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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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\u003eThis page provides documentation for the \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e within the Google Cloud Spanner C++ library, with a focus on various versions.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version is \u003ccode\u003e2.37.0-rc\u003c/code\u003e, while \u003ccode\u003e2.36.0\u003c/code\u003e is the currently displayed version, and a history going as low as \u003ccode\u003e2.11.0\u003c/code\u003e is documented here.\u003c/p\u003e\n"],["\u003cp\u003eThis option controls the interval at which sessions are refreshed to avoid garbage collection by the backend, with a recommended duration of less than 60 minutes.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e is an option for \u003ca href=\"https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html\"\u003e\u003ccode\u003egoogle::cloud::Options\u003c/code\u003e\u003c/a\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe type alias for \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e is \u003ccode\u003estd::chrono::seconds\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]