ceph-ansible/roles/ceph-handler/templates/restart_mds_daemon.sh.j2

#!/bin/bash

RETRIES="{{ handler_health_mds_check_retries }}"
DELAY="{{ handler_health_mds_check_delay }}"
MDS_NAME="{{ mds_name }}"
{% if containerized_deployment | bool %}
DOCKER_EXEC="{{ container_binary }} exec ceph-mds-{{ ansible_facts['hostname'] }}"
{% endif %}

# Backward compatibility
$DOCKER_EXEC test -S /var/run/ceph/{{ cluster }}-mds.{{ ansible_facts['fqdn'] }}.asok && SOCKET=/var/run/ceph/{{ cluster }}-mds.{{ ansible_facts['fqdn'] }}.asok
$DOCKER_EXEC test -S /var/run/ceph/{{ cluster }}-mds.{{ ansible_facts['hostname'] }}.asok && SOCKET=/var/run/ceph/{{ cluster }}-mds.{{ ansible_facts['hostname'] }}.asok

# First, restart the daemon
systemctl restart ceph-mds@${MDS_NAME}

# Wait and ensure the socket exists after restarting the daemds
while [ $RETRIES -ne 0 ]; do
  $DOCKER_EXEC test -S $SOCKET && exit 0
  sleep $DELAY
  let RETRIES=RETRIES-1
done
# If we reach this point, it means the socket is not present.
echo "Socket file ${SOCKET} could not be found, which means the Metadata Server is not running. Showing ceph-mds unit logs now:"
journalctl -u ceph-mds@${MDS_NAME}
exit 1