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

Pavel Emelyanov xemul at parallels.com
Tue Jul 14 06:31:29 PDT 2015


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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