The maximum time by which the deadline for each incoming message is extended.
While waiting for an ack or nack, The Cloud Pub/Sub C++ client library will extend the deadline by at most this amount. The default extension time is 10 minutes. An application may wish to reduce this extension time so the Pub/Sub service will resend a message sooner when it does not hear back from a Subscriber. With at-least-once semantics, making the time too short may increase the number of duplicate messages delivered by the service.
The value is clamped between 10 seconds and 10 minutes. Note that this option also affects the effective range for MinDeadlineExtensionOption.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis document outlines the \u003ccode\u003eMaxDeadlineExtensionOption\u003c/code\u003e for the Cloud Pub/Sub C++ client library, detailing how it controls the maximum duration to extend message deadlines while awaiting acknowledgments.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of \u003ccode\u003eMaxDeadlineExtensionOption\u003c/code\u003e is 2.37.0-rc, with a range of previous versions listed down to 2.11.0, all accessible through their respective links.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMaxDeadlineExtensionOption\u003c/code\u003e is set to a default extension time of 10 minutes, but it can be reduced, although setting it too low may increase the number of duplicate messages.\u003c/p\u003e\n"],["\u003cp\u003eThe value for \u003ccode\u003eMaxDeadlineExtensionOption\u003c/code\u003e is clamped between 10 seconds and 10 minutes, and it also influences the effective range of the \u003ccode\u003eMinDeadlineExtensionOption\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eMaxDeadlineExtensionOption\u003c/code\u003e is a type alias of \u003ccode\u003estd::chrono::seconds\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
