[Users] loopback connection problem

[Kir Kolyshkin]

On 07/21/2014 03:33 PM, Denis Zinevich wrote:
> 21.07.2014, 20:02, "Kir Kolyshkin" <kir at openvz.org>:
>> 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.
> There's not much to collect. I thought about that first of all, and tried disabling iptables, etc... Thing is that I have problem connecting to 127.0.0.1 inside container. It's not filtered at all.
> One more problem is that if you try 10 times in a row "telnet 127.0.0.1 9000" it will work / do not work randomly. may be 50/50, 10/90, 0/100.
> So I even can't reproduce this issue with any warranty.
>

What application do you have listening on that port?
Can you retry with something standard like say apache?

Kir.