Public bug reported: There's a lot of supposition in the title of this bug but its currently my best guess.
In this deployment, I have a number of services running in LXC containers across multiple physical hosts; each service is clustered across three units, all on separate physical hosts, using corosync and pacemaker; when using multicast to support cluster communication, I occasionally see a container drop out of the cluster and use its isolation response (to shutdown all managed services); when using unicast I've not yet see this same problem. LXC containers are bridged to the main physical network using a linux bridge: eth0 <-> juju-br0 <-> vethXXX <-> | vethXXX | All MTU's are standard (1500). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lxc 1.0.6-0ubuntu0.1 ProcVersionSignature: User Name 3.13.0-40.69-generic 3.13.11.10 Uname: Linux 3.13.0-40-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 Date: Mon Dec 15 17:20:08 2014 ProcEnviron: TERM=screen-bce PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash 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 ** Affects: lxc (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty uec-images -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1402763 Title: Multicast traffic not propating correctly over linux bridge To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1402763/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs