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From Nux! <...@li.nux.ro>
Subject Re: Regular total loss of connectivity
Date Mon, 01 Jun 2015 13:35:09 GMT
Nope, it's a regular, non-redundant VR.

I've switched to using e1000 instead of virtio, waiting for a few hours, so how it pans out.
:-)

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

----- Original Message -----
> From: "Simon Weller" <sweller@ena.com>
> To: dev@cloudstack.apache.org
> Cc: "Cloudstack Users List" <users@cloudstack.apache.org>
> Sent: Monday, 1 June, 2015 13:32:26
> Subject: Re: Regular total loss of connectivity

> Is this VR in a redundant pair? If so, does stopping the master and allowing the
> slave to take over allow the flow of traffic to resume?
> 
> 
> ________________________________________
> From: Nux! <nux@li.nux.ro>
> Sent: Monday, June 1, 2015 6:45 AM
> To: dev@cloudstack.apache.org
> Cc: Cloudstack Users List
> Subject: Re: Regular total loss of connectivity
> 
> Thanks Simon,
> 
> link up/down has not helped, setting tso etc off on the link has not helped
> either.
> Connectivity is lost as usual after ~4 hours.
> 
> I found some suggestions to try and use the e1000 nic instead of virtio, will do
> that.
> 
> Lucian
> 
> --
> Sent from the Delta quadrant using Borg technology!
> 
> Nux!
> www.nux.ro
> 
> ----- Original Message -----
>> From: "Simon Weller" <sweller@ena.com>
>> To: "dev" <dev@cloudstack.apache.org>, "Cloudstack Users List"
>> <users@cloudstack.apache.org>
>> Sent: Sunday, 31 May, 2015 22:36:56
>> Subject: Re: Regular total loss of connectivity
> 
>> If you ifdown the interface on the router and then ifup it again, does the arp
>> problem resolve itself?
>>
>> We've seen a similar issue before caused by malicious/heavy traffic related to
>> this bug:
>>
>> https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/997978
>>
>> - Si
>> ________________________________________
>> From: Nux! <nux@li.nux.ro>
>> Sent: Sunday, May 31, 2015 4:25 PM
>> To: dev; Cloudstack Users List
>> Subject: Regular total loss of connectivity
>>
>> Hi,
>>
>> Following a power cut, one of my cloudstack deployments is having a really weird
>> problem that I cannot seem to solve on my own.
>> Every 3 hours all the public IPs on the VR stop responding from the Internet.
>> From the VR they are of course all reachable.
>> In the same VLAN as the public IPs there is another physical server, this one
>> can also access the VMs on their IPs just fine.
>>
>> The provider has not found the problem and hints at problems with the cloud
>> platform, however cloudstack worked just fine until the power cut, not to
>> mention the problem persists through HV and ACS upgrades.
>>
>> I'm thinking network side arp issues or something like this, alas I am not that
>> good with network stuff and don't have access to it anyway.
>>
>> If I reboot the VR once or twice the IPs start working again and the VMs are
>> accessible from the internet.
>>
>> Ideas?
>>
>> Env: CentOS 6, KVM, ACS 44 to 4.5.1, Adv zone
>>
>> Lucian
>>
>> --
>> Sent from the Delta quadrant using Borg technology!
>>
>> Nux!
> > www.nux.ro

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