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<div class="moz-cite-prefix">On 06/03/2015 06:45 PM, Divjyot sethi
wrote:<br>
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<div>Hey Pavel,<br>
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After a bit of a hiatus, I finally got around to istalling
everything on my machines and am now trying to live migrate
OpenVZ containers running CentOS with p.haul. I however get
an error at CRIU dump stage -- log file says "Error
(sk-unix.c:222): Unix socket 0x6893 without peer 0xc5b". Any
thoughts on this issue?<br>
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<br>
The message essentially means that there is a UNIX socket that has
one end inside the container and the other end out of it. Like, a
container is running mysql and someone who's not inside that CT is
connected to it via a UNIX socket. CRIU warns you that if you will
checkpoint a process at one end of such a socket, a process at the
other end might get disappointed. In case you know what you are
doing, you can add --ext-unix-sk to criu commandline to allow
checkpointing of such processes.<br>
<br>
This is as much as I can tell without looking into speciifics.<br>
<br>
Regards,<br>
Kir.<br>
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Thanks,<br>
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Divjyot<br>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Apr 28, 2015 at 1:15 AM, Pavel
Emelyanov <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:xemul@parallels.com" target="_blank">xemul@parallels.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex"><span
class="">On 04/27/2015 10:43 PM, Divjyot sethi wrote:<br>
> Hey Pavel,<br>
</span><span class="">> I have been trying to setup
OpenVZ on fedora 20 as you had advised for the past few
days. I<br>
> was able to create a container and start it. However,
I am unable to enter the container<br>
</span>> (gives error: /Directory /proc/vz not found,
assuming non-OpenVZ kernel<br>
<span class="">> enter into CT 1002 failed<br>
</span>> Unable to open pty: No such file or directory/).<br>
<br>
Yes, entering for Fedora kernel doesn't work. You can ssh
into container instead,<br>
the [1] article describes how to setup networking for
container to make it<br>
migrate-able.<br>
<br>
[1] <a moz-do-not-send="true"
href="https://github.com/xemul/p.haul/wiki/Configuring-network-for-OpenVZ-container"
target="_blank">https://github.com/xemul/p.haul/wiki/Configuring-network-for-OpenVZ-container</a><br>
<br>
> I tried the instructions on /<a moz-do-not-send="true"
href="http://wiki.openvz.org/Container_enter_failed/"
target="_blank">http://wiki.openvz.org/Container_enter_failed/</a>,
and,<br>
> /<a moz-do-not-send="true"
href="https://openvz.org/Vzctl_for_upstream_kernel/"
target="_blank">https://openvz.org/Vzctl_for_upstream_kernel/</a>
but no luck. Since this is an upstream kernel<br>
<span class="">> - not sure if there are any patches
available for this? (I have been booting regular kernel).<br>
><br>
> Can you please help me with setting this up? Also,
did you patch your kernel? Were you able<br>
> to enter the container or you just ssh to it instead?<br>
<br>
</span>Entering openvz container only works for patched
kernel. But for patched kernel<br>
there's still no criu support :( But openvz kernel guys are
working on it.<br>
<span class=""><br>
> Finally, not sure if this question is apt for this
mailing list?<br>
> If not, is there an alternate mailing list to which I
can email?<br>
<br>
</span>Well, for openvz-related questions the <a
moz-do-not-send="true" href="mailto:devel@openvz.org">devel@openvz.org</a>
is good place to start, but<br>
for C/R and live migration questions it's better to at least
Cc: criu@ mailing list.<br>
<div class="HOEnZb">
<div class="h5"><br>
> Thanks for your help!<br>
> Divjyot<br>
<br>
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<span class="HOEnZb"><font color="#888888">-- Pavel<br>
<br>
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