Juju Charms Collection
rabbitmq-server package

  1. Bug #1657245
  2. Comment #4

Comment 4 for bug 1657245

Revision history for this message
David Ames (thedac) wrote : Re: Malformed 3 unit cluster

The leader election issues in bug https://bugs.launchpad.net/charms/+source/rabbitmq-server/+bug/1654116/ is a prime suspect for this bug. We'll follow the juju-core response there.

In the meantime, while testing the leadership bug it revealed this bug as a charm bug. The rabbitmq-server charm is not waiting until the cluster is completely formed before running amqp-relation-* hooks. This at least in theory could lead to the split brain problems described here.

Working on a change that
1) Will use the min-cluster-size to try and guarantee waiting for the full cluster to form
2) When min-cluster is not set try and determine the number of cluster relations and wait on them
3) Once the cluster is formed only the leader node will run amqp-relation-*
   The extant charm does this to some degree already and thus the suspicion of Bug#1654116