Option for google::cloud::Options to set the interval at which we refresh sessions so they don't get collected by the backend GC.
The GC collects objects older than 60 minutes, so any duration below that (less some slack to allow the calls to be made to refresh the sessions) should suffice.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22 UTC."],[[["\u003cp\u003eThe latest version of the documentation is 2.37.0-rc, representing a release candidate, while the oldest version visible is 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThis page documents the \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e for Google Cloud Spanner, specifically focusing on how to manage session refresh intervals.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e is designed to prevent sessions from being garbage collected by the backend, which typically occurs after 60 minutes of inactivity.\u003c/p\u003e\n"],["\u003cp\u003eThe type alias for this option is \u003ccode\u003estd::chrono::seconds\u003c/code\u003e, indicating that the interval is measured in seconds.\u003c/p\u003e\n"],["\u003cp\u003eThe functionality is an option for \u003ccode\u003egoogle::cloud::Options\u003c/code\u003e which will set the rate of which sessions are refreshed.\u003c/p\u003e\n"]]],[],null,[]]
