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

[Yanbao Cui]

Thanks for your remind, vasily averin has readdress it for me

Kirill Kolyshkin <kir at odin.com>于2015年7月14日 周二 03:33写道：

>  Wrong list, please use criu at openvz.org
> On Jul 12, 2015 00:59, Yanbao Cui <yygcui at gmail.com> wrote:
>
> Hi,
>
>  I am working on the docker checkpoint/restore use CRIU, and the time
> consuming is the key point we concerned.
>
>  I found a strange phenomenon that the created socket need additional at
> least 0.5 seconds to reconnect after the docker restore done.
>
>  But if I create a new socket after restoring the docker , it will
> connect to the peer immediately.
>
>  No matter the connection uses TCP or UDP.
>
>  From the CRIU source code, I found that it will create a new socket with
> SO_REUSEADDR, and change the original fd to this new one. but I have no
> idea that why it need more time to recovery.
>
>  Could someone help me to explain it or give me some points?
>
>  Thanks very much!
>
>  --
>  Best Regards
> Cui Yanbao | 崔言宝
> --
> 龍生玖天，豈能安於凡塵！
>
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