ansible/roles/hadoop/tasks/format-zk.yml

#
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#
- name: Check if DFSZKFailoverController is running
  shell: jps | grep "DFSZKFailoverController" | grep -v grep
  ignore_errors: yes
  changed_when: false
  register: zkfc_status
- name: "Initialize HA state in ZK"
  command: "nohup {{ hadoop_home }}/bin/hdfs zkfc -formatZK -force"
  when: zkfc_status.rc == 1