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Re: [Qemu-devel] drive-mirroring to nbd is failing with multiple paralle
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From: |
Alex Bligh |
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Subject: |
Re: [Qemu-devel] drive-mirroring to nbd is failing with multiple parallel jobs (qemu 2.9 -> 2.11) |
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Date: |
Fri, 16 Feb 2018 05:19:46 -0500 |
> On 15 Feb 2018, at 04:42, Wouter Verhelst <address@hidden> 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.
--
Alex Bligh