why is this bug incomplete? as far as I can see there is sufficient information to triage this...
Yes - you have to set the mtu on the lxc container interfaces to match the bridge, otherwise it drops to the lowest MTU of any attached veth. For now I've patched the config files to set the mtu correctly - but as soon as you juju add-unit --to lxc:XX it all collapses again. For OpenStack environments running overlay networks, setting interface MTU's on hosts is absolutely critical. ** Changed in: juju-core Status: Incomplete => New ** Changed in: lxc (Ubuntu) Status: Incomplete => New ** Tags added: cts -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1355813 Title: LXC containers reset bridge MTU on start/restart Status in juju-core: New Status in MAAS: Incomplete Status in “lxc” package in Ubuntu: New Bug description: Context: juju + MAAS deployed OpenStack environment, misc services deployed under LXC on the bootstrap node, interfaces configured for jumbo frames - note that I had to manually set the LXC container interfaces to mtu 9000 before the bridge would do the same. Action: Reboot one of the containers; MTU on br0 resets from 9000 -> 1500. This feels like more of a 'we need a better way to orchestrate MTU configuration across different services' so raising tasks for MAAS and Juju as well. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lxc 1.0.5-0ubuntu0.1 ProcVersionSignature: User Name 3.13.0-24.47-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 Date: Tue Aug 12 13:26:00 2014 KernLog: SourcePackage: lxc UpgradeStatus: No upgrade log present (probably fresh install) defaults.conf: lxc.network.type = veth lxc.network.link = lxcbr0 lxc.network.flags = up lxc.network.hwaddr = 00:16:3e:xx:xx:xx lxcsyslog: To manage notifications about this bug go to: https://bugs.launchpad.net/juju-core/+bug/1355813/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp