[CRIU] [Users] socket will take at least 0.5 seconds to recovery after docker restore done

[Yanbao Cui]

Server is working always and waiting. It seems the client, which is in the
container, cannot send data out after restored.

For TCP, yeah, the client try to reconnect manually.

The delay is happened after restore successful, although the network is
recovered

Pavel Emelyanov <xemul at parallels.com>于2015年7月14日 周二 21:31写道：

> On 07/14/2015 04:15 PM, Yanbao Cui wrote:
> > Sorry for mistake.
> > For UDP, I mean the sever can receive the packet from client again.
>
> So where's the 0.5 seconds delay? Server sleeps and doesn't wake up,
> packets
> do not reach the server or something else?
>
> > Actually, I have analysis the tcpdump output, in my case, the client try
> to reconnect
> > to the server again, but can not receive SYN+ACK, so it re-transmission
> after 1 second
> > according to the client rule, and then try again.
>
> During migration we don't reconnect TCP (with regular SYN, SYNACK, ACK
> sequence),
> do you reconnect them manually?
>
> -- Pavel
>
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