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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 webpage lists different versions of the \u003ccode\u003eMaxDeadlineExtensionOption\u003c/code\u003e for the Cloud Pub/Sub C++ client library, ranging from version 2.11.0 to the latest release candidate 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eMaxDeadlineExtensionOption\u003c/code\u003e dictates the maximum time the client library will extend the deadline for incoming messages while waiting for an acknowledgement or negative acknowledgement, with a default of 10 minutes.\u003c/p\u003e\n"],["\u003cp\u003eModifying this option allows applications to adjust how quickly the Pub/Sub service resends undelivered messages, balancing the trade-off between message delivery speed and potential message duplication, as it is clamped between 10 seconds and 10 minutes.\u003c/p\u003e\n"],["\u003cp\u003eThis option directly affects the valid range for \u003ccode\u003eMinDeadlineExtensionOption\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
