[lxc-users] LXD cluster is unresponsible: all lxc related commands hangs

[Stéphane Graber]

Apt upgrades shouldn't really be needed, though certainly good to make
sure the rest of the system stays up to date :)

The most important part is ensuring that all cluster nodes run the same
version of LXD (3.4 in this case), once they all do, the cluster should
allow queries.

This upgrade procedure isn't so great and we're well aware of it.
I'll open a Github issue to track some improvements we should be making
to make such upgrades much more seamless.

On Fri, Aug 17, 2018 at 11:26:08PM +0800, ronkaluta wrote:
> I just had roughly the same problem.
> 
> The way I cured it was to snap refresh
> 
> then sudo apt update and then
> 
> sudo apt upgrade
> 
> current lxd snap is 3.4
> 
> current linux-image-4.15.0-32-generic
> 
> I then rebooted.
> 
> (same procedure on all machines)
> 
> 
> On Friday, August 17, 2018 10:46 PM, Stéphane Graber wrote:
> > On Fri, Aug 17, 2018 at 01:20:42PM +0300, Andriy Tovstik wrote:
> > > Hi, all!
> > > 
> > > Some time ago I installed a dual node LXD cluster. Today I logged in to the
> > > node and tried to execute
> > > lxc exec container -- bash
> > > but command hanged.
> > > Also, all lxc commands are unresponsible: i'm not able to interact with my
> > > cluster and my containers.
> > > I tried to restart snap.lxd.daemon but it didn't help. journalctl -u
> > > snap.lxd.daemon - in attachment.
> > > 
> > > Any suggestion?
> > Are both nodes running the same snap revision according to `snap list`?
> > 
> > LXD cluster nodes must all run the exact same version, otherwise they
> > effectively wait until this becomes the case before they start replying
> > to API queries.


-- 
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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