On Fri, Sep 21, 2018 at 02:28:07AM +0000, Tsunakawa, Takayuki wrote: > I find it more user friendly to include a description somewhere that > the user can tune the timeout per standby, like I added a tip in the > description of wal_sender_timeout. I'm afraid users won't know > whether and how to tune the setting per standby, as libpq's options > parameter doesn't seem well-known in my experience.
But that does not apply to this single parameter, no? I would think that a section in recovery.conf is more adapted. I can see that the patch I proposed up-thread could be more precise though, so why not adding at an extra paragraph? Here is an idea: "For a cluster distributed across multiple geographic locations, using a different value per location brings more flexibility in the cluster management. A smaller value is useful for faster failure detection with a standby having a low connection latency, and a larger value helps in judging better the health of a standby if located in a remote location, with a longer connection latency." -- Michael
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