openstack-ansible/releasenotes/notes/rsync_reverse_lookup-609fb6...

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---
features:
- The ``swift_rsync_reverse_lookup`` option has been added. This setting
will handle whether rsync performs reverse lookups on client IP
addresses, and will default to ``False``. We recommend leaving this
option at ``False``, unless DNS or host entries exist for each swift
host's replication address.
upgrade:
- The default behaviour of rsync, to perform reverse lookups, has
been changed to ``False``. This can be set to ``True`` by
setting the ``swift_rsync_reverse_lookup`` variable to ``True``.