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.
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.
Unspecified
There is no liveness health check for the instance. Only applicable for
instances in App Engine standard environment.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe provided content is reference documentation for the \u003ccode\u003eLivenessState\u003c/code\u003e enum within the Google Cloud App Engine v1 API, specifically for .NET.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eLivenessState\u003c/code\u003e enum represents the health check status of Flex instances, and the latest version documented is 2.4.0.\u003c/p\u003e\n"],["\u003cp\u003eThere are six possible \u003ccode\u003eLivenessState\u003c/code\u003e values: \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\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eEach \u003ccode\u003eLivenessState\u003c/code\u003e field has a description that explains its meaning, such as \u003ccode\u003eHealthy\u003c/code\u003e indicating the instance is reachable and conforms to the health check requirements.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation is available for version 1.0.0 all the way to the latest version 2.4.0.\u003c/p\u003e\n"]]],[],null,[]]
