On Fri, 10 Jul 2020 13:51:10 +0200, Michal Kubecek <mkubecek@suse.cz> wrote:
On Fri, Jul 10, 2020 at 11:49:45AM +0200, Richard Brown wrote:
Chiming in late, sorry
We recently moved MicroOS and Kubic to use tmpfs for /tmp instead of writing files there to disk. [...] All of these reasons also apply for regular openSUSE, so I would like to propose that Tumbleweed moves to tmpfs for /tmp soon also.
I would vehemently oppose, as we have 3rd-party applications that write to (NOT configurable) /tmp and expect it to last there for a certain time (even after a reboot). To workaround of that, I have created several symbolic links on /tmp to /data/tmp (or /opt/app/tmp or whatever) and I would be very unpleased to see all those symlinks disappear on a reboot. That would mean I have to write service files that fire up immediately after /tmp comes up and recreates those symlinks before the application wants to start. I really like to keep my /tmp's as clean as possible, but sometimes it is not under our control :( FWIW I never had to do anything like that on /usr/tmp
Does anyone have any objections, concerns, thoughts?
No objection to the general change but I would suggest two exceptions:
1. Systems where user created a specific mount point for /tmp (whether tmpfs or normal filesystem). According to the previous discussion, this should be taken care of already.
2. Systems with less memory than a certain threshold. I'm not sure what the threshold should be but I would be afraid to configure /tmp on tmpfs by default on systems with 4GB of RAM. 8GB might be OK, I have such configuration on my laptop with 8GB myself and didn't encounter any problems (but it took me quite some time to summon the courage).
:)
Michal Kubecek
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