[ovs-discuss] Mininet cannot run with ovs, maybe configuration problem

[Xuemei Liu]

Hi, Bob,

Thanks for your response. Finally I find the problem, it's the "Open Files
Limit problem". I track the error log of ovs-vswitchd process and get this
error log. After following the steps in
https://rtcamp.com/tutorials/linux/increase-open-files-limit/, the problem
is solved.
@Ben, sorry for annoying you.

Thanks,
Xuemei

On Mon, Aug 3, 2015 at 6:54 PM, Xuemei Liu <lxuemei3000 at gmail.com> wrote:

> Hi, Bob,
>
> Thanks for your response. Finally I find the problem, it's the "Open Files
> Limit problem". I track the error log of ovs-vswitchd process and get this
> error log. After following the steps in
> https://rtcamp.com/tutorials/linux/increase-open-files-limit/, the
> problem is solved.
> @Bob, sorry for annoying you.
>
> Thanks,
> Xuemei
>
> On Sun, Aug 2, 2015 at 6:52 PM, Bob Lantz <rlantz at cs.stanford.edu> wrote:
>
>> I’ve had ovs-vsctl not work as expected when I install multiple,
>> incompatible versions in various locations, as it sounds like you might
>> have done.
>>
>> I’d recommend carefully following the recommended, documented
>> installation procedure for OVS and/or mininet.
>>
>> If you think you have found a bug in mininet, please write to
>> mininet-discuss.
>>
>>
>> On Aug 1, 2015, at 6:43 PM, Xuemei Liu <lxuemei3000 at gmail.com> wrote:
>>
>> Hi, all,
>>
>> I find one problem while running ovs in mininet. I guess it should be mininet
>> / configuration / dependency issue, but I cannot figure it out.
>>
>> 1. If I install mininet using "install.sh -a", it will install mininet
>> with all dependencies, including ovs. Then "sudo mn --topo tree,3,3" works
>> through.
>> 2. If additionally I install OVS by myself (I mean git clone the latest
>> ovs and install it), "sudo mn --topo tree,3,3" cannot work through, just
>> stalls in the following step. The process ovs-vswitchd exits as well.
>> 3. In 2, "sudo mn --topo tree,2,3" can work through. It seems with fewer
>> switches it is ok.
>>
>> The problem occurs in a machine with ubuntu 14.04.1 and linux kernel
>> version 3.13.0-35-generic. On my pc there is no such problem with ubuntu
>> 14.04.2 and linux version 3.16.0-41-generic.
>>
>> This problem blocks me for one day. Does anyone have similar experience?
>>
>> Thanks,
>> Xuemei
>>
>> [image: Inline image 1]
>>
>>
>> _______________________________________________
>> discuss mailing list
>> discuss at openvswitch.org
>> http://openvswitch.org/mailman/listinfo/discuss
>>
>>
>>
>
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