On 10 Jan 2025, at 10:40, Tom Talpey wrote: > I wonder how many sysadmins are actually changing it, and why. It's > not truly a correctness thing, more of an availability setting, so > the choice of value is pretty soft. As you say, if the clients all > reclaim promptly, nobody's the wiser. Do we have any data on how > often the setting actually gets used? Here's an anecdote - when I was a sysadmin (~12 years ago), we were very aware of the grace period and tried to optimize it because too long meant many of our clients applications would hang for a longer outage, and too short meant that all the locks weren't recovered. We also depended on lock recovery working well because we would often update and migrate servers. This was before knfsd v4 could end it early, which is.. quite nice. Ben
