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openstack-ansible/doc/source/install-guide/ops-galera-recovery.rst
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Home OpenStack Ansible Installation Guide

Galera cluster recovery

When one or all nodes fail within a galera cluster you may need to re-bootstrap the environment. To make take advantage of the automation Ansible provides simply execute the galera-install.yml play using the galera-bootstrap to auto recover a node or an entire environment.

  1. Run the following Ansible command to show the failed nodes:

    $ openstack-ansible galera-install --tags galera-bootstrap

Upon completion of this command the cluster should be back online an in a functional state.