Subsetting based on consistent hashing. For Traffic Director, the number of backends per backend group (the subset size) is based on the subset_size parameter. For Internal HTTP(S) load balancing, the number of backends per backend group (the subset size) is dynamically adjusted in two cases: - As the number of proxy instances participating in Internal HTTP(S) load balancing increases, the subset size decreases. - When the total number of backends in a network exceeds the capacity of a single proxy instance, subset sizes are reduced automatically for each service that has backend subsetting enabled.
None
No Subsetting. Clients may open connections and send traffic to all backends of this backend service. This can lead to performance issues if there is substantial imbalance in the count of clients and backends.
UndefinedPolicy
A value indicating that the enum field is not set.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08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\u003eThis webpage details the \u003ccode\u003ePolicy\u003c/code\u003e enum within the \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e namespace, specifically for backend subsetting, covering versions from 1.0.0 up to the latest 3.6.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePolicy\u003c/code\u003e enum offers options for consistent hash subsetting (\u003ccode\u003eConsistentHashSubsetting\u003c/code\u003e), no subsetting (\u003ccode\u003eNone\u003c/code\u003e), and an undefined policy status (\u003ccode\u003eUndefinedPolicy\u003c/code\u003e).\u003c/p\u003e\n"],["\u003cp\u003eConsistent hash subsetting dynamically adjusts the number of backends per backend group based on the \u003ccode\u003esubset_size\u003c/code\u003e parameter in Traffic Director, or decreases the subset size as the number of proxy instances increases in Internal HTTP(S) load balancing.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eNone\u003c/code\u003e policy option allows connections to open to all backends, and may lead to performance issues if there is substantial imbalance between the number of clients and backends.\u003c/p\u003e\n"]]],[],null,[]]
