Re: [Qemu-devel] drive-mirroring to nbd is failing with multiple parallel jobs (qemu 2.9 -> 2.11)
> On 15 Feb 2018, at 04:42, Wouter Verhelst <firstname.lastname@example.org> wrote:
> We already set the SO_KEEPALIVE socket option (at least nbd-server does;
> don't know about qemu) to make the kernel send out TCP-level keepalive
> probes. This happens only after two hours (by default), but it's
> something you can configure on your system if you need it to be lower.
+1 for just using SO_KEEPALIVE. I think I even submitted some (untested
and thus unmerged) patches for this.