Comment 0 for bug 1415811

Due to wrong variables scoping we use defaul SQLAlchemy backend values defined in openstack classes.

https://github.com/stackforge/fuel-library/blob/master/deployment/puppet/osnailyfacter/manifests/cluster_ha.pp#L478-L481

We should use top scope for those variables there because there's double class encapsulation in cluster_ha. So it shoukld look like this:

      max_retries => $::max_retries,
      max_pool_size => $::max_pool_size,
      max_overflow => $::max_overflow,
      idle_timeout => $::idle_timeout,