInstanceHealth.Types.DetailedHealthState\u003c/code\u003e enum.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eDetailedHealthState\u003c/code\u003e enum represents the current detailed health status of an instance, and it includes fields like \u003ccode\u003eDraining\u003c/code\u003e, \u003ccode\u003eHealthy\u003c/code\u003e, \u003ccode\u003eTimeout\u003c/code\u003e, \u003ccode\u003eUnhealthy\u003c/code\u003e, \u003ccode\u003eUnknown\u003c/code\u003e, and \u003ccode\u003eUndefinedDetailedHealthState\u003c/code\u003e, each with specific implications for instance connectivity and health.\u003c/p\u003e\n"],["\u003cp\u003eThere are a total of 29 different versions of this API listed in the content, ranging from version 1.0.0 all the way to the most current version 3.6.0.\u003c/p\u003e\n"]]],[],null,[]]
