I was not on call this weekend, and I want to write down what that felt like before I forget, because I always forget, and then I am surprised again next time.
The thing about being on call is not the pages. In a healthy team the pages are rare, and the system is mostly well behaved, and you can go weeks without the phone making that particular noise. The thing about being on call is the tether. It is the small adjustment you make to everything: not going for a long walk somewhere with no signal, not having the second pint, keeping the laptop in the same room as you, sleeping with the volume up. None of it is dramatic. All of it is a tax, paid quietly, on the whole shape of a weekend.
This weekend I was off the rota entirely, properly handed over, someone else holding the pager. And the difference is not subtle once you notice it.
What I actually did
Not much, gloriously.
On Saturday morning I left my phone on the kitchen table and went out on the bike for three hours, into the kind of June weather we get about four weekends a year, where the lanes are green and the only decision is which way to turn at the next junction. I did not check anything. There was nothing to check. If something had broken, it was not my something, and that knowledge changes how the air feels.
I came back, had lunch in the garden, and read an actual book in a deckchair until I fell asleep in it, which is the most luxurious thing a person can do and I recommend it without reservation. The book was not about distributed systems or incident management or anything I could pretend was professional development. It was a novel. I read it because the story was good and for no other reason.
The thing about rest you can't schedule
Here is what I have come to believe about rest, and it took me an embarrassingly long time. Rest is not the absence of work. Rest is the absence of the possibility of work. You can have a whole weekend with no tasks on it and still feel unrested if some part of your brain is holding a connection open, polling for the page that might come. That background process never fully sleeps, and it is expensive.
I have had weekends off the rota where I did more strenuous things than I do on a working day. Long rides, gardening, helping someone move house. And I came back to Monday feeling refreshed, because none of it carried the tether. And I have had quiet on-call weekends where I sat on the sofa the whole time and felt frayed by Sunday night, because the whole point of sitting on the sofa was being ready to move.
The difference is the open connection, and you cannot close it by deciding to. You close it by genuinely handing over, by someone else holding the thing, by being unreachable in a way you have agreed to in advance. That is the bit that does not show up on a calendar. A blank weekend is not a rested weekend. A handed-over weekend is.
On healthy rotas
I am not anti on-call. I have done a lot of it, I think it is part of the job for anyone who builds things that run, and I have strong opinions about people who design systems they themselves never have to carry the pager for. Being woken by your own bad decision at three in the morning is one of the great teachers, and a team that ships without that feedback loop ships worse software. So this is not a complaint about the institution.
It is a note about the maths. A rota only works if the off weeks are genuinely off. If you are nominally not on call but everyone still messages you because you are the one who knows that subsystem, then you are on call without the compensation or the formal handover, which is the worst of both. The whole value of a rota is that it lets people fully disconnect in turn. Erode that, and you do not have a rota, you have a permanent low-grade alertness shared unevenly across a team, and that is how you burn good people out slowly enough that nobody notices until they leave.
So the quiet weekend was not just pleasant. It was the system working as designed. Someone else was holding it, competently, and they will hand it back, and in a few weeks I will hold it whilst they go and fall asleep in a deckchair. That is the deal, and when it is honoured it is a good one.
Monday
I write this on Sunday evening, and for the first time in a while I am not doing the small mental rehearsal of where the laptop is and whether the VPN is up. Tomorrow I will pick the pager back up, metaphorically, and the tether will reattach, and that is fine. It is part of the work and I do not resent it.
But I had two days where it was fully off, and I went outside, and I read a book in a chair until I fell asleep. I had forgotten how much that is worth. I am writing it down so that next time, when the off weekend comes round again, I remember to actually take it.