13 May
2019
13 May
'19
6:39 a.m.
On Mon, May 13, 2019 at 11:17:45AM +0100, Daniel P. Berrangé wrote:
This is a long mail about ENOMEM (OOM) handling in libvirt. The executive summary is that it is not worth the maint cost because:
- this code will almost never run on Linux hosts
- if it does run it will likely have bad behaviour silently dropping data or crashing the process
- apps using libvirt often do so via a non-C language that aborts/exits the app on OOM regardless, or use other C libraries that abort
- we can build a system that is more reliable when OOM happens by not catching OOM, instead simply letting apps exit, restart and carry on where they left off
The long answer follows...
[...] +1 as I was planning to slowly convince others as well. Pavel