Re: [Libguestfs] Thoughts on nbdkit automatic reconnection

On 9/19/19 4:50 AM, Richard W.M. Jones wrote: > On Wed, Sep 18, 2019 at 01:59:01PM +0100, Richard W.M. Jones wrote: >> We have a running problem with the nbdkit VDDK plugin where the VDDK >> side apparently disconnects or the network connection is interrupted. >> During a virt-v2v conversion this causes the entire operation to fail, >> and since v2v conversions take many hours that's not a happy outcome. >> >> (Aside: I should say that we see many cases where it's claimed that >> the connection was dropped, but often when we examine them in detail >> the cause is something else. But it seems like this disconnection >> thing does happen sometimes.) > > It turns out in the customer case that led us to talk about this, a > Checkpoint firewall was forcing the VDDK control connection to be > closed after an idle period. Would TCP keepalive help here?