[Users] loopback connection problem

[Kir Kolyshkin]

On 07/21/2014 02:54 AM, Denis Zinevich wrote:
> Hi all,
>
> Now I'm on 2.6.32-042stab088.4 and got exactly same problem again, but now during load tests (not so hogh load though).
> Randomly it works or not. When issue occurs I just can't telnet to any port - connection times out.

My guess is it is not kernel version related. You need to collect your
routing tables, iptables rules,
arp table etc. when it is working and when it is not working, compare
and try to find what's wrong.

Kir.

>
> 19.05.2014, 12:46, "Denis Zinevich" <link at ngc.net.ua>:
>> 19.05.2014, 00:12, "Kir Kolyshkin" <kir at openvz.org>:
>>>  On 05/18/2014 03:01 AM, Bogdan-Stefan Rotariu wrote:
>>>>>   On May 18, 2014, at 11:30, Denis Zinevich <link at ngc.net.ua> wrote:
>>>>>
>>>>>   juts got fresh info which narrows problem:
>>>>>   I was comparing normal and faulty containers, and found that they are using different kernels (on one server containers were not restarted after yum upgrade)
>>>>>   so normal one was using 2.6.32-042stab084.26
>>>>>   and faulty - 2.6.32-042stab085.20
>>>>>   Then I've restarted normal container (084.26), so now it uses 085.20. Got same problem on previously normal container - no more connection to localhost.
>>>>   Not directly related to this problem, I had strange oops and other issues(internal clock not working properly) with 2.6.32-042stab085.20.
>>>  Please always file bugs to https://bugzilla.openvz.org/ for such stuff.
>>>>   I recommend not to use kernel 2.6.32-042stab085.20.
>>>  The latest stable kernel  is currently 042stab088.4, released a month ago.
>>>  I suggest everyone to use the latest stable kernel.
>> Hello,
>> yesterday I've updated to 042stab088.4, problem seems to be gone. I think there is no sense opening bug for 085.20 since new version works fine.
>> Thanks for your attention.
>>
>> --
>> Denis
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