Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this ?

2011-12-14 Thread Jäkel , Guido
Dear Michael, I always hate replying to my own posts but I have stumbled onto some interesting clarification as I've continued to play with this... Below in-line. [...] Again a well-done investigation. For everyone who don't have the time to carefully read this threads, i want to sum the

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this ?

2011-12-13 Thread Michael H. Warfield
I always hate replying to my own posts but I have stumbled onto some interesting clarification as I've continued to play with this... Below in-line. On Tue, 2011-12-13 at 01:30 -0500, Michael H. Warfield wrote: On Mon, 2011-12-12 at 08:43 +0100, Ulli Horlacher wrote: On Sun 2011-12-11

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this?

2011-12-12 Thread Daniel Lezcano
On 12/12/2011 04:48 AM, Derek Simkowiak wrote: When there are only one bridge on the system or the bridges are not connected together, this option is pointless and we can set the delay to '0'. That makes the port to be enabled instantaneously, hence the container can access the network

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this ?

2011-12-12 Thread Michael H. Warfield
On Mon, 2011-12-12 at 08:43 +0100, Ulli Horlacher wrote: On Sun 2011-12-11 (19:48), Derek Simkowiak wrote: The problem is not related to the setfd option. It is caused by the bridge acquired a new MAC address. Libvirt already has a fix for this, and there is a patch in the works

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this?

2011-12-11 Thread Daniel Lezcano
On 12/08/2011 09:25 AM, Ulli Horlacher wrote: On Thu 2011-12-08 (07:39), Daniel Lezcano wrote: On 12/08/2011 12:38 AM, Joseph Heck wrote: I've been seeing a pause in the whole networking stack when starting and stopping LXC - it seems to be somewhat intermittent, but happens reasonably

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this?

2011-12-11 Thread Derek Simkowiak
When there are only one bridge on the system or the bridges are not connected together, this option is pointless and we can set the delay to '0'. That makes the port to be enabled instantaneously, hence the container can access the network immediately after the start. As previously posted,

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this?

2011-12-08 Thread Gary Ballantyne
On 08/12/11 19:39, Daniel Lezcano wrote: On 12/08/2011 12:38 AM, Joseph Heck wrote: I've been seeing a pause in the whole networking stack when starting and stopping LXC - it seems to be somewhat intermittent, but happens reasonably consistently the first time I start up the LXC. I'm using

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this?

2011-12-08 Thread Michael H. Warfield
On Thu, 2011-12-08 at 19:47 +1300, Gary Ballantyne wrote: On 08/12/11 19:39, Daniel Lezcano wrote: On 12/08/2011 12:38 AM, Joseph Heck wrote: I've been seeing a pause in the whole networking stack when starting and stopping LXC - it seems to be somewhat intermittent, but happens

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this?

2011-12-07 Thread Derek Simkowiak
/I've been seeing a pause in the whole networking stack/... It's because you use bridged networking. A Linux host bridge will sometimes inherit a new MAC address, causing a ~4 second network blackout while ARP tables refresh. This is inconvenient for server-based virtualization

Re: [Lxc-users] seeing a network pause when starting and stopping LXCs - how do I stop this?

2011-12-07 Thread Daniel Lezcano
On 12/08/2011 12:38 AM, Joseph Heck wrote: I've been seeing a pause in the whole networking stack when starting and stopping LXC - it seems to be somewhat intermittent, but happens reasonably consistently the first time I start up the LXC. I'm using ubuntu 11.10, which is using LXC 0.7.5